Clark, a Conservative councillor from the neighbouring Cranfield and Marston Moretaine ward, said: “We need to be able to run our lives alongside all the visitors Universal will bring.

“As I wade through the huge mass of planning documents in the consultation, I am increasingly worried the traffic management doesn’t stack up.”

She said a major concern was the assumption in the traffic modelling that most visitors would arrive after the weekday morning rush hour.

The transport assessment suggests this pattern will prevent overlap with commuter traffic and reduce pressure on the roads.

But Clark said if that assumption was wrong, there could be congestion across Marston Vale and beyond.

“If there’s a problem on the A421 or the motorway, it’s fair to assume we are likely to get congestion as road users try to find alternative routes,” she warned.

The councillor also raised concerns about junction 13 of the M1, which is a key access point for the proposed park.

The assessment said there would be some impact on the junction, but “not… to a degree that would result in a change to the nature of the existing congestion”.

Clark said she was also worried about the lack of contingency planning in the event of motorway closures or traffic incidents.

The BBC has contacted Universal Destinations & Experiences for comment.

A public consultation on the proposals, external will close at midday on 31 August.