Tony Posted March 8, 2010 Share Posted March 8, 2010 How well would it go down? Road safety would improve and we would get more volume from the available road network so we might increase the average speed and reduce journey times. Would you be happy to reduce the urban speed limit to 25 mph in Sheffield? How about reducing it even further to 20 mph? Link to comment Share on other sites More sharing options...
Amaranthus Posted March 8, 2010 Share Posted March 8, 2010 How well would it go down? Road safety would improve and we would get more volume from the available road network so we might increase the average speed and reduce journey times. Would you be happy to reduce the urban speed limit to 25 mph in Sheffield? How about reducing it even further to 20 mph? No. Efficiency would improve if people paid more attention and were more considerate of other drivers. Forcing people to crawl around at 20mph will do anything but reduce journey times. Link to comment Share on other sites More sharing options...
Dave650 Posted March 8, 2010 Share Posted March 8, 2010 Road safety would improve Link to some evidence please. Link to comment Share on other sites More sharing options...
hutch Posted March 8, 2010 Share Posted March 8, 2010 My car will run at 30 in 5th gear but under that speed means changing down with resulting higher revs using more fuel. Link to comment Share on other sites More sharing options...
Eater Sundae Posted March 8, 2010 Share Posted March 8, 2010 How well would it go down? Road safety would improve and we would get more volume from the available road network so we might increase the average speed and reduce journey times. Would you be happy to reduce the urban speed limit to 25 mph in Sheffield? How about reducing it even further to 20 mph? I've no problems with the existing 20 mph limits, when I use them. (I'm familiar with the ones at Tinsley and near Nether Edge/Sharrow. I would be happy with similar limits on similar types of roads in other areas - ie those where factors such as children, lots of parked cars with narrow lanes between etc). The biggest problems are with the traffic calming. I know it was part of the requirement for the existing 20mph areas, but I think that it might not be a legal requirement in future. As average speed cameras become commoner/cheaper, maybe we will see them on urban streets, and sleeping policemen etc will no longer be necessary. Link to comment Share on other sites More sharing options...
Dave650 Posted March 8, 2010 Share Posted March 8, 2010 I've no problems with the existing 20 mph limits, when I use them. (I'm familiar with the ones at Tinsley and near Nether Edge/Sharrow. I would be happy with similar limits on similar types of roads in other areas - ie those where factors such as children, lots of parked cars with narrow lanes between etc). Thing is people should be doing that anyway, regardless of a sign telling them they have to. Link to comment Share on other sites More sharing options...
Tony Posted March 8, 2010 Author Share Posted March 8, 2010 Obviously people should (or shouldn't) be doing a lot of things on the roads but that they don't (or do) do. The computer on my car tells me that my average speed around Sheffield in the week is a mere 16 mph. I wonder what effect a lower limit would have on that. Transport planners tell us that slowing traffic down on motorways actually speeds up journey times. Link to comment Share on other sites More sharing options...
Guest sibon Posted March 8, 2010 Share Posted March 8, 2010 Link to some evidence please. There is , which is presumably based upon solid evidence. That coupled with the fact that the Kinetic Energy of the car varies with velocity squared, would seem to suggest that it is a reasonable assumption that reducing average speeds would make our roads safer. Is there any evidence that it would also improve journey times? Link to comment Share on other sites More sharing options...
Guest Posted March 8, 2010 Share Posted March 8, 2010 How well would it go down? Road safety would improve and we would get more volume from the available road network so we might increase the average speed and reduce journey times. Would you be happy to reduce the urban speed limit to 25 mph in Sheffield? How about reducing it even further to 20 mph? How about everyone walking Then there'd be an infinitesimal (sp?) increase in available road network and no road related deaths or injuries Link to comment Share on other sites More sharing options...
Forumosaurus Posted March 8, 2010 Share Posted March 8, 2010 How well would it go down? Road safety would improve and we would get more volume from the available road network so we might increase the average speed and reduce journey times. Would you be happy to reduce the urban speed limit to 25 mph in Sheffield? How about reducing it even further to 20 mph? Are you crazy? No one goes 30 as it is, it wouldn't make any difference. And as for safety, I bet most road deaths are caused by idiot pedestrians who don't look where they're walking. Link to comment Share on other sites More sharing options...
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