Longer Combination Vehicles: Potential Infrastructure Impacts,
Productivity Benefits, and Safety Concerns (Testimony, 09/14/94,
GAO/T-RCED-94-306).

At least 14 states and six turnpike authorities allow limited operations
of long multiple-trailer trucks commonly referred to as longer
combination vehicles. The vehicles can transport a cargo at less cost
than can shorter combinations because fewer tractors and drivers are
needed and less fuel is used. This testimony focuses on three longer
combination vehicle issues: (1) the economic impact on
infrastructure--pavements, bridges, and interchanges--that result from
expanded longer combination vehicle operations; (2) the potential
benefits from and industry's use of longer combination vehicles; and (3)
the safety of longer combination vehicle use.

--------------------------- Indexing Terms -----------------------------

 REPORTNUM:  T-RCED-94-306
     TITLE:  Longer Combination Vehicles: Potential Infrastructure 
             Impacts, Productivity Benefits, and Safety Concerns
      DATE:  09/14/94
   SUBJECT:  Trucking operations
             Freight transportation operations
             Transportation research
             Safety regulation
             Highway safety
             Cost control
             Transportation costs
             Transportation safety
             Shipping industry
             Traffic regulation

             
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