... a relationship correlating all factors and yielding the value of skid resistance under any speci®c conditions. This paper deals with the road surface contribution to tyre±pavement skid resistance. Road surface is expressed through micro/macrotexture depth and spacing. Relative correlation equations have been...

... speed v, curve radius R and running gauge Gr and is given by the equation Eeq R Grv2 Grv2 g2 v4 Rg R2 (1) 3. Track which carries a mixture of passenger and freight traffic, which travel at different speeds, cannot be canted to avoid lateral forces. Free curving rarely occurs even where...

... effects are unlikely to be controlled for the unaffected parotf the networks. fully : indeed, there is a tendency for an increase in accidents at the controls during the COBA equations after period due toa reverse regression-to-mean 28. The analysis described above relies on effect which tends...