Our erstwhile Mayor of London, aka BoJo, saying in 2015, provided untrammelled support for the 20mph limit,
“The Mayor of London, Boris Johnson, said: `Lower speeds have the potential to significantly improve road safety while enhancing the environment for walking and cycling. As well as actively supporting and funding the installation of 20mph zones and limits on borough roads across London, we have also been looking at the TfL Road Network to see where further 20 mph limits could provide significant benefits. These locations will help us to better understand the role that 20 mph limits could play going forward.’”
In the same TfL item this was said,
"The six key commitments are:
- To lead the way in achieving a 40% reduction in the number of people killed or seriously injured on the capital’s roads by 2020 - with a longer term ambition of freeing London’s roads from death and serious injury;
- To prioritise safety of the most vulnerable groups - pedestrians, cyclists and motorcyclists - which make up 80% of serious and fatal collisions;
- To provide substantial funding for road safety, invested in the most effective and innovative schemes;
- To increase efforts with the police and enforcement agencies in tackling illegal, dangerous and careless road user behaviour that puts people at risk;
- To campaign for changes in national and EU law to make roads, vehicles and drivers safer;
- To work in partnership with boroughs and London’s road safety stakeholders to spread best practice and share data and information"
The key element is “reduction in the number of people killed or seriously injured on the capital’s roads by 2020”
To be found here -
It’s simple - and as testing as it may seem - reducing speed increases significantly the survive-ability of those struck by motor vehicles.