Simultaneous analysis of a signalized intersection

This paper discusses a method of analysis for a signalized intersection which considers prevailing geometric, traffic, and signal operating conditions simultaneously. The present Highway Capacity Manual recommends the analysis procedure on a module-by-module basis. Traffic engineers should prepare intersection design alternatives with estimated or assumed parameters of geometric, traffic, and signalization conditions. Since these parameters of the prepared design alternatives influence the analysed results, trial and error procedure is required in order to obtain appropriate plans. In this paper, a signalized intersection is viewed as a time and space sharing system and is formulated as one of the scheduling problems. The continuous and discrete nature of design parameters are examined and a set of constraints and objective functions is described. Performance of the proposed method is illustrated by a numerical example.