Travel disruption is set to hit M4 motorists throughout March.
A project aiming to transform parts of the motorway to a four-lane route will continue and is due to be completed later this year, despite the smart motorway rollout scheme having been paused in order to gather more safety data.
One part of the road that runs through Berkshire is set to become a smart motorway - from junction 12 for Theale to junction 3 for Hayes, according to reports from Berkshire Live.