Proposals to alter junction 15 of the M1 in Northampton, paid for by a kitchen supply company, would see the nearby A508 upgraded.
Flyers sent out to village residents by Howdens, who have submitted a planing application to build a 2.6 million square foot warehouse just south of the town - give details of how they would improve local roads.
The flyer says: “The development would deliver significant improvements to junction 15.
“The A508 between junction 15 and the site will also be dualled as part of the proposals.
“The applicants are exploring ways to improve the junction with a view to helping eliminate peak hour congestion.”
The A508 would be the main access route to the site, which could eventually employ up to 1,000 people and would also see a new roundabout created to handle more traffic.
Documents submitted to Northampton Borough Council say: “There will be a single main point of vehicular access to the site from the A508.
“A new roundabout is proposed on the A508 as part of the site access, with a stretch of dual carriageway north
from the roundabout to the Junction 15 roundabout.”
Two emergency access routes are also proposed to the site, one to the A508 on the east of the site, and the other to Collingtree Road on the west.
Both, Howdens says, would only be used by vehicles “when and if the main site access is blocked (for example by a broken down HGV)” and to ensure emergency vehicles can access the site.
Howdens also say it would ban all of its lorries from turning right (south) towards Roade when leaving the site, so as to avoid adding to village traffic.