00815159

Monograph

The inclusion of test pits in the materials sampling and testing activities for the General Pavement Sections (GPS) portion of the Long Term Pavement Performance (LTPP) program has been a matter of great importance to the Strategic Highway Research Program (SHRP) research, and great interest to the highway agencies involved in it. Inclusion of test pits offers the opportunity to optimize the LTPP testing efforts and to contribute vital information on the performance-related behavior of subsurface pavement layers and subgrades. The rationale for test pits is contained in the appendix of this document. Although the advantages of test pits are widely recognized, many agencies have voiced concerns about motorist and worker safety. To reach a workable balance between the research contribution of test pits and the practical problems associated with them, SHRP has adopted guidelines that include both essential and desirable elements.

Operational Memorandum
No. SHRP-LTPP-OM-004

English

9 p.

1989-1

Appendices (1)

Guidelines; Highway safety; Materials tests; Occupational safety; Operations; Pavement layers; Pavement performance; Pits; Research; Sampling; Subgrade (Pavements); Testing; Traffic safety

General Pavement Section; Long-Term Pavement Performance Program; Strategic Highway Research Program

Administration and Management; Design; Highways; Pavements; Research; Safety and Human Factors; I22: Design of Pavements, Railways and Guideways

TRIS, TRB

Aug 16 2001 12:00AM