College of Engineering Unit:
In Tumalo, Oregon, the intersection of US20 and O.B. Riley Road/Cook Avenue has been notorious for high traffic volumes. The high traffic volumes have resulted in numerous issues; including angle crashes, deteriorating pavement, and significant mobility issues. Due to the frequent crashes that occur, the intersection has been heavily monitored by the Oregon Department of Transportation. The engineers of group TL04 have been tasked by ODOT to develop a redesign of the Tumalo intersection to reduce the issues that have been occurring. The engineers have decided to redesign the intersection into a roundabout, allowing for constant mobility and reducing common crashes that occurred prior to the redesign (angle crashes). Within the redesign there are two disciplines: Transportation and Water Resources. The Transportation engineers will be analyzing the traffic patterns at the intersection, where a design alternative can be produced that prioritizes safety and efficiency for the drivers. A paving plan for the corridor will also be created to address deteriorating pavements. Alternatively, the Water Resource Engineers will determine the best ways to mitigate stormwater runoff for the selected intersection redesign.
