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UK Cities Tighten Urban Speed Limits: Birmingham Cuts, Bristol Proposes, Glasgow Prepares 20mph Rollout

Authorities are accelerating evidence-led road-safety programmes to slow traffic in busy urban corridors.

Overview

  • Birmingham has lowered many 40mph limits to 30mph on key routes and is deploying new speed cameras as part of a dangerous-driving crackdown.
  • Drivers in Birmingham face penalties for exceeding the new posted limits, with police tolerance thresholds varying and not guaranteed.
  • Bristol has proposed reducing speeds from 30mph to 20mph on 97 roads covering about 59 miles, with a six-week public consultation preceding any Traffic Regulation Orders.
  • City officials in Bristol cite collision analyses and a 2018 University of the West of England study showing earlier 20mph phases cut crashes and saved lives, with the £500,000 expansion funded from Clean Air Zone revenues.
  • Glasgow plans to extend 20mph limits to most streets next month using Temporary Traffic Regulation Orders lasting up to 18 months for monitoring before any permanent orders.