Design of Low-Volume Concrete Roads. Tables Or Analytical Procedure?

This paper deals with the problem of thickness design of low-volume roads. It examines the possible use of tables of minimal thickness or analytical methods, especially developed for low-volume roads (as in France and Belgium). Attention has been paid to realise the influence of design factors, such as traffic and soil bearing capacity, using the sensitivity analysis. The main remarks are: - the comparison between tables and analytical procedure is very difficult. - the use of one or the other design procedure has to be decided according to the existing conditions and possible available data. The author has developped tables, permitting the design of such roads, for various traffie and soil conditions.