This report describes the design of a 60-point traffic census in Kenya and results for 1970. An analysis is made of the daily flows at each site, the percentage composition of the traffic, and the amount and distribution of daily travel. It is estimated that 25 per cent of rural roads carry fewer than 10 vehicles per day and only 11 per cent carry more than 1000 vehicles per day. Over 66 per cent of all travel takes place on the 14 per cent of the rural road system designated as Trunk routes. Minor roads comprising 45 per cent of the rural road length carry only 7 per cent of all travel. The results also suggest that developed and developing countries have a similar asymmetrical distribution of travel over their road systems, e.g. 50 per cent of the traffic is on the 5 per cent busiest roads. There are wide variations in the amount of travel in different Provinces, which are not explained by the size of the populations. The proposal to introduce automatic counters at 25 of the sites at the end of 1970 to monitor traffic flows continuously and other census improvements are discussed. (Author/publisher)
Abstract