LONG TERM OBSERVATIONS ON SELECTED SECTIONS OF ROAD, PART 2.

LANGZEITBEOBACHTUNGEN AN AUSGEWAEHLTEN STRASSENABSCHNITTEN (TEIL 2)

IN ORDER TO CHECK THE APPLICATION OF THE RESULTS OF THE AASHO ROAD TEST TO GERMAN CONDITIONS LONG TERM OBSERVATIONS ARE BEING UNDERTAKEN ON 170 SELECTED SECTIONS OF ROAD. THESE COMPRISE DETERMINATION OF WEATHER CONDITIONS, DETERMINATION OF LAYER THICKNESSES BY BOREHOLES, STUDY OF UNBOUND LAYERS, ESTABLISHMENT OF SURFACE DAMAGE, MEASUREMENTS OF SKIDDING RESISTANCE, TRANSVERSE PROFILE AND TRAFFICABILITY, DETERMINATION OF BENKELMAN SETTLEMENT VALUES, DYNAMIC PLATE BEARING TESTS, WORKING OUT OF ELASTIC CONSTANTS, AND DETERMINATION OF TRAFFIC LOADING AND MAINTENANCE COSTS.