Work to improve motorways and major roads is set to begin this week.

Overnight closures will take place from July 23 to allow Highways England to improve the approaches to junction 15 of the M4 and the A419.

The road will be open as usual during the day and over the weekend.

From Friday until August 10, the east side of the junction 15 roundabout will be closed between Monday to Friday from 8pm to 6am.

There will be no access onto the roundabout from the A419 southbound.

The M4 westbound exit-slip and M4 eastbound entry-slip will also be closed.

The west side of the junction 15 roundabout will be shut from August 11 to September 7 from Monday to Friday and between 8m to 6am.

Drivers will not be able to access the roundabout from the A346 northbound. There will be no access off the roundabout to the A419 northbound.

The M4 eastbound exit-slip and M4 westbound entry-slip will be closed.