Saturday 24 September 2022 02:50 PM Government BLOCKS City of London's 15mph speed limit plan trends now Government BLOCKS City of London's 15mph speed limit plan because car speedos aren't accurate enough when driving so slowly The City of London wanted a 15mph speed limit enforced within the Square Mile The Government blocked the plan as car speedometers are not accurate enough Officials are going to roll out 'advisory' road signs to urge drivers to slow down By Darren Boyle for MailOnline Published: 14:44 BST, 24 September 2022 | Updated: 14:46 BST, 24 September 2022 Viewcomments A new 15mph speed limit for the City of London has been banned by the Department of Transport who claim it is not technically possible as car speedometer's are not accurate enough. The City of London Corporation announced plans in May 2019 to reduce speed limits within the Square Mile in order to protect pedestrians and cyclists from accidents as well as reducing pollution. To support it's bid to implement the 15mph speed limit the corporation commissioned researchers to assess the road safety benefits of the proposal. They found that the risk of someone being killed in a collision with a car traveling at 20-25mph was between 10 and 20 per cent. This falls to between 2 to 5 per cent when the speed drops between 10 and 15mph. The City of London Corporation wanted to introduce a 15mph speed limit across roads it controls within the Square Mile The City of London has been blocked by the government from introducing a 15mph speed limit across their jurisdiction The plan involved placing a blanket 15mph restriction on all roads in the Square Mile controlled by the City of London Corporation The Department of Transport said it would be difficult to enforce the new lower limit and suggested not all cars had a speedometer which has each 5mph marked out on the scale. According to the Independent, despite being blocked by the government, the corporation is planning to install 'advisory' 15mph signs along the roads within its jurisdiction. They will not, however, be allowed to use the traditional circle speed limit sign with black lettering on a white background surrounded by a red band. Speaking at the time of the plan's announcement, AA president Edmund King said switching the limit from 20mph to 15mph is 'not likely to make much difference' as traffic in the Square Mile has 'moved no faster than a horse and cart for 100 years anyway'. He added: 'All road users and pedestrians being more alert, abiding by the rules of the road and putting away their phones would probably be more effective than reducing the limit.' Read more: Share or comment on this article: All rights reserved for this news site (dailymail) and under his responsibility