the argument that they pollute the environment and disadvantage people who can't drive will disappear when we have electric driverless cars. Whether we ever will have such things is another question!
No, not really. Pepole who can't drive would benifit from driverless vehicles yes, but they aren't the magic bullet some pepole make them out to be.
At the moment most cars are powered by petrol/diesel, and buses (and rural trains) are powered by... diesel. Buses and (in the right circumstances) trains pollute the environment
LESS than cars, but they still pollute a bit. Electrification (of cars, buses and trains) will make all modes
less polluting, but the electricity has to come from somewhere; there will still be an environmental impact associated with that and it will still be more efficient to move a number of pepole in a single vehicle rather than individually in lots of smaller ones. Plus, while driverless cars will in theory be able to run closer together due to a big reduction in the 'thinking distance', that only really helps at high speeds. At low speeds, you will not increase the capacity of a given amount of road space very much (if at all) so
congestion would still be a problem, leading for calls for more road space. More road space means... more concrete/tarmac. And, guess what, making concrete is polluting! Also, hard surfaces are said to increase flood risk since the water can't soak away (a different kind of environmental problem).
If we accept that a well patronised bus service means that the service is good enough (thus no need to reopen the railway), it becomes difficult to identify when a railway would be needed. If the bus service wasn't good enough, and thus not well patronised, how would one distinguish between a situation where the poor bus service suppresses demand, and a situation where there is little demand in the first place?
Without a proper case-by-case look at specific routes (which you would need to do) I think the default position should be something like this (but I have probably over-simplified considerably):
- if there is an infrequent, lightly-used, bus service then a better bus service is needed
- if there is a frequent, lightly-used, bus service but alot of road traffic along the route then the bus service might be too slow, still not good enough in other respects or you need a train
- if there is a frequent, well-used, bus service and not much other road traffic leave well alone
- if there is a frequent, well-used, bus service and lots of other road traffic get a train there sharpish
In the real world, a lightly-used bus service requires a subsidy from taxpayers. A rail service requires a much bigger subsidy.
Which is why the first course of action should be to look at improving the bus service; attract modal shift and thus reduce the subsidy needed to run the buses.
So your idea is that instead of a service from Oswestry to Gobowen and Wrexham, it should be Oswestry to Gobowen and reversal towards Shrewsbury?
That's an interesting question. I had assumed that any rail service from Oswestry would head for Wrexham to avoid a reversal; is demand from Oswestry to Shrewsbury greater than for Wrexham (with connections to Chester)? Also, going to Wrexham is more of a direct route than reversing to serve Shrewsbury, so more likely to be time-competitive.
The 2 tph plan will see 1 tph to Holyhead and 1 tph to Liverpool north of Gobowen with 1 tph to Cardiff, 0.5 tph to Birmingham INL and 0.5 tph terminating at Shrewsbury south of it.
I'm not sure that's right. Page 18 of the ams-wb-overview-presentation says 0.5tph Cardiff-Liverpool and 0.5tph Shrewsbury-Cardiff. I make that 1.5tph between Shrewsbury and Chester, not 2tph. So, heading south from Gobowen, you would have:
- 1tph to Cardiff (0.5tph from Holyhead and 0.5tph from Liverpool)
- 0.5tph to Birmingham International
South from Shrewsbury towards Hereford, you would have 2tph to Cardiff, 1tph from Manchester, 0.5tph from Liverpool and 0.5tph Shrewsbury-Cardiff.