This report, prepared by the Transportation Research Board Committee for the Study of Relationships Between Vehicle Configurations and Highway Design, evaluates the approach to regulation of the size and weight of trucks using U.S. roads known as the Turner Proposal. This approach had its origin in a proposal put forth in a 1984 address to AASHTO by former Federal Highway Administrator Francis C. Turner. The approach evaluated by the committee differs in an important respect from Turner's original concept: in the committee's approach, use of the new trucks would be voluntary; that is, truck operators would be offered the choice of continuing with existing equipment and weight rules or adopting the new trucks with the new weight regulations. The committee designed a package of changes in size and weight limits, safety restrictions, and procedures regarding bridge deficiencies, routing, and enforcement that would be a practical regulatory scheme for implementing the Turner concept.The B-train with nonsteering axles in all positions under the trailers would have to be restricted to a shorter length than the other Turner double-trailer prototypes if it were to maintain comparable low- speed offtracking. If B-train offtracking were improved through use of a self-steering axle, greater length would be acceptable and pavement wear reduced. However, standards for safe design andanbsp;...
|Title||:||New Trucks for Greater Productivity and Less Road Wear|
|Publisher||:||Transportation Research Board - 1990-01-01|