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Improving the Severn Beach Line.

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zwk500

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The station is attracting large amounts of commuter traffic these days due to a large proportion of offices now based in the area. It needs some sort of electric traction though as diesel fumes in the middle of a large city run between houses and suburbs regularly. Looking most likely that it will be BEMU's at this rate with no OHL. The temple quarter regeneration should also have a large impact on the passenger numbers. I don't know the last time you visited the area but it's rapidly growing with offices, flats and mixed use developments popping up everywhere.
Indeed. The re-wire of Temple Meads station needs to be complete before OLE can go in, but WECA and NR have definitely started looking at wiring the Filton Bank. As you mention, battery looks more likely for the Severn Beach line, presumably partly due to the 2 tunnels (Montpelier and Clifton Down) close to the platform ends.
 
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AndrewE

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Indeed. The re-wire of Temple Meads station needs to be complete before OLE can go in, but WECA and NR have definitely started looking at wiring the Filton Bank. As you mention, battery looks more likely for the Severn Beach line, presumably partly due to the 2 tunnels (Montpelier and Clifton Down) close to the platform ends.
is this a problem? I can think of loads of stations with tunnels at the platform ends, including "underground"/metro services which have OLE!
The Cinque Terre station platforms seemed to be the only bits not in tunnel! a train is at the platform in https://www.google.com/maps/place/V...try=ttu&g_ep=EgoyMDI0MTAwNy4xIKXMDSoASAFQAw==
 

zwk500

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is this a problem? I can think of loads of stations with tunnels at the platform ends, including "underground"/metro services which have OLE!
Not necessarily - however the proximity of tunnel to platform can cause issues if you need/want to lower the track through the tunnel for OLE clearance. Plenty of solutions available of course, although comparison to lines designed for OLE, or using completely different systems, isn't really relevant.
 

Pat31

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Indeed. The re-wire of Temple Meads station needs to be complete before OLE can go in, but WECA and NR have definitely started looking at wiring the Filton Bank. As you mention, battery looks more likely for the Severn Beach line, presumably partly due to the 2 tunnels (Montpelier and Clifton Down) close to the platform ends.
Yes, I hope that by the time the canopy work over TM is done then WECA and NR have found funding routes for the FB, last time I read there was a shortfall of funding. Given the current financial situation I'm not expecting anything to be announced soon though haha. Now the east junction is reconfigured as well there's not much infrastructure wise to stop wires, still unsure if the intention to insert a new platform 0 is possible though? Yeah BEMU seems sensible for SB line given the cost and the emergence of battery technology and fast charge tech.
 

lachlan

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Yes, I hope that by the time the canopy work over TM is done then WECA and NR have found funding routes for the FB, last time I read there was a shortfall of funding. Given the current financial situation I'm not expecting anything to be announced soon though haha. Now the east junction is reconfigured as well there's not much infrastructure wise to stop wires, still unsure if the intention to insert a new platform 0 is possible though? Yeah BEMU seems sensible for SB line given the cost and the emergence of battery technology and fast charge tech.
Hadn't heard about a platform 0 - where was that going to go?
 

AlastairFraser

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I think that’s quite feasible for a neglected branch line that has the potential to become a frequent urban commuter line.
Indeed, especially as some of the industrial land in the Avonmouth area (and further north, towards Severn Beach) would be ripe for housing to relieve Bristol's severe housing crisis.
Is that even realistic, yet alone needed? The current 2 tph service (at least as far as Avonmouth) is the best service that the line has had for a long time and is probably adequate, as Bristol Temple Meads is very poorly sited for attracting passengers travelling to the city centre from suburban stations on the line. The only way that local rail-based transport could make a major inroad into transport modal share within Bristol, as distinct from tinkering around the edges, would be to construct an underground metro system, and the cost of such a scheme would be completely unaffordable for the UK. As for light rail, there really aren't suitable routes/alignments - the former Bristol tramway system was quite archaic, in terms of layout yet alone the open-top cars, by the time it closed due to enemy bombing damage in WW2.
I know you like to reject every railway improvement plan ever, but Bristol's railways are the only mode that could penetrate the city centre or close at a reasonable price, AND provide a lot of potential options for expansion.
If we really want to improve public transport in the region, a mixture of the plan I described with several additional large park and ride stations outside Bristol (plus one or two tram lines) is the only way to get a significant amount of cars off Bristol's overcrowded roads AND support the city's growth.
 

lachlan

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Thanks for that - too bad that new entrance design hasn't happened yet as it's pretty bad at the moment.
 

Mgameing123

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Is that even realistic, yet alone needed? The current 2 tph service (at least as far as Avonmouth) is the best service that the line has had for a long time and is probably adequate, as Bristol Temple Meads is very poorly sited for attracting passengers travelling to the city centre from suburban stations on the line. The only way that local rail-based transport could make a major inroad into transport modal share within Bristol, as distinct from tinkering around the edges, would be to construct an underground metro system, and the cost of such a scheme would be completely unaffordable for the UK. As for light rail, there really aren't suitable routes/alignments - the former Bristol tramway system was quite archaic, in terms of layout yet alone the open-top cars, by the time it closed due to enemy bombing damage in WW2.
2 tph is terrible for an urban commuter line. And Temple Meads is a destination is it’s right for people going to other places other than Bristol City.
 

The exile

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Not necessarily - however the proximity of tunnel to platform can cause issues if you need/want to lower the track through the tunnel for OLE clearance. Plenty of solutions available of course, although comparison to lines designed for OLE, or using completely different systems, isn't really relevant.
Haven’t alighted at either Clifton Down or Montpelier for a while but if the platform height there is anything like it is at Stapleton Road, then track lowering to get wires through the tunnels would make life a lot easier for passengers as well!
 

zwk500

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2 tph is terrible for an urban commuter line.
No it's not, and especially not in Bristol where the buses offer a meaningful competition just on stop-stop journey times to a range of actual destinations across the city.
And Temple Meads is a destination is it’s right for people going to other places other than Bristol City.
If you're heading for Bristol City you'll need the bus to Ashton Gate :lol:. More seriously, if you mean 'Temple Meads is an interchange for further destinations' you're correct, but Temple Meads as a destination is primarily offices at the moment. The Harbour, Broadmead Shopping, King Street/Old Town and St Nick's Market are all a 15 minute walk away up some fairly busy roads.
Haven’t alighted at either Clifton Down or Montpelier for a while but if the platform height there is anything like it is at Stapleton Road, then track lowering to get wires through the tunnels would make life a lot easier for passengers as well!
True, although the practicalities of lowering the track through the platform would need looking at, especially if you were to have a gradient along the length of the platform so the step was higher at one end than the other! You're absolutely right, the steps at the 5 stations up to and including Clifton Down are very big (not quite as bad as Temple Meads itself though!), I've not got the train further along the branch yet, and reducing it would be a benefit.
 

Pat31

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2 tph is terrible for an urban commuter line. And Temple Meads is a destination is it’s right for people going to other places other than Bristol City.
2tph is not terrible for a urban heavy rail commuter line. Most of South London has this level of service?
 

Transilien

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I would say the next step for Bristol suburban services is branding and ticketing integration with buses in the area. Perhaps stations could be rebranded with metro west branding.
 

Chingy

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2 tph is terrible for an urban commuter line. And Temple Meads is a destination is it’s right for people going to other places other than Bristol City.

Whilst I agree that improvements could be looked at, such as quicker trains & longer trains, 2 tph definitely isn’t terrible.

That’s quite often the standard across many similar branch lines, especially with competitive competition from public road transport.
 

zwk500

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I would say the next step for Bristol suburban services is branding and ticketing integration with buses in the area. Perhaps stations could be rebranded with metro west branding.
Agree integrated ticketing should be the next step - ideally zonal pricing as well.
 

WelshBluebird

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No it's not, and especially not in Bristol where the buses offer a meaningful competition just on stop-stop journey times to a range of actual destinations across the city.
The issue with the buses in Bristol is unreliablity largely caused by traffic and roadworks. For many it means buses just aren't something that can be relied upon.
If you're heading for Bristol City you'll need the bus to Ashton Gate :lol:. More seriously, if you mean 'Temple Meads is an interchange for further destinations' you're correct, but Temple Meads as a destination is primarily offices at the moment. The Harbour, Broadmead Shopping, King Street/Old Town and St Nick's Market are all a 15 minute walk away up some fairly busy roads.
If you head out the back of the station then you can avoid a lot of the busy roads if walking into town.

Theres also places like Old Market (10 mins walk along quiet roads to bars, pubs and gig venues), Motion (just a few minutes walk away), the soon to be developed university area (right behind the station) etc etc. To say Temple Meads is out on a limb with nothing there is just not true anymore.
Agree integrated ticketing should be the next step - ideally zonal pricing as well.
Allowing the freedom travelpass tickets for br bought via an app or similar would be a great first step to that given the ticket already exists.
 

zwk500

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The issue with the buses in Bristol is unreliablity largely caused by traffic and roadworks. For many it means buses just aren't something that can be relied upon.
Agreed.
If you head out the back of the station then you can avoid a lot of the busy roads if walking into town.
If you're talking about the Temple Quay entrance you still have to cross Temple or Bristol Bridge.
Theres also places like Old Market (10 mins walk along quiet roads to bars, pubs and gig venues), Motion (just a few minutes walk away), the soon to be developed university area (right behind the station) etc etc. To say Temple Meads is out on a limb with nothing there is just not true anymore.
I didn't say Temple Meads is out on a limb (indeed have argued the opposite several times). But let's not pretend it's ideally sited for the city centre.
Allowing the freedom travelpass tickets for br bought via an app or similar would be a great first step to that given the ticket already exists.
Agreed
 

Mgameing123

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2tph is not terrible for a urban heavy rail commuter line. Most of South London has this level of service?
It really is if we want to make this Line attractive to commuters. We could easily run a train every 15 minutes using a Lint 41 or Desiro inspired train.
 

zwk500

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It really is if we want to make this Line attractive to commuters. We could easily run a train every 15 minutes using a Lint 41 or Desiro inspired train.
The line is already attractive to commuters. 4tph is very much on the nice to have lost, not an essential (I'd put level boarding far, far higher priority than 4tph for starters). An extra car (i.e. all 4-car) would also be much better than double the frequency
 

stuu

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The line is already attractive to commuters. 4tph is very much on the nice to have lost, not an essential (I'd put level boarding far, far higher priority than 4tph for starters). An extra car (i.e. all 4-car) would also be much better than double the frequency
Really? I agree that level boarding should be a priority everywhere, but I would have said frequency beats capacity every time
 

Mgameing123

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Really? I agree that level boarding should be a priority everywhere, but I would have said frequency beats capacity every time
Depends. At some point it does become better to increase capacity over frequency. But the Severn Beach Line is far away from this level.

== Doublepost prevention - post automatically merged: ==

The line is already attractive to commuters. 4tph is very much on the nice to have lost, not an essential (I'd put level boarding far, far higher priority than 4tph for starters). An extra car (i.e. all 4-car) would also be much better than double the frequency
Alright so you basically want additional capacity but not more trains on the line? 2tph is not a good turn up and go frequency. You still need to rely on the timetable. 4tph is the minimum for a turn up and go frequency.
 

zwk500

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Really? I agree that level boarding should be a priority everywhere, but I would have said frequency beats capacity every time
Lack of level boarding increases the length of stops as people grab handrails to steady themselves or lift heavy bags/bikes/pushchairs as well as providing a massive barrier to access to disabled passengers. All of this massively slows down dwells.
Frequency only beats capacity if people are making lots of journeys spread out along the line. However journey patterns on this line are very centred around key times - work and school start and finish times. Outside of the peak there's barely a full carriages worth of people.
Alright so you basically want additional capacity but not more trains on the line? 2tph is not a good turn up and go frequency. You still need to rely on the timetable. 4tph is the minimum for a turn up and go
This line doesn't justify a turn up and go frequency. Bristol isn't London and the traffic is highly concentrated around key journey times. You also have competition from the buses, unreliable as they are (the trains not much better in that regard, in my experience). Clifton Down has a bus every 5 minutes or so into town. Portray Park And Ride serves Avonmouth, Shirehampton and Sea Mills with turn up and go buses that serve more of the city centre.

The line still has an hourly service on Sundays (might be mornings only) and that's absolutely useless, you have 40 min connections at TM. But going to 15min frequency outside the peaks on weekdays would just put loads of empty trains on (with all the costs involved in more trains vs longer trains) to be a problem for punctuality without answering any particular transport need.

I do live on the line and use it regularly.
 

Mgameing123

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Lack of level boarding increases the length of stops as people grab handrails to steady themselves or lift heavy bags/bikes/pushchairs as well as providing a massive barrier to access to disabled passengers. All of this massively slows down dwells.
Frequency only beats capacity if people are making lots of journeys spread out along the line. However journey patterns on this line are very centred around key times - work and school start and finish times. Outside of the peak there's barely a full carriages worth of people.

This line doesn't justify a turn up and go frequency. Bristol isn't London and the traffic is highly concentrated around key journey times. You also have competition from the buses, unreliable as they are (the trains not much better in that regard, in my experience). Clifton Down has a bus every 5 minutes or so into town. Portray Park And Ride serves Avonmouth, Shirehampton and Sea Mills with turn up and go buses that serve more of the city centre.

The line still has an hourly service on Sundays (might be mornings only) and that's absolutely useless, you have 40 min connections at TM. But going to 15min frequency outside the peaks on weekdays would just put loads of empty trains on (with all the costs involved in more trains vs longer trains) to be a problem for punctuality without answering any particular transport need.

I do live on the line and use it regularly.
The issues of punctuality can be solved with double tracking and empty trains would be fine as long as they are running during the daytime. Your suggesting 4 car trains every 30 minutes over a 2 car Lint type stock every 15 minutes. If If we really want people to shift from cars to sustainable forms of travel then we must provide better public transport options. If a service every 30 minutes with a 4 car train at peak times is justifiable then I'm very sure a train every 15 minutes with 2 cars during peak time should do fine.

There are very good examples of smaller branch lines running frequent 2 car trains (See the Nærum line).
 

zwk500

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The issues of punctuality can be solved with double tracking
It would reduce, but not eliminate, the problem of overlength dwells.
and empty trains would be fine as long as they are running during the daytime.
Empty trains are bad, especially when there is so much crowding on other parts of the network.
Your suggesting 4 car trains every 30 minutes over a 2 car Lint type stock every 15 minutes. If If we really want people to shift from cars to sustainable forms of travel then we must provide better public transport options. If a service every 30 minutes with a 4 car train at peak times is justifiable then I'm very sure a train every 15 minutes with 2 cars during peak time should do fine.
Do you have any observations or data beyond just 'you're sure?'. I use this line regulalry on and off peak. The majority of people using this line are aiming to arrive at their destination by a certain time in the morning and cannot leave until certain times in the afternoon, because they are going to work or school. Frequency is less important to them than their 1 specific train having a seat and arriving on time.
There's also the point that running lots of short trains will require more drivers and guards (DOO on this line is a whole other question) and if you had them they could be better deployed elsewhere than running empty trains on this line. Starting with the Bristol-Filton line, which is currently 1tph when it should be 2 (and that has far more potential to go to 4 by adding 2tph stopping Bristol TM-Bristol Parkway).
 

lachlan

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I agree in the long run it would be good to see frequencies increased on the line, but for now I feel attention should be on increasing the frequencies at other local stations like Ashley Down, Patchway, Parson Street, and Bedminster. The latter two shouldn't have to wait for Portishead to reopen to get a better service - 1tph is unacceptable.

One other area that could be improved is dwell times at Temple Meads as this would make cross-city journeys more attractive.
 

Mgameing123

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It would reduce, but not eliminate, the problem of overlength dwells.

Empty trains are bad, especially when there is so much crowding on other parts of the network.

Do you have any observations or data beyond just 'you're sure?'. I use this line regulalry on and off peak. The majority of people using this line are aiming to arrive at their destination by a certain time in the morning and cannot leave until certain times in the afternoon, because they are going to work or school. Frequency is less important to them than their 1 specific train having a seat and arriving on time.
There's also the point that running lots of short trains will require more drivers and guards (DOO on this line is a whole other question) and if you had them they could be better deployed elsewhere than running empty trains on this line. Starting with the Bristol-Filton line, which is currently 1tph when it should be 2 (and that has far more potential to go to 4 by adding 2tph stopping Bristol TM-Bristol Parkway).
Ok yeah I agree on that. My idea is just for Bristol to gets its own mini S train network with frequent commuter trains to help it grow which is not impossible.
 

zwk500

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Ok yeah I agree on that. My idea is just for Bristol to gets its own mini S train network with frequent commuter trains to help it grow which is not impossible.
That's what the local authorities are aiming for as well! (have a look at the MetroWest project from WECA).
2tph on each commuter branch should really be the standard, however, increasing frequencies beyond 2tph on each branch must balance the fact that there is freight demand to/from the docks and a quite awkward track layout on the 3 arms out of Bristol. There are also longer-distance trains that would need to share the tracks from TM to Filton (from Portsmouth and the West Country to Cardiff), and we should look to London for the lesson of trying to squeeze too many different traffics together, the North London Line is now basically only Overground or Freight. Unlike a lot of continental Europe, the UK does not have many sections where a pair of tracks can be fully reserved for S-trains.
 

Mgameing123

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That's what the local authorities are aiming for as well! (have a look at the MetroWest project from WECA).
2tph on each commuter branch should really be the standard, however, increasing frequencies beyond 2tph on each branch must balance the fact that there is freight demand to/from the docks and a quite awkward track layout on the 3 arms out of Bristol. There are also longer-distance trains that would need to share the tracks from TM to Filton (from Portsmouth and the West Country to Cardiff), and we should look to London for the lesson of trying to squeeze too many different traffics together, the North London Line is now basically only Overground or Freight. Unlike a lot of continental Europe, the UK does not have many sections where a pair of tracks can be fully reserved for S-trains.
London provides a good example of how to effectively use our rail corridors.
 

zwk500

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London provides a good example of how to effectively use our rail corridors.
This is highly debatable. A single freight train presenting at the wrong time can destroy the overground service and everything has to be stepped up to match. We should have completely independent freight tracks or even a london ring railway around the M25 to keep metro traffic on it's own set of tracks. Notably the German S-Bahns are largely on dedicated pairs of tracks.
 

ScotGG

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2tph is not terrible for a urban heavy rail commuter line. Most of South London has this level of service?
It is pretty poor. Not good enough for south London either. Every 15 mins is the minimum we should look for in busy urban areas.

The line has scope to alleviate congestion and facilitate more much needed housing with improved frequency, as do many other lines within urban areas of the country.
 
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