|85% of motor traffic on these bridges travels at these high speeds |
during the night when you might want to cycle home from the pub or
to an early shift at the hospital. Is that acceptable? (speed in mph of
85% of the motor traffic)
The report surveyed inner London bridges over a 36 month period to July 31 2006 and recommends that TfL implement and enforce a 20mph zone across inner London's bridges.
Here's what's fascinating about the report:
TfL knows that bridges are a problem. In that 36 month period, there were a total of 160 collisions on the bridges between Putney and Tower Bridge with three deaths, 22 serious injuries and the remainder slight injuries.
And not at all surprisingly, vulnerable road users make up a very high proportion of those collisions - 75.7% of the collisions involved pedestrians, cyclists or powered-two-wheelers.
In Germany, they lower the speed limit on trunk roads in their cities at night. It makes the roads quieter for people who live nearby and want to sleep. It also prevents the roads turning into motorways.
Focus solely on cycling for a moment, though:
|85% of the motor traffic speeds averaged out across 24 hours |
(north and southbound)
Some more statistics about central London's bridges and bicycles: 50% of all collisions on Battersea Bridge incolve bicycles. 71% of all collisions on Blackfriars Bridge involve bicycles. 43% of collisions on London Bridge involve bicycles.
Perhaps TfL should start considering whether it's acceptable that central London's bridges are places where 85% of motor vehicles disregard the 30mph speed limit and where, at night, most motor vehicles are allowed to hurtle across at speeds over 40mph.
Would you encourage your dad to cycle back from the pub with you over Putney Bridge of an evening when you know almost every motor vehicles is hurtling across at 40mph and you have to negotiate a right-hand turn that takes you across multiple lanes of that fast-moving traffic?