Open Collections

Abstract

The redesign of the current Chancellor Boulevard-East Mall intersection will be a four-legged signalized protected intersection. The intersection includes crosswalks along all intersection legs to allow safer bike and pedestrian crossings. The largest change made to the intersection included condensing the intersection by bringing the south leg eastward, significantly shortening crossings. The intersection provides dedicated sidewalks and bike lanes, providing ample separation between active transportation and traffic. The design meets client criteria by prioritizing active transportation, improving safety through traffic calming, and enhancing intersection intuitiveness. Raised concrete barriers at corners protect pedestrians and cyclists from right hooks. Reduced lane widths and curb radii help to slow cars down their turns and as they move through the intersection. Aligning intersection legs closer to 90 degrees provides a more typical intersection design, improving intersection familiarity for all users. Further, the design meets projected transportation demands (peak hour volume of 950 vehicles in 20 years), with minimal vehicle delays to achieve a level of service (LOS) of A in the AM and B in the PM. Queue lengths formed were deemed acceptable, as they do not cause blockages at adjacent intersections and driveways. The client has requested the design of an eight-metre-tall sign that establishes the intersection as a prominent gateway to campus. After consideration of precedent examples, Capstone Consulting has developed a mixed-material structure composed primarily of reinforced concrete, featuring pressure-treated timber and steel accents. Integration with existing campus architecture was prioritised, providing a sense of unity and significance to the area. The proposed rainwater management system plans to mitigate cliff erosion issues by retaining rainwater onsite. After thorough consideration of an underground retention tank and implementation of rainwater reuse, it was decided that these systems would not be efficient or economically feasible. As such, our rainwater system will consist of green infrastructure. The main storage component is an infiltration swale with retention capabilities, recommended as the most sustainable and efficient solution. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”