Traffic lights will be in operation at the Comet Corner junction on the A259 in Middleton-on-Sea from Monday 24 April as finishing touches are made to an improvement scheme.
The traffic lights will be in place for three days to allow crossing points and the central traffic island to be re-constructed. The central island will also be widened to allow cyclists to cross.
Motorists are being warned to expect disruption and allow extra time for their journeys between the hours of 9.00am and 3.30pm while the lights are in place.
The £550k scheme will give motorists greater visibility and make it safer and easier for drivers, waiting either in Yapton Road or Worms Lane, to spot gaps in approaching traffic before pulling out.
A deceleration lane exiting the A259 onto Yapton Road is being extended to slow traffic travelling westbound.
Drainage ditches and pipes are also being improved to prevent water pooling on the road.
The work is being carried out by West Sussex Highways and complements the new Bognor Regis to Littlehampton cycle path.
The scheme will be completed by the end of April.