Parts of Bristol and Bath will be closed to traffic from 3 July to allow more room for social distancing and help support businesses as they reopen.
In Bristol, King Street, Clare Street and Corn Street will be shut to cars from Friday 3 July - the day before pubs, cinemas, hair salons and other businesses can welcome customers again.
The temporary closure is part of a wider Council ambition to improve walking, cycling and public transport in the city and cut levels of air pollution.
Bath and North East Somerset Council has also revealed its plans to close some roads from next Friday.
Kingsmead Square and Avon St in Bath will only open to pedestrians and cyclists to help people adhere to social distancing measures.
Residents and businesses there have received letters from the authority informing them of the temporary closures.
There are some exceptions to the schemes in both cities, to help ensure businesses can still get deliveries.
In Bristol the three streets affected will be open to cars between 5.30am and 10.30am to allow for deliveries.
The council is also working with local businesses to make sure access is still in place for disabled members of the public.
In Bath the closures will be in place between 10am and 6pm.