Saturday 21 July 2012

Ultra Light Rail - Another transport option?

Ultra Light Rail - Wildly idealistic, or sustainable way to keep open/
re-open lesser used branch lines in Wales?
(Pic : Wikipedia)

When you think of "railway", you probably think of the standard heavy rail network between major population centres. You probably won't include trams under the same umbrella, and will write-off the narrow gauge railways as "something for tourists".

Are we too hung up on our railways meeting a certain standard to be categorised as such? Is there an opportunity for Wales to take a different path in the future?

Swiss railways, for example, consists of standard gauge, narrow gauge and tram railways - all part of an interconnected network, with each part serving its own function in its respective community.

What is "Ultra Light Rail"?

The Sustainable Travel Company and Parry People Movers Ltd have carved out niches for themselves by developing a series of lightweight self-propelled "tram trains", dubbed "Ultra Light Rail".

They are designed to run either on their own track (like trams) or even on standard heavy rail. Some of these vehicles are being used on parts of the UK rail network - in Stourbridge for example (photo above). They can even - possibly - be adapted to street-running.

They're designed to carry generally the same number of passengers as a small tram, but not as many as a mainline train or a tram system in a major built up area. It could be considered – in shorthand – a light rail system for rural areas and smaller towns.

Where could Ultra Light Rail (ULR) fit in?

Wales has three different types of railway, as I can see:
  • CoreMainline services (north Wales, south Wales mainline) and heavily-used commuter services (Valley Lines).
  • Branch – Connecting, lesser used and community/rural services (for example Llandudno-Blaenau Ffestiniog, Heart of Wales Line)
  • Mothballed – Freight-only and disused lines that could be reopened (i.e. Pontyclun-Beddau, Aberdare-Hirwaun, Llangefni)

ULR could become a new category for railways – a halfway house between traditional heavy rail and tram-based light rail. To do something like that though would either require the devolution of rail regulatory powers, or independence. It would have its advantages and disadvantages.

For example, ultra light rail could have relaxed regulations for track and station standards, which could help keep maintenance and running costs down – and more crucially help keep some lesser-used branch lines open.

However, that could also be considered a safety risk or lead to poorer standards of service than normal railways.


These could be the main features:
  • Self-propelled vehicles – Fuel cells, flywheels etc. No need for large-scale electrification.
  • Modular stations – Which could consist of a very basic platform, with DDA access wherever necessary.
  • Simpler signalling systems – In some cases perhaps reduced to a simple "stop" or "go", but this would likely mean slower permissible line speeds.
  • Only used on connecting branch railways - To free up space for extra mainline services
  • Street-running adaption – Becoming a more formal "tram train".

How could these systems be run?

Financial viability is a key consideration for any project like this, and for now, none of these are likely to be viable by themselves. However, there are alternatives:
  • Municipal-owned/partnered transport companies – A return to regulated public transport in local authorities/regions, with bus, light rail and ultra light rail services coming under the control of arms-length companies, possibly run on a not-for-profit model.
  • Community rail partnerships – Just like existing schemes, but with some of the functions (track maintenance etc.) being run by volunteers and apprentices.
  • Subsidised through general taxation – Many of the communities that would benefit from this are distant, and fixed transport connections would provide greater social and employment opportunities.
  • Subsidised through hypothecated taxation – Congestion charges, car parking levies, emissions charges, a precept on Council Tax (like a police or fire authority would).
  • Voluntary contribution – For example, retail parks, business parks, voluntarily contributing towards the costs of building stations for/near their premises.

An exemplar ULR network

Like my look at cycling, I've decided to look at a possible ULR network for Bridgend. This isn't a serious proposal, just an example of how it might work. Here's a schematic for a potential ULR system, based on the existing Maesteg branch line, and the disused Garw and Ogwr valley lines.

A theoretical Ultra Light Rail network for Bridgend county -
not to be taken too seriously, just to illustrate the potential.
(Click to enlarge)


This network uses the existing Maesteg branch, extended northwards to Caerau (it would now be impossible to send it through to Cymer and Glyncorrwg, which is a shame), alongside the partially disused Garw branch (currently earmarked for development as a heritage railway), and the completely removed Ogwr valley branch. The Ogwr branch is now a cycle path, but it should be pretty easy to rebuild cycle paths next to the rails, separated by a robust fence, and continuing to encourage cycling and walking.

As a "money no object/not serious" idea, if it were possible, the ULR network could be extended south of Bridgend, momentarily sharing the Vale of Glamorgan line, then swinging outwards, south of Island Farm and Broadlands, before joining the Porthcawl road, and becoming a street-running service into the centre of Porthcawl. The cost and environmental implications of such a thing are likely to be prohibitive - even for wildly idealistic people like myself.

This wouldn't be designed to replace mainline services, just provide a lightweight, low-cost way of feeding into mainline services, as well as maintaining local, lesser-used community railways. If anything, it would supplement = and possibly be an eventual replacement for - existing bus services.

For example, any Bridgend network would free-up space on the South Wales Mainline for additional services in place of the current Cheltenham-Maesteg service. Passengers from the Bridgend Valleys would (ideally) be able to buy through-tickets (or use pre-paid cards, harking back to my post The Welsh Metro last year), changing at Bridgend station.

There are possible other places in Wales this approach could be used:
  • Pontyclun to Beddau (and possibly Ely Valley)
  • Swansea to Onllwyn & Blaengrawch
  • Llandudno to Blaenau Ffestiniog
  • Wrexham to Mold
  • Bangor to Caernarfon

This won't be an ideal solution for every situation, but if it allows greater connectivity between some of our more isolated communities – as it has done for the Swiss – then perhaps it's worth keeping it as an option on the table for the future.

11 comments:

  1. It certainly has legs, I would throw one other means of transport into the mix, Trollybuses. They have the advantage of not needing track and give quiet and fast acceleration. Ideal for replacing buses in built up areas on arterial routes.

    The fact is that we need to expand public transport, with a range of options for different circumstances. Reopening old freight lines to trams and in some cases replacing heavy rail by lighter trams makes sense. Your local network looks a well imagined thought exercise and should not be dismissed lightly. In the 1970s Sheffield and more generally South Yorkshire benefited from an excellent and very cheep network of buses, it saved the local authority a fortune in building expensive urban motorway type roads and reduced the need for people to run cars.

    If we are serious about climate change we have to get people out of their cars and an attractive, comfortable and cheep public transport system is what is needed.

    I's start by re-regulating buses, creating an all in one travel card to be used on every mode of public transport and encourage integration.

    The whole structure does not need to be owned by one body, but I would use regional bodies (see my post on regional government) as the basic transport coordinating/planning body. South Wales brakes down nicely into three regions, centred on Swansea, Cardiff and Newport. Id tend to put Bridgend in the Swansea one.

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  2. Thanks, Cibwr.

    Trollybuses would be ideal in some parts of Wales, in particular Swansea and maybe Cardiff and Newport too as well as the major Valley towns. It's just the thought of putting all those wires up that might put some local authorities off considering the idea. I think the Uni. of Glamorgan developed a hydrogen-powered bus a few years ago, maybe more regular buses could be converted to fuel cells.

    I think some sort of travel card/turn up and go system that can be used across public transport modes (perhaps even taxis) is absolutely essential. "Exact change" is a phrase needs to be consigned to the history books.

    I wouldn't at all be surprised if the mooted "City Regions" will evolve the likes of SEWTA into Manchester and London-style regional transport authorities.

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  3. as long as its not like edinburgh

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  4. If we're serious about Climate Change? Been happening for 4.6 Bn years so wouldn't get too excited about that. We have a couple of centuries of fossil fuels remaining and have many renewable energy sources to replace them, so what's the real energy issue?

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  5. Climate change is a reality, and we are contributing to it, that is fairly much established. Electric transport is more energy efficient than diesel or petrol driven transport, causes less wear and tear on rails and generally is better for the environment. You may not agree that climate change is, at least, in part caused by humans, but the scientific consensus is that it is.

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  6. An existing line that could be converted first is the northern half of the Rhymney Valley line up to Rhymney. Not heavily used, and I'm not sure how they can justify electrification all the way up to the terminal.
    They could create some sort of hybrid train for the purpose, that can be used normally on any other electrified Valleys line, but which can be changed to a lightweight mode for the upper half beyond Bargoed.

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  7. Or, perhaps, the Cardiff Bay branch. What a perfect test of light rail for Wales that would be, and very much like the Stourbridge branch you mentioned. And it could be mixed in with the future electrification scheme very easily I'd say.

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  8. Thanks for the extra comments all.

    Tony Cymro & Cibwr - If we're going to have electrification, we're going to have to ensure that those energy supplies are provided by renewables (or other forms of energy like hydrogen) otherwise it's a waste of time. The only question is where those "cleaner" energy sources are going to come from. Until the Welsh Government decide they want to take more responsibility for energy, it'll be decided from London.

    David - You never know what's going to be required in the future, that's why many of these branches are kept open I imagine. It makes sense to electrify them all in one go than bit-by-bit, or leaving some bits uncovered.

    I agree 100% that the Cardiff Bay branch would be perfect to test this, and if money were no object, perhaps small sections of street-running in Cardiff Bay itself, but that's not needed really.

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  9. The original plans for Cardiff Bay had the embankment between Bute Street and what became Lloyd George Avenue demolished, and the plan was to have the train run on rails in the central reservation of the new dual carriage way to the bay. This was rejected by developers because it would "interdict too much development land". The true reason (local residents suspect) was to keep the old Tiger Bay safely restrained behind the wall of the embankment.

    The cardiff bay line should be extended as a light rail option to the New BBC studios.

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  10. Railfuture have mentioned using tram trains to Porthcawl using the Tondu - Margam branch to Parc Slip before using the old track ed of the lynfi tramway to Kenfig Hill then the track bed of the Cefn Cribwr Junction - Pyle branch to join up with the mainlin to just before Pyle station then via mixture of on street running to Nottage and Porthcawl.

    Of course there is a doctors surgery in teh wya in Kenfig Hill but a lot of the route is still intact as a cycle way etc

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  11. Thanks, Anthony.

    Using the Tondu-Margam branch would be much easier than a line south of Bridgend itself. The only problem with that is that I'd guess the major trip attractor would be Porthcawl to/from Bridgend, which would almost certainly require a direct route. I doubt there would be enough capacity to use the mainline from Pyle to Bridgend.

    I think you could use the Tondu-Margam branch for tram trains to/from Port Talbot though.

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