Related Experiment Video
Updated: Sep 13, 2025

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation
Published on: February 1, 2020
Systematic review and meta-analysis exploring safety performance measures of work zone
Faijan Ali Ansari1, Agnivesh Pani2, Simon Oh3
1Department of Civil Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad, India.
None:
Work zones are widely recognized as major contributors to road fatalities and traffic congestion. Although extensive research has explored the relationship between work zone crashes and contributing factors, a comprehensive systematic review and meta-analysis remain absent. This study addresses this gap by exploring four key research questions: (i) Which elements of work zones are most crash-prone? (ii) What factors affect work zone severity and crash frequency? (iii) Which methods are used to predict crash occurrences and crash severity? (iv) How does the traffic volume affect crash occurrence with different severity levels in the work zone? The review identifies factors influencing crashes, including work zone characteristics, environmental conditions, roadway features, temporal aspects, driver characteristics, and crash attributes, and evaluates various modeling approaches. Moreover, a meta-analysis quantifies the association between traffic volume and crash severity, highlighting key findings for safety measures and developing targeted strategies for improving work zone safety.
Related Concept Videos
Survey Safety
Zones of Protection
Protective zones are defined by closed dashed lines, containing one or more components. A key characteristic of these zones is the strategic placement of...
Design Consideration
The factor of safety is another key...
Hazard Ratio
For example, in a clinical trial...
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...

