Roberts, P.W.D. Primary Author mixed material bibliography TRRL 1983 id Indonesia

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19 p.; fig.; phot.; tab. This report gives results of measurements of the condition of unsealed roads made over a period of more than two years. The effects of the maintenance activities of grading and dragging on road surface conditions are assessed. During the study some of the running surfaces deteriorated sufficiently to significantly increase road user costs. Roughness was the aspect of running surface condition which had most effect on vehicle running costs ROAD PERFORMANCE 625.7(047.31) Perpustakaan Direktorat Bina Teknik Jalan dan Jembatan Direktorat Jenderal Bina Marga - Kementerian Pekerjaan Umum (NPP: 3273244A00000001) 625.7(047.31) Rob p 0000001874 My Library 625.7(047.31) Rob p 1852 machine generated