Water nuisance and road safety : paper presented to Session II of 1978 OECD Symposium on Road Drainage, Berne, Switzerland, 22-24 May, 1978.

Factors that may contribute to accidents on wet road surfaces (reduced general visibility, glare, invisibility of markings and reduction of tyre/road surface forces) are discussed in particular the latter. Measures for counteracting water nuisance (cutting grooves, small transverse discharge channels, synthetic resin surface treatment and porous asphaltic concrete) are presented, and conclusions and recommendations are given.