Abstract
Congestion on the freeway is more frequent due to several traffic incidents, namely traffic accidents, debris on the road, vehicle breakdown, and collision with guardrails than any other incidents. These, in turn, affect the operational performance of the freeway by increasing queue length, volume, and density. Consequently, effective freeway management strategies can help to minimize these impacts. The study investigates and summarizes existing studies to identify the reasons for and effects of the traffic incidents. Attention is given to the available solutions of the freeway traffic incidents management. The ultimate goal of this study is to identify the gaps which are not yet addressed to improve the operational effectiveness of the freeway. This study was conducted through a comprehensive literature review of existing refereed publications, established standards, and formal guidelines. Literature was sought through the Transport Research International Documentation (TRID) database, IEEE Transactions database, and google scholar search engine. Research focusing on freeway traffic incidents is a growing concern in transportation operations, as transportation network performance depends on it. Due to the advancement of technology, emerging vehicle technologies like connected vehicles have the potential to address these problems affecting the US transportation system and revolutionize mobility in the future. The study can serve as a reference for the researchers that are involved in freeway traffic operations.
Highlights
Freeway traffic incidents are an important factor to estimate the performance measurement of the freeway
The study can serve as a reference for the researchers that are involved in freeway traffic operations
Proper management of freeway traffic operations is a vital issue as the number of traffic increases day by day, and lack of infrastructure development to support them
Summary
Freeway traffic incidents are an important factor to estimate the performance measurement of the freeway. The most common form of traffic incidents are accidents, debris on the freeway, mechanical breakdown of the vehicles, and roadside fires [1] [2] [3]. More comprehensive definition is “incident is any non-recurring event reduces the capacity of the roadway or increases the demand Such events include traffic crashes, disabled vehicles, spilled cargo, highway maintenance, and reconstruction projects, and special non-emergency events.” [4]. Congestion can be caused by routinely traffic volume at bottleneck known as recurrent congestion or traffic incidents such as traffic accidents, debris on the freeway, and roadside fire, mechanical breakdown of the vehicles, and special events known as non-recurrent congestion. Effective incident management strategies are essential to improve the adverse traffic conditions
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