With 20 mph the walking experience is more pleasant, less noisy and felt by pedestrians to be safer (particularly on narrow streets with narrow pavements like we have in Lewes). We also need Councils to do more than just put in “compliant” schemes (with Govt Guidelines on 20 mph schemes/zones) and Police and Councils to do more to bring down actual speeds.
Living Streets (then called the Pedestrian Association) successfully campaigned for a 30mph speed limit to be made the law
The amount spent on road collisions each year, an enormous drain on the economy
Major UK urban authorities that have already gone 20mph
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Will it take me longer to get around at 20 mph?
No. Lower speeds increase road capacities, as the bunching effect at junctions is reduced as traffic flow improves. That’s why urban motorways are often 40 or 50 mph, as opposed to 70 mph. Even an urban journey of three miles, taking 30 minutes in a 30 mph limit, was shown to only increase to 33 minutes in a 20 mph setting.
Do car drivers want a 20 mph speed limit?
The 2011 British Attitudes Survey demonstrates that well over two-thirds of us, including motorists, would like a 20mph speed limit in the streets where we live. In Portsmouth, over 40 per cent of respondents stated that since the introduction of 20 mph, there has been a safer environment for walking and cycling. Around a third of respondents noticed an increase in pedestrian and cyclist activities in the local area.
How can local authorities afford to introduce 20 mph in this economic climate?
The 20 mph zones in London are estimated to already be saving more than £20 million in crash prevention annually. The cost of road signs is remarkably low. For example, Portsmouth converted 1200 streets to 20mph for just over £500,000 – far cheaper than the alternative ideas put forward, which came to £2.2 million. It’s roughly seven times more cost effective, in terms of speed reduction achieved, to introduce a 20 mph limit across a wide area, than to spend the same sum on isolated, physically calmed zones. Campaigning stalwart Caroline Russell and Living Streets media volunteer Sophie Coleman 'vox-popped' business owners and employees in two areas of Islington to find out what they thought of the proposals for 20 mph speed limits on all roads in the borough - and the results were positive.
Surely it’s impossible to enforce 20 mph speed limits?
The police are obliged to enforce all speed limits. The evidence is that drivers drop their speed when a 20 mph limit is enforced. In Portsmouth, streets where average speeds were previously higher than 24 mph, decreased limits have helped reduce speed by an average of 6.3 This occurred without the need for any extra police enforcement.