IMPACT ON STATE HIGHWAYS OF TRACTOR-TRAILERS HAULING LOADS WIDER THAN TWELVE FEET

IN AUGUST 1972 A TRACTOR TRAILER WITH A WIDTH OF 12'9" WENT ON A TRIAL RUN OVER A VARIETY OF PRIMARY AND SECONDARY HIGHWAYS AND CITY STREETS ON A ROUTE THAT RAN FROM NORTHEASTERN TO WEST CENTRAL FLORIDA. THE ENTIRE RUN WAS MONITORED BY ACCOMPNAYING VEHICLES AND AERIAL PHOTOGRAPHY, AND OBSERVATIONS WERE ALSO MADE SUBSEQUENTLY. THE FACTORS NOTED WERE ADVERSE EFFECTS ON PAVEMENTS AND SHOULDERS, DAMAGE TO SIGNS AND OTHER ROADSIDE STRUCTURES, EFFECTS ON TRAFFIC FLOW AND DRIVER BEHAVIOR, POTENTIAL ACCIDENT SITUATIONS, AND BEHAVIOR IN WIND. ALTHOUGH THERE WERE NO INCIDENTS DURING THE TEST RUN, AND NO DAMAGE COULD BE OBSERVED, THE POTENTIAL OF THE WIDE LOAD FOR DAMAGING HIGHWAY STRUCTURES, CAUSING ACCIDENTS, AND DECREASING HIGHWAY CAPACITY LED THE STUDY TEAM TO RECOMMEND TO THE FLORIDA DOT THAT WIDTHS GREATER THAN 12 FEET NOT BE PERMITTED ON STATE HIGHWAYS.

Media Info

  • Features: Figures; References;
  • Pagination: 21 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00202298
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Jun 12 1973 12:00AM