Drivers in North Yorkshire face weeks of disruption as work begins to improve safety at an accident blackspot.
From Monday, temporary traffic lights and a 40mph speed limit will be in place at the junction of the A64 and the B1249 at Staxton near Scarborough.
The work is due to be completed by early March, the Highways Agency said.
Project manager Andrew Brown said: "We know that there have been accidents at this location previously and we take this very seriously."
Traffic lights will be upgraded and new pedestrian crossing points installed. There will also be imporved footpath access to bus stops and repairs to the road surface and drainage systems.
Mr Brown said: "This is part of our ongoing commitment to improving the A64 and will improve road safety for local people.
"Drivers should be prepared for some delays and should, therefore, factor in some extra time for their journeys."