Gonzalez wrote in message ...
Quoted message said:Quoted message said:In my experience of train travel, significant delays have occured far more often than in my
experience of car travel. For example, on the most recent train journey I made, the train was
cancelled, the following one half an hour later was twenty minutes late and grossly overcrowded.
Try this little experiment.
Set a start time for your journey by car.
Calculate the distance travelled in town, on B roads, on A roads, on trunk A roads and on the
motorway.
Estimate the average speed in town at 25 MPH, on B roads at 40 MPH, on A roads at 50 MPH on trunk A
roads at 60 MPH and on the motorway at 70 MPH, and from that calculate your arrival time.
Then see how often your journey by car is delayed.
If the speed limit on a motorway is 70 mph in practice you are not going to be able to achieve a 70
mph average without breaking the speed limit - especially given that typical speedos overread by
5-10%. You wouldn't want me to exceed the speed limit, would you?
Realistically, I would say achievable average end-to-end speeds are:
20 mph in urban areas 40 mph on mixed, mainly rural roads 50 mph on high-quality A-roads 60 mph on
motorways, perhaps more in very clear conditions
If you try to work out comparable average speeds on railways, don't forget to include waiting time
and time taken getting to and from the station.
Quoted message said:About 4 or 5 times a year I venture to the Lake District from South East London with my
mountaineering club. The time taken for a one way journey can vary between 4.5 hours and 8 hours.
Timing the journey to within 5 minutes is almost impossible, but that is what is expected on the
trains! And if just 20% of the time trains do arrive within 5 minutes of schedule, they are doing
far better than a car ever could.
Not so. On the journey I was describing, apart from one or two examples of congestion caused by
accidents, I knew the likely duration to within a couple of minutes. Sometimes, due to
unusually favourable conditions, I was early, but I wouldn't be so unrealistic as to categorise
that as normal.
You have to judge delays in comparison with the time that, from experience, is realistically
achievable.
--
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degraded state of moral and patriotic feeling which thinks that nothing is worth war is much worse."
(John Stuart Mill)