Application of fuzzy ogic to traffic signal control under mixed traffic conditions

摘要

Fuzzy logic has been widely used to develop an adaptive traffic signal controller because it allows qualitative modelling of complex systems. However, existing research has developed fuzzy logic signal controller (FLSC) based on non-mixed traffic conditions. These FLSC are not appropriate to the mixed traffic conditions of developing countries where the traffic streams consist of different types of vehicles with a wide variation in their static, dynamic and operating characteristics. This paper describes an adaptive fuzzy logic signal controller for an isolated four-way intersection suitable for mixed traffic, including a high proportion of motorcycles. Simulations are used to analyse the effectiveness of the proposed FLSC which is contrasted with an optimised fixed time controller.