DISCUSSION. DESIGNS AND ESTIMATES FOR LOW COST ROADS IN NORTH-EAST BRAZIL.

Keywords: DESIGN, ROADS, TROPICS, SURFACES, LOW, DRAINS, BITUMEN, SECONDARY, INDEX, ESTIMATES, COUNTRIES, TRAFFIC, FLOW, CHARACTERISTICS, TERTIARY, TROPICAL, MIXED, COSTS, DEVELOPING, MATERIALS, SCOUR, MAINTENANCE, BITUMINOUS, PLASTICITY, LOW COST, BRAZIL, SOUTH AMERICA, SURREY UNIVERSITY, SCOTT WILSON KIRKPATRICK, BRIAN COLQUHOUN, HOGH O DONNELL ZAMBIA