Rishi Sunak is set to block councils from introducing new 20mph speed limits, according to reports.
The move is among a package of measures the prime minister is due to announce at the Conservative Party’s annual conference that gets under way in Manchester this weekend.
The expansion of the Ultra Low Emission Zone (ULEZ) by London mayor Sadiq Khan was blamed for the failure of the opposition to take Boris Johnson’s former seat.
It led to a commitment by Mr Sunak to tackle “anti-motorist policies”.
Alongside plans to curb the power of councils to introduce new 20mph zones on main roads, Mr Sunak is also expected to announce limits on councils’ abilities to levy fines from traffic cameras and restrictions on enforcing box junction infringements.
A cap on the number of hours a day that cars are banned from bus lanes could also be introduced.
Speaking to BBC Radio Manchester on Thursday, Mr Sunak argued prioritising driving was the best policy, as “the vast majority” of journeys made are in cars.
In a string of broadcast interviews on Thursday, the prime minister hit out at “speculation” but declined to be drawn over whether he will scrap the rail project’s Birmingham to Manchester leg over soaring costs.
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If it were to be axed, it would be the latest scaling back of the project, with the eastern route to Leeds scrapped entirely and work between Birmingham and Crewe delayed due to the impact of inflation.
Some estimates have put the total cost at more than £100bn, while the project has been rated “unachievable” by the infrastructure watchdog.