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Virginia Tech

1. Han, Wenjun. A Connected Work Zone Hazard Detection System for Highway Construction Work Zones.

Degree: MS, Industrial and Systems Engineering, 2019, Virginia Tech

Roadway construction workers have to work in close proximity to construction equipment as well as high-speed traffic, exposing them to an elevated risk of collisions. This research aims to develop an innovative holistic solution to reduce the risk of collisions at roadway work zones. To this end, a connected hazard detection and prevention system is developed to detect potential unsafe proximities in highway work zones and provide warning and instructions of imminent threats. This connected system collects real-time information from all the actors inside and outside of the work zone and communicates it with a cloud server. A hazard detection algorithm is developed to identify potential proximity hazards between workers and connected/automated vehicles (CAV) and/or construction equipment. Detected imminent threats are communicated to in-danger workers and/or drivers. The trajectories and safety status of each actor is visualized on Virginia Connected Corridors (VCC) Monitor, a custom web-based situational awareness tool, in real-time. To assure the accuracy of hazard detection, the algorithm accommodates various parameters including variant threat zones for workers-on-foot, vehicles, and equipment, the direction of movement, workers' distance to the work zone border, shape of road, etc. The designed system is developed and evaluated through various experiments on the Virginia's Smart Roads located at Virginia Tech. Data regarding activities of workers-on-foot was collected during experiments and was used and classified for activity recognition using supervised machine learning methods. A demonstration was held to evaluate the usability of the developed system, and the results proved the efficacy of the algorithm in successfully detecting potential collisions and provide prompt warnings and instructions. The developed holistic system elevates safety of highway construction and maintenance workers at work sites. It also helps managers and inspectors to keep track of the real-time safety status of their work zone actors as well as the accidents occurrences. As such, with the connected work zone hazard detection system, the safety level and productivity of the workers is expected to be greatly enhanced. Advisors/Committee Members: Madigan, Michael L. (committeechair), Roofigari-Esfahan, Nazila (committeechair), Srinivasan, Divya (committee member).

Subjects/Keywords: Connected work zone; Highway safety; Hazard Detection; Construction Automation; Warning system

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Han, W. (2019). A Connected Work Zone Hazard Detection System for Highway Construction Work Zones. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/90896

Chicago Manual of Style (16th Edition):

Han, Wenjun. “A Connected Work Zone Hazard Detection System for Highway Construction Work Zones.” 2019. Masters Thesis, Virginia Tech. Accessed July 20, 2019. http://hdl.handle.net/10919/90896.

MLA Handbook (7th Edition):

Han, Wenjun. “A Connected Work Zone Hazard Detection System for Highway Construction Work Zones.” 2019. Web. 20 Jul 2019.

Vancouver:

Han W. A Connected Work Zone Hazard Detection System for Highway Construction Work Zones. [Internet] [Masters thesis]. Virginia Tech; 2019. [cited 2019 Jul 20]. Available from: http://hdl.handle.net/10919/90896.

Council of Science Editors:

Han W. A Connected Work Zone Hazard Detection System for Highway Construction Work Zones. [Masters Thesis]. Virginia Tech; 2019. Available from: http://hdl.handle.net/10919/90896

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