Not murdering people is another plus! Research suggests that pedestrians struck at 30 mph have about a 1 in 5 chance of being killed. At 20 mph the chance of a

Not murdering people is another plus! Research suggests that pedestrians struck at 30 mph have about a 1 in 5 chance of being killed. At 20 mph the chance of a pedestrian dying is 1 in 40. In order to improve safety on the streets where we live, we will amend our guidance on speed limits, recommending that highway authorities, over time, introduce 20 mph zones or limits into streets that are primarily residential in nature and which are not part of any major through route. Similarly, we will encourage local authorities to consider introducing 20 mph limits or zones in town or city streets, such as around schools, shops, markets, playgrounds and other areas where pedestrian and cyclist movements are high. -- http://www.howwedrive.com/2009/04/24/a-safer-way/ http://www.howwedrive.com/2009/04/24/a-safer-way/