Monday, 25 June 2012
20mph limits help people to reach their destination quicker
Optimal speeds for maximum urban traffic flow have been mathematically modelled and 20mph is more efficient than 30mph.
· Drivers cut their spacing as braking distances contract. Shorter gaps mean more vehicles can use the available road space, reducing standing traffic.
· Filtering at junctions becomes easier too. It is far easier for motorists to pull into traffic travelling at 20mph than at 30mph. So junctions work more efficiently and queues reduce.
· Motor traffic volumes decrease since slower speeds encourage active, sustainable and shared travel. Walking and cycling levels rose by up to 12% after Bristol’s 20mph limit
· Buses operate more efficiently. The reduced length of queues means that bus journey times decrease, and become more reliable. Buses become a more attractive alternative to the car.
For more information visit http://www.20splentyforus.org.uk/BriefingSheets/20mph_Improves_Traffic_Flow.pdf
Posted by Chorlton LibDems at 19:47