It's going to take a lot to change the mindset of many councils to help people reduce car usage.
Actually it's changing the mindset of motorists which will make the difference.
The nearest small shop from me is 300 meters and neighbours drove to it until they put in LTN bollards. Now it's a 1 mile round trip & the people who had to drive making a fuss.
The idea behind 15 minute cities is toreduce traffic on residential roads and to encourage people to walk/cycle. Sadly its been turned into something that it never was.
Me even mentioning 15 minute cities will probably bring out the "triggered" but all I can say is it is entirely about localisation.
Let's consider that a little under 150-200 years ago cities were surrounded by commons on which that cities food was mostly grown, dairy herd, pigs, chicken and geese were raised too. - the working class history of these is of inclosure, removal (often at gunpoint) & confiscation. To force people into factories. The last Enclosure Act was in 1752- leading to rioting and over 100 deaths of commoners by Yeoman, designed to drive people off the land and into factories. It also caused food shortages and a hike in food prices.