Friday, January 16, 2009

20 mph for Bristol: go for it!!

1 comment:
Bristol gets 20mph speed limits on roads.

Reduction in accident frequency and severity*, lower air pollution**, quieter and safer places... 20mph is a great idea! But lets have all residential areas covered, especially around schools, lets also lower speeds on other roads - and lets make sure that 20mph is enforced properly! I hope Bristol City Council goes well beyond tinkering with this green idea.
*At 20mph a pedestrian you knock over stands a 90% chance of surviving. At 40mph they stand a 90% chance of dying.
**Most energy is used in accelerating and braking, which happens more frequently in cities . Driving in any particular gear consumes more energy per mile the faster you travel. Driving steadily at 20 mph is more efficient and thus cheaper and cleaner.