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Redesign of 16th Avenue / SW Marine Drive Intersection Detailed Design Report

University of British Columbia. Campus and Community Planning

The intersection of Southwest Marine Drive (SW Marine Dr.) at 16th Avenue (16th Ave.) is a major car-oriented entry gateway to the University of British Columbia (UBC). Due to the rapid development of residential buildings nearby, the necessity of an intersection redesign has been further emphasized as a result of the increase in active transportation. The original intersection was not capable of handling the active transportation of the time, let alone the increased volume of today and the future. The objectives for this redesign are as follows: - Prioritize the safety of active modes of transportation, - Reduce the speeds of motor vehicles entering the intersection, - Minimize land usage requirements while not encroaching on preoccupied property, - Effectively retain stormwater on site, - Act as an entry gateway to welcome travelers to the campus. Our team followed relevant codes and standards in the geometric design of the intersection, analyzing it in SIDRA based on traffic flow data collected during the PM peak hours of a regular weekday. AutoCAD, Civil 3D, and ArcGIS were used to develop drawings while Sketchup was used to develop 3D renders of the final design. The proposed intersection design features a 55 m diameter roundabout with a truck apron. The westbound right-turn slip lane was removed to maintain four lanes of traffic on each leg, with horizontal deflection on the northbound approach to calm traffic. The pedestrian crossing and crossride across 16th Ave. and the crossride across SW Marine Dr. at the north-end of the intersection are equipped with Rectangular Rapid Flashing Beacons (RRFBs). An underground stormwater detention tank and an entry gateway structure rests in the centre roundabout island. The cost of the project is estimated to be $6.7 million, with a construction start date of May 2024 and completion date in November 2024. For detailed design drawings, refer to Appendix A. 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.”

Report

eng

2024-07-30

Attribution-NonCommercial-NoDerivatives 4.0 International

http://hdl.handle.net/2429/88762

Unreviewed

http://creativecommons.org/licenses/by-nc-nd/4.0/