Smart Traffic Systems: A Comprehensive Review of Recent Advancements, Technologies, and Challenges

TL;DR

This paper provides a comprehensive review of recent advancements, technologies, and challenges in Smart Traffic Systems (STS), highlighting their technological approaches, sensor technologies, communication tools, and practical applications.

Contribution

It offers a detailed taxonomy and analysis of existing STSs, aiding researchers and policymakers in selecting suitable systems for urban traffic management.

Findings

Various sensor technologies are used for traffic detection.

Communication tools have evolved to improve system efficiency.

Challenges include technological integration and system scalability.

Abstract

With an ever-growing urban population, the need for transportation is increasing at an alarming rate. Thus, the massive increase in the number of vehicles is creating traffic congestion which creates various environmental, societal, and economic problems. To tackle traffic-related issues, several Smart Traffic Systems (STS) have been proposed and implemented. As a result, a comprehensive review of STS has become necessary. The main objective of this paper is to provide an overview and a thorough review of the existing STSs in terms of various technological approaches, traffic detection technologies using different sensors, various networking/communication tools, and their pros and cons. The paper also provides information on major STS services. In addition, challenges related to modern STS are identified. Therefore, the taxonomy of STSs provided in this paper will aid researchers, urban planners, and policymakers to recognize and install the best-suited STSs for their settings.