Birmingham’s 20mph speed limit across most of the city’s roads is not, despite what its opponents claim, a war on the motorist. It is the logical next step in a decades-long dismantling of Britain’s most car-obsessed city, and the evidence from Wales suggests it will save lives while barely inconveniencing anyone who adjusts their expectations accordingly.
What Birmingham Is Actually Doing
According to Yahoo News reporting on the council’s plans, the 20mph default would apply to all routes classified below A-roads. Strategic A-roads would remain at 30mph. So the horror stories about ambulances crawling through ring roads are, to put it politely, confected.
A BBC News report quoted a West Midlands transport official describing the plans as ‘life-saving.’ That framing matters. The conversation is not really about speed limits. It is about whose lives the road system is organised around.
Birmingham in the 1960s was the apotheosis of car-first planning: elevated routes, subterranean pedestrian tunnels, roundabouts designed more for testing new models than for getting people to work. That era has been steadily unwound. The city centre is unrecognisable compared to thirty years ago. This latest move completes the logic of everything that came before it.
The Welsh Evidence for the Birmingham 20mph Speed Limit Case
Wales introduced a default 20mph limit on residential roads and busy pedestrian streets in September 2023, following a Welsh Government Senedd vote in July 2022, described as the biggest change to Welsh roads since seatbelt legislation in 1983. The results are not ambiguous.
Research from the Transport Research Institute at Edinburgh Napier University, conducted with Public Health Wales and published by the Welsh Government, estimated the limit could save around £100 million for the Welsh NHS in the first year alone, more than 100 lives over a decade, and avoid 14,000 casualties in total.
The same research commissioned a Beaufort Research public attitude survey. Almost two-thirds of respondents said they would support a 20mph limit where they lived. Some 64% said it makes it safer for pedestrians; 57% agreed it means fewer serious collisions.
Transport for Wales monitoring data showed average speeds on main roads dropped by 4mph following the change, from 28.9mph to 24.6mph. Road casualties in the first quarter of 2024 were 19% lower than in the previous quarter and 26% lower than the same period in 2023, the lowest figure recorded in Wales outside the COVID-19 period.
Yes, some roads have reverted to 30mph following Welsh Government guidance in July 2024 helping authorities assess which routes warranted exceptions. That is what good policy looks like: a framework with built-in flexibility, not a rigid ideology. The core principle has held.
The Opposition Is Losing, Even Where It Wins
Conservatives and Reform are already invoking the ‘war on the motorist’ framing, which is the political equivalent of a car alarm: familiar, irritating, and ignored by everyone except the person it is meant to alert. The same phrase accompanied every congestion charge, every cycle lane, every low-traffic neighbourhood. The cities that pressed ahead are, without exception, more liveable now than before.
In Toronto, Ontario’s governor Doug Ford is ripping out 19km of cycle lanes. Paris, by contrast, has installed more than 1,000km of them since Anne Hidalgo was first elected mayor on 5 April 2014, re-elected in July 2020. The Seine’s left bank was pedestrianised in 2013. Bogotá built 500km of new cycle paths. New York has a congestion charge. Copenhagen may already have achieved a 50% cycling modal share for commuters.
Ford’s approach is the exception. The direction of travel (if you will forgive the phrase) is unmistakable.
Sadiq Khan’s experience with the ultra-low emission zone in London is the relevant domestic precedent. He held firm against fierce opposition, including from within his own party. The air quality improvements are now measurable and visible. Birmingham’s leadership will face the same noise. The question is whether they have Khan’s nerve.
Andy Burnham’s devolution agenda creates the conditions for more cities to follow. The template is there. The evidence from Wales is substantial. The political will in Birmingham appears, for now, to exist.
Twenty is plenty. The cities that act on it first will be the ones other cities are studying in ten years’ time. Birmingham has put itself in that position. The rest of England’s cities would be unwise to wait.
