Drivers face delays this week while work is carried out to improve safety at a Norfolk accident blackspot.
The work is on the busy A47 east of Norwich between Blofield and Acle after a series of serious accidents.
Parts of the road will be closed overnight for much of this week while a new anti-skid surface is laid.
There are also plans to extend the 50mph speed limit along the same stretch in November and install vehicle-activated reminders for motorists.
There will be overnight lane closures in both directions until Friday 15 October.
Work will be carried out on weekday nights only from
7.30pm to 7am.
Traffic will be escorted in convoy past the area of work and there will be a 10mph speed restriction in operation.