Home |
Search |
Today's Posts |
|
London Transport (uk.transport.london) Discussion of all forms of transport in London. |
|
LinkBack | Thread Tools | Display Modes |
#5
|
|||
|
|||
Unique pedestrian crossing in Burnt Oak
On Sat, 3 Jan 2004 09:47:35 -0000, "Paul Oter"
wrote: "Aidan Stanger" wrote in message The big mystery is why so few crossings in London are marked like that. Space is such a constraint that most of London's signalled crossings use the Barnes Dance sequence UIVMM. I suspect the main constraint is that a diagonal crossing, being a greater distance, requires vehicle traffic to be stopped for longer than with an ordinary orthogonal crossing. So it's pedestrian convenience vs motorist convenience. PaulO An optimal phasing for a number of pedestrians would surely depend on where pedestrians are trying to get to, and the relative numbers wanting to make a simple orthogonal move and those wanting a diagonal move? If all pedestrians wanted to end up on a diagonally opposite corner, then one diagonal move as opposed to two orthogonal moves would result in a shorter overall crossing time and obviously a shorter stopping time for motorists. It becomes more complex when a group of pedestrians want to undertake both types of crossing. Clearly there's a break even point somewhere which minimises the sum total of all pedestrian crossing movement times. The Japanese have a good example in central Tokyo which combines IIRC both types of crossing, and they know a thing or two about moving people around. OTOH, since it seems our local authorities are anti-car to a ridiculous extent, this is probably an academic discussion. :-) Rgds, |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Station Shut Due To Burnt Toast | London Transport | |||
Camden Lock Market - still burnt out | London Transport | |||
Burnt Oak today | London Transport | |||
What happened at Burnt Oak? | London Transport | |||
Pedestrian Crossings between Hyde Park and Kensington Gardens | London Transport |