Based on notes written for workshop and seminar participants, the paper focuses on the problem of identifying the functions of roads as a basis for local traffic management schemes and planning new or modified local networks. The conventional terminology usually encountered in Australian practice is identified, and its essential characteristics - that road systems are tributary in character, and that each class is defined by a balance of traffic and access functions - are queried. Conflicts between functions result, even on local streets. In comparison, the two-class separate-function system of classification stresses that any level of traffic distributor must serve minimal access functions, and vice versa. The practical The practical application of such a concept to new and existing networks is discussed. It is suggested that new development should not follow the conventional `balanced-functions' model which permits normal frontage uses up to quite high levels in the traffic hierarchy. A `separate functions' model based on UK guidelines is advocated. Thus, frontages to roads serving any traffic distribution function should be minimised. (A)
Abstract