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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/17515

Title: Measuring Highway Work Zone Throughput
Authors: Hicks, Carolyn
Advisor: McCabe, Brenda
Department: Civil Engineering
Keywords: Work Zone
Throughput
Capacity
Road Construction
Issue Date: 10-Aug-2009
Abstract: The focus of this project is highway construction zones and the impact of lane closures on traffic. By measuring throughput (the number of vehicles that can flow through a work zone in a given amount of time), analysis was performed to determine the factors that affect this value. Successful data collection uncovered a paradox. Often work zones would see no queuing, indicating the lane could have been closed for longer hours. Alternatively sites with forced flow allowed fewer vehicles through the site than expected, indicating that the design value is too high, requiring shorter lane closure hours. A generic model for throughput was developed as well as a better functioning highway specific model. In addition to these models, this project developed a spreadsheet-based form of analysis named SZUDA (Simplified work Zone User Delay Analysis) that determines queue length and approximate costs associated with road user delay.
URI: http://hdl.handle.net/1807/17515
Appears in Collections:Master
Department of Civil Engineering - Master theses

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