Minneapolis, Minn.—While major trucking companies lobby Congress to allow longer and heavier semitrailers, a just-released poll found that three of four Americans oppose longer and heavier semitrailer trucks on the highway.

“Speaking on behalf of the over 45,000 members of the National Troopers Coalition, I can tell you that law enforcement officers have known for quite some time that bigger trucks threaten highway safety, and this poll shows that the public knows it, too,” said National Troopers Coalition Chairman Mat Hodapp, a Minnesota state trooper.

The Coalition Against Bigger Trucks, a nonprofit advocacy group that opposes truck size and weight increases, commissioned the live-operator survey of 1,000 nationwide respondents. The poll was conducted January 5-8, 2015, and had a margin of error of plus or minus 3.1 percentage points.