Project : East west rail - Oxford to Cambridge

Publication date 24 March 2022
Revised 28 March 2024

Improving the rail network in Hertfordshire

This is part four of our review into travel by rail in the Oxford to Cambridge arc.

As also in part three, much of our focus will be on the Abbey line. This is a single-track line, permitting a train either in the direction Watford Junction to St Albans Abbey or in the opposite direction but not both at the same time. Indeed the current service is provided by a single train.

It is recommended to read the home page and then to read part three, starting at the section "Impact on the Alban Way" Impact on the Alban Way through to the end, prior to reading this part, part four.

A full set of links to sections in part three is available on the home page.

All four parts can be accessed via List of articles

Redevelopment of London Road business park

As mentioned in part three section "A new line from St Albans Abbey" and in part two section "Some options for extending the Abbey line", London Road business park is being redeveloped to provide houses and apartments:
https://www.hertfordshiremercury.co.uk/news/hertfordshire-news/housing-estate-coming-st-albans-6386996

There are concerns regarding access from London Road. Google streetview starting from
https://www.instantstreetview.com/@51.744914,-0.326672,270h,-5.45p,0.4z,43HvstE9VcoLEpRTU8R8Xg
can be made use of to understand the issue, by using the arrows to move along the road and the compass to change orientation.

There is also concern regarding overlooking. If a rail link were to be provided between St Albans Abbey and St Albans City stations, residents would be overlooked on one side and, on the other side, there would be a rail link at a high level.

At some point the Google streetview, above, will no longer show the business park prior to redevelopment but instead the redeveloped site. It is reasonable for prospective purchasers to have knowledge of the business park prior to redevelopment. Hence we are making the following printouts available, courtesy of Google. They start from the car park at the south. Each opens in a new window or tab.

London Road business park print 1 print 2 print 3 print 4 print 5 print 6 print 7 print 8 print 9 print 10
London Road business park print 11 print 12 print 13 print 14 print 15 print 16 print 17 print 18 print 19 print 20
London Road business park print 21 print 22 print 23 print 24 print 25 print 26 print 27 print 28 print 29 print 30
London Road business park print 31 print 32 print 33 print 34 print 35 print 36 print 37 print 38 print 39 print 40
London Road business park print 41 print 42 print 43 print 44 print 45 print 46
London Road business park view westwards view westwards 1

Watford Junction to St Albans City

The dismantled link north east from How Wood to St Albans City, known as the link at Napsbury, is obstructed by Radlett freight terminal as proposed. If the freight terminal as proposed does not proceed, reopening the dismantled link through what is currently woodland would require rebuilding the former bridge over the A5183, for which one of the buttresses of the former bridge still exists and building a bridge over The Beeches. This would provide a single track link although this would reasonably become dual track across the site of the former Radlett airfield.

The former link to the MML at Napsbury branches off the Abbey line at How Wood station and is now wooded:

https://www.google.co.uk/maps/@51.719656,-0.339097,540m/data=!3m1!1e3

A buttress of the former bridge:

https://www.google.co.uk/maps/@51.7211897,-0.337644,3a,75y,90h,95.57t/data=!3m6!1e1!3m4!1sMOmSMjdIzaYnzjPRxvfi4A!2e0!7i16384!8i8192

To facilitate operations it would be reasonable to provide an in-station passing loop at How Wood station.

Watford Junction to London Colney

A railway station at London Colney is introduced in the next section "Railway station at London Colney".

If Radlett freight terminal does not proceed, Watford Junction to London Colney would seem to be a realistic proposal. A train passing facility at How Wood would dovetail in with this, with a centrally-located island platform pair between the tracks. North of here, the western-most track would be for trains to St Albans Abbey, the eastern-most track for trains to London Colney. There would reasonably be a pair of crossovers enabling trains to St Albans Abbey and to London Colney from the western platform and trains from St Albans Abbey and from London Colney at the eastern platform.

There could be potential to trial Digital Automatic Coupling (DAC) at How Wood. Currently in use for freight trains it is also thought to be in limited use for passenger trains, although neither of these in the UK, to our knowledge. A train from Watford would divide to form a train to St Albans Abbey and a train to London Colney. In the reverse direction, a train from St Albans Abbey and a train from London Colney would be attached. Passengers between St Albans Abbey and London Colney would change at How Wood. There would seem to be two potential arrangements, illustrated below.

In the first arrangement, passengers change trains to the train diagonally opposite:

Changing to train diagonally opposite at How Wood

In the second arrangement, passengers change trains to the train directly opposite:

Changing to train opposite at How Wood
Railway station at London Colney

We are proposing a railway station at London Colney. There would be a service from London Colney on the Midland Main Line (MML) to St Pancras International for continental rail services, Central London and Gatwick Airport.


The Abbey line extended to London Colney

There would be a rail link to Watford Junction. This might be a conventional rail link with trains to St Albans Abbey and intermediate stations terminating at Watford Junction. There is the alternative option of light rail, as for conventional rail but extended to Watford High Street and a new station Watford Hospital. The light rail option is documented later in section "Connecting the Abbey line to Watford High Street".

East west rail in Hertfordshire and environs

A railway line eastwards to Hatfield would reasonably be planned and safeguarded.

It is likely that an interchange will be needed at London Colney between a local service from Watford and the Midland Main Line (MML) service. How might London Colney station be designed to permit an interchange by crossing from one platform to another without having to use a bridge or tunnel between the platforms? One possibility would be for through services to call at a central island platform pair which has one or two bay platforms built into it. Interchange on the level is achieved by passing the end of the bay platforms, however passenger flows have to be considered. It would seem reasonable to provide a well-signposted interchange by means of a bridge or tunnel, with the option of passing the end of the bay platforms suitably sign-posted e.g. for persons of reduced mobility.

Options for east west rail at Watford Junction

Options for east west rail at Watford Junction have to take account of Radlett Strategic Rail Freight Interchange (SRFI) i.e. freight terminal on the former Radlett (Handley Page) airfield site, if it proceeds.

Radlett SRFI as proposed can be assessed by viewing the illustrative masterplan provided by the proposers Illustrative Masterplan who have also made available a site location plan Site Location Plan (both open in a new window or tab). It may be worthwhile to keep the first of these open whilst reading the following.

If Radlett freight terminal proceeds, it makes St Albans Abbey station indispensable for east west rail travel, since the lines illustrated in solid red below are obstructed by the freight terminal and cannot be implemented. The line in light blue illustrates the rail chord giving rail access to the freight terminal. The shaded area is an illustration of the freight terminal site masterplan i.e. the ground that it occupies.

Options for conventional rail in the Rickmansworth, Watford and St Albans area

There are lots of options for east west rail at Watford Junction and vicinity. Here is a list of some of these options. Some of these are alternatives, whereas some of these can be combined. This list could be written in any order and therefore we do not refer to the option numbers later.

Option 1. Connecting the St Albans Abbey line to Watford High Street by means of a redeveloped underpass at Watford Junction. Further information on this option, also options 2 to 4, later.

Option 2. Connecting the St Albans Abbey line to Watford High Street by means of a flyover at Watford Junction.

Option 3. A light rail connection between the St Albans Abbey line and Watford High Street, at Watford Junction, passing beneath the Stephenson Way Viaduct.

Option 4 : A tunnelled connection from Watford (Met) to the St Albans Abbey line via Watford Junction with a new station stop Watford Parade, illustrated with red dots above.

Option 5 : The Croxley rail link, illustrated in orange.

Option 6 : An Ebury Way rail link, illustrated in purple.

Option 7 : St Albans Abbey to St Albans City in a semi-circle, trains changing direction at St Albans Abbey, illustrated in dark blue.

Option 8 : St Albans Abbey to Radlett, illustrated in dark blue.

Option 9 : St Albans Abbey to London Colney, illustrated in orange. Further imformation on this is available in part three section "A new line from St Albans Abbey". In terms of coexistence with Radlett SRFI, in an ideal world, the line would connect onto the underpass beneath the Midland Main Line (MML) built to provide rail access to the SRFI. If this is not achievable, a separate Midland Main Line (MML) bridge or underpass would need to be built and probably aligned a little differently.

Option 10 : Radlett to London Colney, illustrated in pink. This might branch off the line in light blue itself requiring an upgrade from a freight link to be used by passenger services.

Option 11 : St Albans City to London Colney, illustrated in dark green.

Option 12 : A new line northwards from St Albans Abbey, not illustrated, e.g. serving new developments at Hemel Hempstead, possibly continuing to Luton.

Those who are skim-reading may wish to pass over the next section "The Croxley Rail Link is not dead" and continue at the following section "Connecting the Abbey line to Watford High Street".

The Croxley Rail Link is not dead

The following map shows the existing railway lines and stations around Watford. The station labelled Watford is also known as Watford (Met). It is the terminus of the Metropolitan Line branch to Watford. In a north easterly direction from Watford Junction is the Abbey line to St Albans Abbey. Click the map for Wikimedia information.

Watford railways

The following map shows the envisaged route of the Metropolitan Line Extension (MLX). This was formerly known as the Croxley Rail Link, being terminology that we still employ. This time, the Abbey line is absent from the map.

The Metropolitan Line Extension, also or formerly known as the Croxley Rail Link, extends the Metropolitan Line via Croxley to Watford Junction. The Croxley Rail Link is oriented south west from Watford High Street making use of the start of a dismantled rail link to a former station Rickmansworth Church Street, not shown, and then turns north west, on a dismantled branch. It then requires a connection onto the existing Metropolitan line branch via Croxley currently terminating at Watford (Met).

There is a triangular junction between Rickmansworth, Croxley and Moor Park. The chord between Rickmansworth and Croxley at this junction is known as the Watford North curve, albeit not in the vicinity of Watford North station on the Abbey line. The Watford North curve enables Rickmansworth to Watford Junction. Click the map for Wikimedia information.

Croxley rail link map


As an alternative to the Croxley rail link, there could be a tunnelled connection from Watford (Met) to Watford North on the Abbey line via Watford Junction, whilst retaining the connection from the Abbey line onto the WCML. An intermediate station Watford Parade (or Watford Pond?) would be provided between Watford (Met) and Watford Junction. A tunnelled connection would not enable an extension of London Overground (Lioness line) services i.e. via Bushey on to the Abbey line to St Albans Abbey. An extension of Metropolitan line services on to the Abbey line would be possible or, at the least, to Watford Junction. The Croxley rail link was planned to enable Metropolitan line services to Watford Junction but with the loss of Watford (Met) station. This alternative brings Metropolitan line services to Watford Junction whilst retaining Watford (Met).

Options for conventional rail in the Rickmansworth, Watford and St Albans area

Another alternative to the Croxley rail link could be an Ebury Way rail link, coloured in purple above. The Ebury Way from Watford High Street to Rickmansworth is shown at https://www.openstreetmap.org/#map=16/51.6489/-0.4007 and at https://www.openstreetmap.org/#map=16/51.6411/-0.4328

With reference to the second of these openstreetmap.org links, Croxley Common Moor is shown. Courtesy of Google, here is a view from high up on Croxley Common Moor. On the left is the Ebury Way alongside the built-up area. By zooming in further to the right, there is the railway line to Rickmansworth. An Ebury Way rail link from the Ebury Way on to the railway line to Rickmansworth could be constructed in this location.

https://www.google.co.uk/maps/@51.6424772,-0.43787,3a,75y,180h,90t/data=!3m8!1e1!3m6!1sAF1QipNRBiqlRGcJP-Bs8sTE5p4fs4EqSwRGBN8qUtbx!2e10!3e11!6shttps:%2F%2Flh5.googleusercontent.com%2Fp%2FAF1QipNRBiqlRGcJP-Bs8sTE5p4fs4EqSwRGBN8qUtbx%3Dw203-h100-k-no-pi0-ya160.76163-ro0-fo100!7i8192!8i4096

Returning to the Croxley rail link as originally planned, a crossing could be envisaged over or under the WCML at Watford connecting Watford High Street to the Abbey line via Watford Junction although this was not part of the plan. This is discussed in the next section "Connecting the Abbey line to Watford High Street".

There have been persistent issues regarding funding of the Metropolitan Line Extension (MLX). In June 2021 Steer published "Metropolitan Line Extension Alternatives" ( Referenced papers and reports ). On pages 30 and 31 of this document

"Croxley rail link :
2.54 The original Metropolitan Line Extension (MLX) would have included the use of the former Croxley Branch Line, which is currently owned by Network Rail under the London and North Western Railway Act 1907. The MLX would have involved the construction of a viaduct over the Grand Union Canal, River Gade and A412 road. The need to build a viaduct to connect the line to the proposed Cassiobridge and Watford Vicarage Road stations is a constraint, as it was a key cause of the scheme’s unaffordability, as well as the signalling costs associated with the compatibility between the underground and rail systems.
2.55 There is an opportunity to include the disused alignment in alternative options, which will be considered in this study."

On page 109

"9.1 The MLX delivers best against the local and strategic connectivity scheme objectives and, in this respect, is the best performing of all the options considered. However, the affordability issues are such that there is no realistic prospect of the MLX scheme being progressed in the near or medium-term."

On page 122

"10.4 As such, the study has concluded that no alternative meets the project objectives as well as the former MLX scheme did, which was discontinued due to affordability reasons."

So, in terms of meeting project objectives, the best option is to proceed with the former MLX scheme, but with a question of affordability. Whilst rail costs are too high, albeit a matter not discussed here, there is the opportunity to render MLX more affordable by combining it with the aspiration of a Aylesbury - Watford rail corridor. In part three section "Outline business case" we outline the business case for a St Albans to Hatfield rail corridor. Towards the end of that section we suggest assessing MLX and Aylesbury - Watford as a single project. Since no such assessment has taken place, MLX should not be regarded as dead.

In passing, we take the opportunity to note that Aylesbury - Watford without MLE would merit evaluation since this offers the opportunity to reduce capital costs by avoiding the signalling costs associated with compatibility between underground and rail systems.

On page 53 table 6.2 there is indeed the objective of "Sustainable connectivity to the West (Rickmansworth / Amersham / Aylesbury)" however this has not been assessed as a single project with MLX.

On page 48 section 6.5 "One objective will be to provide a viable alternative to private car-based travel on the congested A412 route." Our proposal for east west rail in Hertfordshire certainly does that.

Let us now turn to the matter of Mass Rapid Transit (MRT). On page 79

"Description of Mass Rapid Transit in the MLX Alternatives Context.
Mass Rapid Transit (MRT) is a generic description to describe high-quality rubber-tyred transit options. These cover a spectrum of vehicles ranging from a high-quality conventional bus (low floor, low emission) to vehicles similar in specification to trams."

Trams or tram-trains, i.e. running on rails, are separated out in this document into the preceding section (pages 77-79), with an overall summary "Significant deliverability and affordability risks". This is a different approach from the A414 corridor strategy technical report ( Referenced papers and reports ) where Mass Rapid Transit is defined as

"A public transport service including bus, tram or similar which carries multiple passengers on a prioritised route. A bus rapid transit is a form of Mass Rapid Transit." (page 75).

Returning to the Metropolitan Line Extension Alternatives document, on page 116

"9.40 The A414 is a dualled road running from the A41 west of Hemel Hempstead all the way to Chelmsford. This road is characterised by high congestion levels.
9.41 However, the A414 is the key route between Watford – St Albans and Welwyn and has been identified by HCC as a potential route for MRT."

This identifies a design flaw in the MRT proposal. There is no proposal for MRT vehicles to be routed anywhere other than via the A414. As a result, either the A414 is downgraded to permit MRT vehicles to run on a dedicated bus lane, in which case congestion on the A414 is likely to increase, or they share the A414 with other vehicles. In the second case, they are likely to be subject to delay due to congestion, resulting in the entire MRT project being at risk of failure. We will return to this later in section "HERT converts the Abbey line to a busway".

There are three options for Mass Rapid Transit (MRT) in terms of routing through Watford town centre. All three envisage MRT vehicles to Watford Junction via Clarendon Road. They are illustrated on pages 82, 85 and 88, noting the annotation "St Albans Extensions". This confirms conversion of the Abbey line to a MRT/busway requires MRT vehicles to take over the underpass from Station Road to the car parks, rendering the car parks inaccessible and therefore triggering redevelopment of Watford Junction. It is sad to note that redevelopment of the station is presented as an opportunity to capitalise on the commercial value of the site, the real reason being to enable MRT vehicles to cross the main line. The true costs of the MRT project are therefore being disguised. This point is noted in part three section "A review of Hertfordshire - Essex Rapid Transit (HERT)" in our response referenced there to the HERT public engagement November 2021 - January 2022.

When (i) there has been no assessment of MLX and Aylesbury - Watford as a single project and when (ii) the true costs of the MRT project and of HERT are being disguised, it is clear that the Croxley Rail Link should not be regarded as dead.

Some additional comments on the document follow.

Hertfordshire County Council policy towards the Abbey line is reproduced on page 45

"5.10 The position of HCC is that it supports the continued use of the Abbey Line as a heavy rail operation, whilst seeking improvements that would increase service frequencies. HCC would consider longer-term options if these were to enhance connectivity for the line." Since this was quoted, there is now a published plan to close the Abbey line, section "HERT converts the Abbey line to a busway".

Pages 66 to 68 discuss Underground Option 2 – Metropolitan Line Extension to Watford Junction via tunnel. Key infrastructure would include a new underground station at Watford Junction, and potentially also in Watford Town Centre. This is the tunnelled connection we discussed earlier, as originally hypothesised in part two of our research.

The document "Metropolitan Line Extension Alternatives" published by Steer is also referenced in the next section "Connecting the Abbey line to Watford High Street".

Connecting the Abbey line to Watford High Street

We here discuss connecting the Abbey line to Watford High Street via a rail connection at Watford Junction.

In June 2021 Steer published "Metropolitan Line Extension Alternatives" ( Referenced papers and reports ).

There are three options for Mass Rapid Transit (MRT) in terms of routing through Watford town centre. All three envisage MRT vehicles to Watford Junction via Clarendon Road. They are illustrated on pages 82, 85 and 88, noting the annotation "St Albans Extensions". This confirms conversion of the Abbey line to a MRT/busway requires MRT vehicles to take over the underpass from Station Road to the car parks, rendering the car parks inaccessible and therefore triggering redevelopment of Watford Junction.

The current Network Rail proposals for redevelopment of Watford Junction include adapting or rebuilding the underpass for the use of Mass Rapid Transit (MRT) vehicles. If the underpass can be adapted or rebuilt for MRT vehicles then we suggest it can be rebuilt or realigned for a rail connection, although this does require professional evaluation. This rail connection also triggers redevelopment of the station since the car parks become inaccessible.

If Watford Junction can be redeveloped to enable MRT vehicles to make use of the underpass, then it can be redeveloped for a new rail connection making use of the underpass.

The current plan by Network Rail i.e. for MRT envisages a covered bus station on Woodford Road and which is unpopular. Overall the plan was devised prior to the Covid pandemic and is a commercial proposition to capitalise on the land by the provision of offices. It essentially boxes in the station in 1960's-style thinking and also envisages closure of the rail sidings in the vicinity of platform 11 currently used by a concrete-batching plant also for storing an Abbey line train overnight.

Revised plans for redevelopment of the station to enable a new rail conection would reasonably be more adapted to a post-Covid situation. There is some opportunity to capitalise on the land, possibly with more of an emphasis on residential development rather than offices. It is not clear to what extent this would be self-financing. This is a key matter in assessing the capital costs for the proposal.

Redevelopment of the station to enable a rail conection might feature two station entrances, with buses serving one or other of the entrances. In this case, a covered bus station on Woodford Road would hopefully be avoided. It is possible that the sidings in the vicinity of platform 11 would be replaced by new sidings accessed via the Abbey line although we have made no attempt to identify a suitable location for such sidings.

The following illustrates the rail connection at Watford Junction. The Abbey line used to be served by platform 10 i.e. the centrally-located platform. The Abbey line would be reconnected to platform 10, then by means of a rebuilt or realigned underpass to the front of the station and run alongside the existing track to platform 1, connecting onto the London Overground (Lioness) lines. For the purposes of new track, we anticipate no new land purchase would be necessary.

Drawings (diagrammatic maps) are displayed full size for clarity.



Abbey line to Watford High Street

Source : openstreetmap.org © OpenStreetMap contributors

An online map of Watford Junction is available here (opens in new window or tab) Source : openstreetmap.org © OpenStreetMap contributors

Since drawing the illustration above, it has become apparent that there are buildings or infrastructure between the tracks and the rear of the houses on Woodford Road. Although thought to be railway land, we have no further information. It may be a signalling centre. The best option may therefore be to connect the Abbey line into the low-numbered platforms without a new track running alongside platform 1. Satellite imagery
https://www.google.co.uk/maps/@51.6623209,-0.3950418,221m/data=!3m1!1e3
and view from the other side of the line
https://www.google.co.uk/maps/@51.6636388,-0.3939894,3a,15y,195.28h,92.24t/data=!3m6!1e1!3m4!1swHTck8J1jnugkU52QqyWfA!2e0!7i16384!8i8192
also available in pdf format : Infrastructure to the rear of houses on Woodford Road (opens in new window or tab).

As an alternative to a rebuilt or realigned underpass connecting the Abbey line to the low-numbered platforms, there would seem to be the potential for a fly-over, by reference to the above online map, clicking on the link a second time if needed, zooming out and heading south. This would connect the Abbey line to the triangle of land bounded by railway lines and Radlett Road, this being an alternative means of connecting the Abbey line to Watford High Street. As a first estimate, there would be two elevated platforms at Watford Junction in the vicinity of the current Abbey line platform.

As an alternative, Mark E Townend has put forward a proposal for east west light rail at Watford via the Stephenson Way Viaduct. A copy is available at https://railenable.com/pdf/met_watford.pdf . From openstreetmap.org, it seems this could connect onto an existing siding running alongside the WCML main lines to provide a single-track link for light rail. There are two footpaths beneath the Stephenson Way Viaduct, one on either side of the watercourse. By means of bridges over the watercourse, these could be merged into one footpath beneath the viaduct, leaving an arch free for a dedicated light rail link, not requiring sharing with pedestrians or cyclists.

Courtesy of Google, view of two paths beneath the Stephenson Way Viaduct

https://www.google.co.uk/maps/@51.6564793,-0.3877978,3a,75y,21h,85.1t/data=!3m7!1e1!3m5!1sAF1QipM731tIlA1ECpiv6jjgdo-ZufBn0XWbDEHGPrcB!2e10!3e12!7i5376!8i2688

As a static image Two paths beneath the Stephenson Way Viaduct (photo opens in a new window or tab).

"Metropolitan Line Extension Alternatives" published by Steer, referenced earlier, refers to this light rail link in section 8.32 although connection on to the Abbey line is not illustrated. It has been specifically associated with "Rail Option 3". Why is it described as complex?

Mark has proposed a tram-train from St Albans Abbey to Rickmansworth. A copy is available at https://railenable.com/pdf/met_metropolitan.pdf . We have a slight reservation about this in that it would require track sharing between light rail, underground and conventional rail systems.

In terms of service, we will first consider conventional rail and then light rail. In terms of conventional rail, the most straightforward choice would seem to be to extend London Overground to St Albans Abbey presumably using Selective Door Operation due to short platforms on the Abbey line. The line is not suitable for upgrade to dual track in its entirety and therefore a service every 10 minutes is not considered to be practicable. We might anticipate a service every 20 minutes. The implication is that some Overground services would terminate at Watford Junction and some continue to St Albans Abbey.

In these revised circumstances the case for the Metropolitan Line Extension (Croxley rail link) would merit reevaluation. This requires a viaduct crossing the A412, River Gade and Grand Union Canal. Envisaged as extending the Metropolitan Line to Watford Junction, a rail connection at Watford Junction offers the possibility of an extension to St Albans Abbey. There is alternatively the future possibility of Oxford to Cambridge via Aylesbury, Watford Junction and St Albans Abbey.

In both these cases, London Overground to St Albans Abbey is in due course replaced by another service on the Abbey line, either the Metropolitan Line or a regional rail service such as Oxford to Cambridge, arising from implementation of the Croxley rail link. In either case, the service is routed via Watford High Street. London Overground would revert to the current arrangement terminating at Watford. As a result, we suggest passengers would do well to consider an extension of London Overground to the Abbey station as a means of extending the Abbey line service to Watford High Street i.e. two separate services London Overground to Watford and an extended Abbey line service to Watford High Street combined into one as an interim arrangement. There is no guarantee in the future of a direct service from London Overground stations south of Watford High Street to the Abbey station.

Alternatively, London Overground might be extended via a St Albans to Hatfield line to Welwyn Garden City and Stevenage. The Hertford East service might be extended via Watton at Stone also to Stevenage. These two services might be combined to form a single service from Euston to Liverpool Street via Hertfordshire, although we do not know whether this service would form part of Transport for London (TfL), an opportunity for a bunfight. Everyone loves a bunfight, which provides motivation for planning and implementing the service. We envisage trains would change direction at St Albans Abbey, at Stevenage and potentially also at Hertford East. To enable change of direction at Stevenage, a new platform 0 would be added.

Of all the possibilities we have considered excepting a direct service from the Abbey line on to the WCML e.g. to Euston, the infrastructure required for London Overground to St Albans Abbey forms a useful first stage.

Let us now turn to the possibility of light rail. The provision of a light rail service has considerable implications, for example a maintenance depot and would not be envisaged merely to provide a short service between St Albans Abbey and Watford High Street. A more substantial light rail network could be anticipated e.g. to London Colney.

In the other direction, we might anticipate light rail to Watford High Street and Watford's hospital. Zoom out on the above online map and head south west for details. This would require track sharing between light rail and conventional rail but not Underground trains.

The Abbey line is not suitable for upgrade to dual track in its entirety and therefore a light rail service every 10 minutes is not considered to be practicable. We might anticipate a service every 20 minutes. The light rail vehicles would be high capacity due to the service frequency. As a first approximation they would be akin to articulated conventional trains. They would share track with London Overground between Watford Junction and Watford High Street and would presumably be able to call at conventional platforms.

Tram lines are dangerous including for cyclists. We will never specifically propose a tramway nor support a proposed tramway unless it is segregated, without on-street running.

The following photos taken by Google streetview turning off Reeds Crescent provide a view from the east of the Abbey line train at Watford Junction platform 11. We suggest it could be appropriate to reserve the land in view for a light rail depot. As an interim arrangement, this land could be used for stabling facilities for conventional rail, hopefully including a train during the day that can be brought on to the Abbey line if the train in operation fails. Behind these photos is further railway land, although not rail-connected, including the Network Rail Watford depot welding store and car parks. A view from the east of Watford Junction and A further view from the east of Watford Junction . Further down the road returning to Reeds Crescent there is another view of the train at platform 11, again with railway land in the foreground. Given that the train was in the station throughout the visit by the Google streetview car it seems likely, sadly, that the train was out of service. Another view of the train at Watford Junction platform 11 (all open in new window or tab).

Hertfordshire - Essex Rapid Transit (HERT) will not be trams

Those who are skim-reading may wish to pass over this section.

As from March 2024, Hertfordshire County Council refers to buses as "trackless trams", reference provided in section "HERT converts the Abbey line to a busway". We will ignore this misleading terminology in this section.

As from March 2023 this section is historical. There is no longer any claim that HERT might be implemented as trams. The claim has been superseded. Updated information is in section "HERT converts the Abbey line to a busway". There seems to no longer be any reference to an east-west tramway on the Hertford Civic Society home page.

As noted in part three, a downgrade of the A405 between Watford and St Albans is planned with reallocation of 1 lane in each direction to buses only. This enables buses to compete with the Abbey line, the competition leading to closure of the line. As noted in part three section "The Abbey line is being undermined", from this we know that MRT vehicles will be rubber-tyred buses and not light rail trams, since trams require rails and no-one would propose rails along the A405 to be superseded by use of the Abbey line.

However, the A414 corridor strategy technical report ( Referenced papers and reports ) claims that the choice between rubber-tyred vehicles and trams has not been made. There are illustrations of trams on page 57.

In these circumstances it is reasonable to suggest that HERT is based on an illusion but with an outstanding question : on what foundation is the illusion based ? There was a proposal for an east-west tramway in south Hertfordshire from Watford to Hertford/Broxbourne. The proposal was by Hertford Civic Society (opens in new window or tab). At the time of originally writing this, the proposal was documented by links on the home page. Trams would provide a service every 10 minutes, requiring the tramway to be entirely dual track.

The proposal required reopening a dismantled line through Hertford and along what is now the Cole Green Way, also reopening the dismantled line from Hatfield to St Albans along what is now the Alban Way, both forming part of National Cycle Route 61. On approach to St Albans, the tramway would be routed via St Albans City station and then down Holywell Hill, which is steep, to St Albans Abbey station.

There seems to have been insufficient research prior to formulating the proposal. For example, reopening the former single-track line upgraded to dual track along the Alban Way would be disruptive in multiple places and the route is much appreciated for walking and cycling. The proposal assumed the Abbey line can be upgraded to dual track in its entirety, without investigation. It would also be extremely expensive. We are not opposed to the proposal, however would it actually be implemented ? We don't think so. In what seems to be a cynical move, Whitehall and the county council leveraged the Hertford Civic Society (HCS) proposal to create an illusion.

Some references : https://en.wikipedia.org/wiki/Alban_Way ; www.disused-stations.org.uk/n/nast_hyde_halt/ ; www.disused-stations.org.uk/h/hertford_north/ : particularly the paragraph "Present state". Reference can also be made to page 207 of the A414 corridor strategy technical report.

Additional information concerning the Abbey line. In general, much of the Abbey line has the potential to be upgraded from single track to dual track. There is a notable exception to this, from How Wood northwards until the approach to the Abbey station. At How Wood station, the terrain is flat to the south but not to the north. Opposite Park Street station is an embankment down to the River Ver. A third point of observation would be the Abbots Avenue West overbridge from which the railway cutting can be admired, alternatively, by travelling on the train. An additional noteworthy point is the bridge over the M25 located to the north of Bricket Wood and south of How Wood and which only accommodates single track.

A St Albans to Hatfield conventional rail line via London Colney, as proposed by ourselves, is modest in comparison with a Watford to Hertford/Broxbourne tramway. Moreover trams sharing track with conventional rail between St Albans and Hatfield via London Colney might make business sense. However a St Albans to Hatfield conventional rail line is not an option under consideration for HERT. It is an alternative to HERT.

To the best of our knowledge no alternative tramway has been proposed. Therefore we know that HERT will not be trams. HERT is a proposal for rubber-tyred vehicles.

HERT converts the Abbey line to a busway

HERT is a proposal to provide a high-frequency bus service Watford to Harlow, also Hemel Hempstead to Harlow, as illustrated below.



HERT map

Could a high-frequency bus service Watford to Harlow put the Abbey line at risk of closure? Could buses compete and thereby cause closure of the line?

Let us consider Hertfordshire County Council's South West Herts Growth and Transport Plan July 2018. This is available here : Referenced papers and reports


South West Herts 2018 Growth and Transport Plan package 4

Package 4 on pages 25 and 26, illustrated above, considers the St Albans to Watford corridor. On page 25, ref SM16b includes a planned downgrade of the A405 with reallocation of 1 lane in each direction to buses only. This enables buses to compete with the Abbey line. Most unfortunately, the document creates a misleading impression by claiming at the top of page 25 "The overarching aim of Package 4 is: To maximise the potential of the existing Abbey Line as a rail route by ..."

If buses compete with the Abbey line then it will close. To confirm this, we can ask what plans are in place for the Abbey line. To do this, let us consider the A414 corridor strategy technical report. This is available here : Referenced papers and reports

The relevant pages are 112 to 118. There are inconsistencies on these pages. Page 118 includes "A new transport interchange associated located adjacent to the A414 and Abbey Line, needs to be well connected with its surroundings. Access will need to be gained by road via the A414, and hence a new junction on the A414 will be required." However this new junction is neither illustrated on page 114 nor on page 117.

Moreover, the South West Herts Growth and Transport Plan July 2018 illustration above includes a "Park and Rail" hub, known to the rest of us as a railway station. This also is neither illustrated on page 114 nor on page 117. In this case, the reason seems to be that there is insufficient space for a new railway station and therefore there never was any intention to build it.

The A414 corridor strategy technical report includes a new junction on the A414 but this has been concealed, included on page 118 but nowhere illustrated. The idea is to build the infrastructure associated with conversion of the Abbey line to a busway for HERT vehicles i.e. connecting on to the A414 whilst claiming that something else is being built, also known as deception.

A note regarding terminology. HERT vehicles are Mass Rapid Transit (MRT) vehicles.

In June 2021 Steer published "Metropolitan Line Extension Alternatives". This is available here : Referenced papers and reports

On page 116

"9.40 The A414 is a dualled road running from the A41 west of Hemel Hempstead all the way to Chelmsford. This road is characterised by high congestion levels.
9.41 However, the A414 is the key route between Watford – St Albans and Welwyn and has been identified by HCC as a potential route for MRT."

This identifies a design flaw in the MRT proposal. There is no proposal for MRT vehicles to be routed anywhere other than via the A414. As a result, either (choice 1) the A414 is downgraded to permit MRT vehicles to run on a dedicated bus lane, in which case congestion on the A414 is likely to increase, or (choice 2) they share the A414 with other vehicles. In the second case, they are likely to be subject to delay due to congestion, resulting in the entire MRT project being at risk of failure.

As from March 2023, a proposal is being researched : Sharing road space between HERT and driverless cars (opens in new window or tab). The idea seems to be that HERT vehicles run in a segregated lane with driverless cars i.e. not intended to suffer congestion. This still serves to make congestion worse in the other lane.

Some years ago a trial bus service ran between St Albans Abbey and St Albans City stations. It was not a financial success and was withdrawn. However there was no publicity, which suggests the failure could have been anticipated. Moreover there was and is the 724 green line between the two stations.

From intalink.org.uk there is no bus service between Hemel Hempstead and Harlow without one change or more. Nevertheless HERT proposes a high-frequency service between these two towns. The failure of such a service can be anticipated. The remaining service Watford to Harlow doesn't get stuck in traffic but causes greater congestion than there would otherwise have been in the other lane of the A414. Reduced road capacity serves to undermine Hertfordshire's competitiveness.

HERT uses deception to disguise a plan to close the Abbey line and convert it into a busway. It reduces capacity on the A414 thereby undermining Hertfordshire's competitiveness. HERT needs to be abandoned.

As from March 2024, the plan is no longer disguised. Hertfordshire County Council Highways and Transport Cabinet Panel agenda pack for meeting on 12 March 2024 includes a HERT update, page 259 onwards. The plan to convert the Abbey line to a busway is highlighted on page 267 section 9.8. The document refers to buses as "trackless trams" which is unhelpful and misguided. The document is available here : Referenced papers and reports

Further information : A review of Hertfordshire - Essex Rapid Transit (HERT) (opens in new window or tab).

HERT public engagement not properly conducted

Hertfordshire - Essex Rapid Transit (HERT) was subject to a public engagement, i.e. consultation, from November 2021 to January 2022. Our response to the public engagement is referenced in part three section "A review of Hertfordshire - Essex Rapid Transit (HERT)".

It has now become apparent that the public engagement was not properly conducted. Reasons for this are listed here.

1. The true costs of HERT are hidden. This is documented in our response to the public engagement referenced in part three section "A review of Hertfordshire - Essex Rapid Transit (HERT)". For example, the true costs include the cost of redeveloping Watford Junction.

2. The public engagement claimed that HERT could be implemented as a tramway. This was shown to be false in earlier section "Hertfordshire - Essex Rapid Transit (HERT) will not be trams". Hence HERT creates an illusion for those who are in favour of rail-based travel.

3. HERT is a disguised proposal to convert the Watford Junction to St Albans Abbey line into a busway. This point is summarised earlier in section "HERT converts the Abbey line to a busway".

4. HERT includes an exercise in smoke and mirrors since Hertfordshire County Council claims to be lobbying Whitehall when in fact there is purely cooperation, if not submission. This point is made in part three section "The Abbey line is being undermined".

5. HERT bypasses the processes of democracy, although we suspect this is common also to other Whitehall plans. Firstly, Hertfordshire county councillors (Westminster MPs?) are being briefed to simply play Whitehall's game by being told that the council is lobbying Whitehall, reference the previous point. Secondly, Hertfordshire county councillors believe their policy for the Abbey line is being implemented, when in fact their own officers seem to be under marching orders from Whitehall : this point is made earlier in section "The Croxley Rail Link is not dead".

6. Misleading information was published prior to the public engagement. Two months beforehand, the September 2021 issue of Modern Railways included an article on the Abbey line. With lots of pictures of trains, it gave the impression that the line has a secure future, but made no mention of the plan to convert the line into a busway. For those with a subscription to Modern Railways, the article is https://www.modernrailways.com/article/abbey-flyer-prays-passing-loop

7. HERT undermines an improved east west rail network and therefore undermines the economic growth of the Oxford to Cambridge arc as a whole. This point is made in part three section "A review of Hertfordshire - Essex Rapid Transit (HERT)".

8. HERT is the result of plans made over a number of years on the assumption that east west rail in Hertfordshire is not feasible. Our research calls this assumption in to question. HERT needs to be replaced by a new proposal that brings a St Albans to Hatfield conventional rail corridor in to scope.

We compiled this list with ease, which suggests there are probably further reasons.

Abbey line existing infrastructure

For reference, we provide a diagrammatic map of the existing Abbey line infrastructure.

Abbey line existing infrastructure

 

Abbey line future infrastructure

In this section we discuss possible future infrastructure for the Abbey line. There are no specific proposals in this section.

There is the possibility of east west rail at Watford Junction. If not, east west travel with implementation of the Metropolitan Line Extension or Croxley rail link by changing trains at Watford Junction. There is the possibility of direct services on to the WCML. There is the possibility of extension of the line to London Colney.

A service on the line could be Watford - St Albans every 30 minutes or every 20 minutes, or Watford - St Albans - London Colney every 30 minutes or every 20 minutes. Taking account of the leaf fall period and of recovery from late running, these various possibilities would require infrastructure upgrade.

Potential infrastructure upgrades illustrated below include :
(i) two platforms at Watford Junction with dual track at least part way to Watford North;
(ii) a passing loop between Watford North and Garston;
(iii) a dual track section or at least a passing loop between Garston and Bricket Wood;
(iv) facility for trains to pass at Bricket Wood - discussed for many years although not illustrated below;
(v) facility for trains to pass at How Wood or in the vicinity;
(vi) two (or more) platforms at St Albans Abbey, bringing a disused platform back into use and possibly lengthening it;
(vii) re-opening the head of the former line from St Albans to Hatfield potentially as single track passing over the river Ver, becoming dual track on heading southwards towards London Colney.

Regarding a dual track section or at least a passing loop between Garston and Bricket Wood, the M1 bridge permits dual track. However on approach to Garston from here construction of the line featured earthworks and which we think would not permit dual track. So dual track in the immediate vicinity of the M1 bridge would seem to be feasible but not further southwards towards Garston. In the other direction, we do not know what the obstructions for dual track to Bricket Wood station would be. The Mount Pleasant Lane bridge does not permit dual track.

 

Service every 30 minutes to St Albans Abbey

We have proposed a train passing facility at How Wood or in the vicinity, rather ironically possibly the only item on this list that requires land purchase. The proposal is in part three : Trains passing at How Wood and ticket checks at the Abbey station . The two trains pass at How Wood or vicinity with more time available to change ends at the Abbey station than at Watford Junction. In the event of late running there may not be sufficient time for a journey to Watford Junction and back, potentially leading to a shortened service from St Albans Abbey to Bricket Wood, Garston or Watford North and then return. At some future point, planning may be undertaken for the various possible services listed earlier e.g. a service every 20 minutes Watford - St Albans or Watford - St Albans - London Colney with associated infrastructure upgrades specifically designed. At this point, an interim arrangement could be to implement a subset of the infrastructure to permit recovery from late running of a Watford - St Albans service every 30 minutes without service shortening. The means to achieve this would be a second passing loop on the line. During normal operation, trains pass at How Wood or vicinity. During recovery from late running, trains pass using the second passing loop. We have illustrated this by selecting a dual track section or at least a passing loop between Garston and Bricket Wood i.e. coloured blue with all other future infrastructure coloured green.

Bicester to Aylesbury

Oxford to Cambridge via Watford Junction would require a connecting chord Bicester to Aylesbury.

As a first approximation, this might follow the route of the former Metropolitan Railway (openrailwaymap.org) from Verney Junction, turning southwards past East Claydon Substation and Hogshaw connecting into Golding Spring Central. Ideally a south-to-east chord from this would serve Aylesbury to Winslow and Bletchley, replacing what seems to be the planned route alongside High Speed 2 and thereby a shorter route for Aylesbury to Bletchley.

For Bicester to Aylesbury, this avoids Calvert Jubilee Nature Reserve at Calvert Junction.

Oxford to Cambridge via St Albans

Here we will discuss options for an Oxford to Cambridge service via St Albans.

East west rail in Hertfordshire and environs

It should be borne in mind that our diagrammatic maps are intended to illustrate railway infrastructure and are not to scale.

The first option involves less infrastructure enhancements than subsequent options. A train from Oxford changes direction at Bletchley, continuing to Watford and Watford South Junction, which is signalled for trains to change direction. Entering the Abbey line, the train continues via St Albans City, Luton Airport Parkway, Luton and Bedford to Cambridge. This would not make use of the Bletchley to Bedford line. There would be two Abbey line platforms at Watford Junction and services would presumably not call at the main line platforms. It has to be admitted that this route is circuitous.

The primary infrastructure enhancement to enable this is Watford Junction to St Albans City. If Radlett Strategic Rail Freight Interchange (SRFI) i.e. freight terminal as proposed on the former Radlett airfield site does not proceed, the means to achieve this is to reopen the dismantled link historically known as the link at Napsbury, coloured red on our diagrammatic map. Otherwise, by changing direction at St Albans Abbey, coloured blue. In this case trains would change direction at three locations Bletchley, Watford South Junction and St Albans Abbey and this would not be regarded as anything other than an interim proposal.

A variation of this would be via a St Albans to Hatfield line. The route would be to change direction at Bletchley, at Watford South Junction also at St Albans Abbey then via London Colney and Hatfield.

Alternative options might be listed in any order. With a Bletchley to Luton connecting chord, illustrated above and known as the Stewartby chord, we might anticipate a service between Oxford and Cambridge via Bletchley, Luton and Luton Airport Parkway, St Albans City, London Colney, Hatfield, Welwyn Garden City, Stevenage, Hitchin and Letchworth. This would require a St Albans to Hatfield line. This service does not change direction.

A variation of this service would be to change direction at Bedford.

The remaining options listed here require east west rail at Watford Junction, specifically connecting Rickmansworth to St Albans Abbey. They also require a chord from Bicester to Aylesbury (not illustrated).

For a service via St Albans City, if Radlett freight terminal does not proceed, with the link historically known as the link at Napsbury, an Oxford to Cambridge service could operate via Aylesbury, Rickmansworth, Watford Junction, St Albans City, Luton Airport Parkway, Luton and Bedford. Otherwise by changing direction at St Albans Abbey, coloured blue. This would not make use of the Bletchley to Bedford line nor require a St Albans to Hatfield line.

A service between Oxford and Cambridge, not via St Albans City, could operate via Aylesbury, Rickmansworth, Watford Junction, St Albans Abbey (change of direction), London Colney, Hatfield, Stevenage and Letchworth not requiring paths (space/time slots) on the Midland Main Line. This would not make use of the Bletchley to Bedford line. It would require a St Albans to Hatfield line.

Options for changing direction at Stevenage to be routed via Ware have not been included. There are probably three routes for this : via Aylesbury or changing direction at Bletchley or via Bedford, Luton and Luton Airport Parkway. Of these, the first is the most strategically interesting since it provides an alternative to Hertfordshire - Essex Rapid Transit (HERT) by connecting Rickmansworth to Harlow. The route is Oxford, Aylesbury, Rickmansworth, Watford Junction, St Albans Abbey (change of direction), London Colney, Hatfield, Welwyn Garden City, Stevenage (change of direction, best achieved by means of platform 5 and a new platform 0), Watton at Stone, Ware, Harlow Town, Cambridge. This is much slower than Oxford to Cambridge via Bedford and Tempsford but serves centres of population.

The significance of any of these services is that it provides good town-to-town and town-to-city connectivity in the region, bearing in mind the market is understood to be limited for direct travel between the cities of Oxford and Cambridge.

Oxford to Cambridge via Watford Junction

This section lists options for an Oxford to Cambridge service via Watford Junction that weren't included in the previous section Oxford to Cambridge via St Albans.

If Radlett freight terminal does not proceed, by means of the red-coloured line connecting Watford Junction to London Colney, we have an Oxford to Cambridge service changing direction at Bletchley, at Watford South Junction then via London Colney and Hatfield.

Alternatively Aylesbury, Rickmansworth, Watford Junction, London Colney and Hatfield.

There is a crossing from the London Overground (Lioness) lines to the WCML at Watford Junction. This provides us with a route Aylesbury, Rickmansworth, Watford High Street, Watford Junction, Bletchley, Bedford, Cambridge.

Opposing the reduction in service frequency on the Abbey line

The service on the Abbey line used to operate every 45 minutes, albeit hourly on Sundays and with a journey time of 16 minutes : Abbey line timetable 15 May - 10 December 2022 (opens in new window or tab).

Service frequency on the line was reduced as from 11 December 2022. This was announced at a "Stakeholder conference" https://www.dec22timetablechange.co.uk/ and documented in West Coast Mainline December 2022 Timetable changes by route (opens in new window or tab). By searching this document for Abbey, the following is found "45 minute service Abbey Line during peak, hourly off peak".

The train operating company London Northwestern Railway (LNwR) provided details in a presentation Abbey line timetable options (may result in document being downloaded).

When the service operated every 45 minutes, there were 5 minutes to change ends at St Albans Abbey and 8 minutes at Watford Junction. However, on slide 3 of their presentation, London Northwestern Railway (LNwR) states that the timetable was too tight and therefore they wished to reduce service frequency. This used to be one of the most reliable train services in Britain. The line has not changed over the intervening years although the campaign to secure the future of the line has lost momentum in recent years. The implication is that, with an active campaign for the future of the line, the service will be reliable, this in itself casting doubts on the LNwR claim that the timetable was too tight. Therefore the justification for reducing service frequency was questionable.

To assess the LNwR claim that the timetable was too tight, we can compare the Abbey line with the Thames Valley branch lines. Firstly, the service between Windsor & Eton Central and Slough. This is provided by a single train with a journey time of 6 minutes, 5 minute turnaround at Slough and 3 minutes at Windsor, resulting in a cycle every 20 minutes. This is tighter than the Abbey line with a 45-minute frequency. There is no intermediate station, but this is not a factor since the dwell times on the Abbey line at the intermediate stations is ample. Later, point 5, we will theorise that the Abbey line timetable could be considered to be tighter at peak times than off-peak, although this is only theoretical : we understand the dwell times at intermediate stations would happily accommodate a significant increase in passenger numbers until the point was reached where not all passengers were able to board the train due to crowding, unlikely on the Abbey line.

Secondly, the service between Henley-on-Thames and Twyford. This is provided by a single train with a journey time of 12 minutes and 3 minute turnaround at either terminus, resulting in a cycle every 30 minutes. This is tighter than the Abbey line with a 45-minute frequency. It seems the timetabled 5 minutes from Shiplake to Henley can be achieved in 3 minutes which would result in a turnaround time of 5 minutes, nevertheless the Abbey line was no tighter than that, not least since the timetable in both directions on the Abbey line seems to include an extra minute or so from the last intermediate station to the terminus. Interestingly, on 09 September 2022, the 06:05 from Henley departed 11 minutes late. Each journey and each turnaround saved at least 1 minute until the 07:21 from Twyford departed on time.

Thirdly, the service between Marlow and Maidenhead. This is complicated by the fact that early in the morning there are two services Marlow to Bourne End and Bourne End to Maidenhead. In this early morning period, the turnaround time is 3 or 4 minutes at Bourne End and 4 minutes at Maidenead. Later, a direct service between Marlow and Maidenhead features a 3 minute turnaround at Marlow. All of these are tighter than the Abbey line with a 45-minute frequency.

Comparing the Thames Valley branch lines with the Abbey line with a 45-minute frequency casts further doubts on the LNwR claim that the Abbey line timetable was too tight.

In passing, we note that contactless ticketing is being implemented on the Thames Valley branch lines. A same decision on the Abbey line would be beneficial, not only for the convenience of passengers but also we would hope to reduce free travel.

Some reasons for opposing the reduction in service frequency :

1. The impact of service cancellation is greater when the service frequency is every 60 minutes.

2. It is likely that there is greater revenue from a service every 45 minutes than a service every 60 minutes i.e. more passengers.

3. Although a "clock face" timetable i.e. every 60 minutes is easier to remember, most passengers have access to information that enables them to consult the timetable.

4. Most passengers on the line are local. Although a significant number continue onwards to Euston, this is almost certainly less than half of overall passenger numbers. It is a little awkward to dovetail a 45-minute frequency service on the Abbey line with a hourly service on the WCML, nevertheless there are practices that have been established over the years. No recasting of the WCML mainline timetable should be encouraged that would downgrade connection times for passengers between the Abbey line and Euston. There are also a limited number of passengers who travel on the Abbey line to WCML destinations further north.

5. The current arrangement is to reduce service frequency to every 60 minutes off-peak whilst maintaining a service every 45 minutes at peak times. There is a lack of logic here since there are more passengers at peak times, therefore the service, if it is tight at all, is tighter at peak times than off-peak. The proposed hybrid (LNwR presentation option 3) having been accepted, LNwR will in due course "observe" that the service is reliable off-peak but not during the peaks, so the proposal will be followed by a further proposal to reduce the service frequency to hourly at all times.

6. Hertfordshire County Council's South West Herts Growth and Transport Plan July 2018 is available here : Referenced papers and reports . On page 25, ref SM16b includes a planned downgrade of the A405 with reallocation of 1 lane in each direction to buses only. This enables buses to compete with the Abbey line. Reducing service frequency on the Abbey line downgrades its competitiveness in comparison with buses. Additional note : In part two section "England's Economic Heartland" we noted the reference in Pasenger Rail Study Phase One on page 63 to the Abbey line. This referred to the maximum line speed and the frequent stopping pattern however it is clear that a service frequency of every 45 minutes is already a factor and can only be further aggravated by reduction in frequency to every 60 minutes.

7. In June 2022 it was announced that the bid for a passing loop at Bricket Wood, enabling a more frequent service than currently operates, was rejected by the Department for Transport (DfT). However we have proposed trains passing at How Wood or vicinity and which has not been evaluated, (part three section "Trains passing at How Wood and ticket checks at the Abbey station"). We would suggest the correct approach would be to evaluate this, not reduce service frequency.

The reduction in service frequency is in the context of HERT, which is a high-frequency bus service. Could it be that the reduction in frequency has been prompted by DfT and is no more than a step towards closing the line?

 

This article has provided part four of our review into travel in the Oxford to Cambridge arc.

For those who have not done so, it is recommended to read the home page and then to read part three starting at the section "Impact on the Alban Way" Impact on the Alban Way through to the end.

Part three (from the start) : Oxford to Cambridge : east west rail in Hertfordshire

Change control: there may be minor updates to diagrammatic maps without reference to this in the text.

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