Helliar-Symons, R.D. Primary Author mixed material bibliography TRRL 1981 id Indonesia

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17 p.; fig.; tab. Trrl Lr 1010 Analysis of accident at 42 roundabout at which Yellow Bar experimental carriageway markings had been laid on an approach road, showed an overall reduction in the proportion of speed-related accidents on these approach roads of 57 percent. The markings appeared to be most effective in reducing fatal and serious injury accidents, whilst still reducing slight injury accidents. They were more effective in daylight than after dark and appeared to be most effective when the road surface was wet, rather than dry. They were highly cost beneficial and the accident reduction was maintained at seven pilot sites for which data for four years after installation were available ROAD MARKING 625.7(047.31) Perpustakaan Direktorat Bina Teknik Jalan dan Jembatan Direktorat Jenderal Bina Marga - Kementerian Pekerjaan Umum (NPP: 3273244A00000001) 625.7(047.31) Hel y 0000001721 My Library 625.7(047.31) Hel y 1700 machine generated