Optimization methods used by urban traffic control systems

The article presents an overview of issues related to the development of optimal control strategies in urban traffic control (UTC) systems. Attention is drawn to the complexity of the optimization task and methods for its simplification. The features of adaptive control strategies currently used in many transport networks are discussed, and methods for solving the task of finding the best control sequence are indicated. Selected solutions are briefly outlined, with an indication of the impact of various simplifications on the optimization task. The summary of the article lists other methods for finding optimal control strategies with promising implementation properties.Urban areas pose a challenge for traffic engineers. Dense street networks, diverse travel routes, and urban road policies create constraints for the development of effective traffic control systems. The street grid, formed during the development of cities and significant investments, creates a rigid mosaic of zones with varying capacity, seriously complicating traffic management efforts. The location of offices and industrial plants defines daily vehicle travel routes, while on days off and holidays, leisure spots and shopping centers become the main destinations for travel. (…)

Optimization methods used by urban traffic control systems – PDF file for download