Drivers could face delays for up to four months after it was revealed work was to start on installing a new junction close to a busy commuter route.
Work will begin on Monday, March 3, to provide a traffic signal junction and access road to a new development off Lytham Road in Warton.
Principal highways engineer for Lancashire County Council, Graham Leathard said: “Lytham Road is a very busy route and we’ve given careful thought as to how to carry out the work while keeping disruption to a minimum.
“Any work which affects existing lanes of traffic will be done outside of peak commuting times.
“We’re very keen to avoid significant delays to people’s journeys, and particularly to avoid inconvenience as far as possible to the many people who need to access the nearby BAE Systems site.”
The junction to the development on the south side of Lytham Road will be located between the roundabout at the west end of Freckleton Bypass and the Mill Lane entrance to the BAE site at Warton.
It will provide a crossing for pedestrians and cyclists, with the existing crossing nearby to be switched off when work starts.
Work is expected to take around 16 weeks to complete, with the majority of construction to take place from Monday to Friday between 7am and 5pm.
To avoid disruption to rush hour traffic, there will be no reduction in the number of lanes on Lytham Road between 7am and 9am, and 3.30pm and 6pm.
Initially access to the site will be by the existing entrance off Old Lytham Road until direct access to the site is possible from the A584 Lytham Road.
The work is being funded by BAE Systems.
Mr Leathard added: “We’ll also do our best to work in a way which minimises inconvenience to people who live nearby, though clearly there will be some level of disruption and we’re thankful for people’s patience while this vital work takes place.”