Friends of the Earth has criticised proposals from fracking company Third Energy to move 600 HGVs through Kirby Misperton as 'dangerously inadequate' after a traffic expert highlighted flaws in the plans.
Third Energy's revised Traffic Management Plan is required before operations start.
North Yorkshire County Council must decide whether or not to approve these plans by Thursday, 20 July.
The independent traffic report prepared for Friends of the Earth raises concerns over the safety of pedestrians and visitors to Flamingo Land faced with large lorries on narrow country roads.
It highlights a lack of clarity over the use of alternative routes and the impact of traffic to Flamingo Land.
However, in a statement Third Energy said it had consulted with the police and local community, to ensure its operations are safe and have minimal impact upon the local area.
