Title:

NH 155 at Madbury Road Intersection Improvements

Capstone Team 5 worked with the New Hampshire Department of Transportation (NHDOT) to develop alternatives for the existing intersection of NH155 and Madbury Road in Madbury, NH. The chosen alternative will aim to improve overall intersection safety while minimizing delays. The NHDOT and the towns of Madbury and Durham have raised mutual support for safety improvements at the intersection. In the preliminary stage of the project, a decision matrix was created to evaluate five different traffic control methods. Signalizing the intersection was determined to be the most effective approach to mitigate current concerns including signage placement, poor sight lines, driver speed compliance, backups on Madbury and Town Hall Road, and illegal driver behavior. Primary deliverables to be provided by Capstone Team 5 include the development of signal alternatives, a final design report, and a cost estimate.

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