PRODUKTIVITAS ANGKUT TRUK DAN TRUK SEMI-TRAILER

An investigation on log hauling by truck and semi-trailer truck has been carried out at 14 concession areas in Sumatera and 5 concession areas in South Kalimantan in 1980 and 1981. The investigation comes to the following conclussions : • 1. Logging Companies in Riau, Jambi and South Sumatera use poorly constructed forest roads without any graveling. • 2. On the other hand those in South Kalimantan are relatively good graveled roads. • 3. Effective hauling outputs of trucks range from 91 to 361 m3km/round trip hour, with an average of 247 m3 km/round trip hour, and those of semi-trailer truck from 265 to 841 m3 km/round trip hour, with an average of 494 m3 km/round trip hour. There is pronounced linier relation between hauling distance and round trip time