Forum Topic

If the notion of all minor/residential  roads to become 20 mph becomes a reality, does this mean that all the roads will be given treatment to deter higher speeds. Items such as tables on entry, radar operated warnings, cameras for average speed detection, speed tables, humps and cushions. In the existing home zones where such measures are (partly) in place does it really slow cars enough or do they simply brake for every obstacle and accelerate away meantime.  Further, would these zones be enforceable if only enacted piecemeal as I understand that if insufficient measures are taken to slow the speed down, then traffic police cannot enforce 20 and in fact the speed limit reverts to national speed limit although going over humps at 60 mph would be interesting and disturbing to nearby residents.  At what cost then would these measures be implemented and likely all residents would pay rather than car users.  Still living in Ealing, we might have a chance as they seem less thorough on implementing measures in zones compared with other local authorities - the recent Hanger Hill imposition was a very cheap exercise as many humps were pre existing and in fact was such quality that road signs are wrongly erected - try Corfton Road leading into Hillside Road - why does it tell you 30 going into Hillside - and strange omissions in zone - why is Corfton excluded?  on the other hand Hounslow are currently implementing a new zone on Sparrow Farm estate with entry treatments for every road and humps every few yards - probably to make life more exciting for the moped maniacs.However Safety is the key concern and Ken or successors will probably win on this.Department of Transport does seem to be in favour of lower speeds because of accident reduction and reckons 20 mph limits without accompanying measures only reduces speed by 1 mph but with measures by 9 mph.  The biggest impact on life threatening survival rates is between 40 and 30 where survival rates improve to 80% chance to survive from the 10% at higher speed. The move to 20 increases survival rate to 97%.  Time for manufacturers to bring out a low geared urban car for the London Market or just persuade us even more not to bother with cars at all.

Colin Izzard ● 6586d