NATIONWIDE SURVEY OF PAVEMENT TERMINAL SERVICEABILITY

A NATIONWIDE SURVEY WAS CONDUCTED ON 12,000 MILES OF HIGHWAY PAVEMENT SCHEDULED FOR RESURFACING. THE PURPOSE OF THE SURVEY WAS TO ESTABLISH A SERVICEABILITY INDEX FOR PAVEMENTS WITH SURFACES NO LONGER CONSIDERED ACCEPTABLE TO TRAFFIC. THIS INDEX, CALLED THE TERMINAL SERVICEABILITY INDEX, WAS NEEDED TO MAKE THE AASHO ROAD TEST EQUATIONS USABLE IN PREDICTING THE LIFE OF NEW PAVEMENTS AND THE REMAINING LIFE OF PAVEMENTS IN SERVICE. NATIONWIDE, THE AVERAGE TERMINAL SERVICEABILITY INDEX WAS DETERMINED TO BE 2.2 FOR PRIMARY RIGID PAVEMENTS, 2.1 FOR PRIMARY FLEXIBLE PAVEMENTS AND 1.9 FOR SECONDARY FLEXIBLE PAVEMENTS. SECONDARY RIGID PAVEMENTS WERE NOT INCLUDED IN THE SURVEY BECAUSE OF THE SCATTERED LOCATIONS OF THE RELATIVELY FEW SUCH PAVEMENTS SCHEDULED FOR RESURFACING. WHEN ALL CLASSES OF PAVEMENT WERE CONSIDERED, NO PARTICULAR REGION COULD BE SINGLED OUT AS CONSISTENTLY RESURFACING AT EITHER A HIGHER OR LOWER SERVICEABILITY INDEX THAN ANY OTHER REGION. A SLIGHT INDICATION EXISTED THAT THERE WAS MORE VARIATION IN RESURFACING PRACTICES AMONG STATES THAN WITHIN STATES.

Media Info

  • Media Type: Print
  • Features: Appendices; Photos; References; Tables;
  • Pagination: pp 26-40
  • Monograph Title: Extension of AASHO road test concepts
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00206202
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Dec 12 1994 12:00AM