SUPPORTS ITEM NO. 1 T&T COMMITTEE AGENDA MAY 14, 1997 ADMINISTRATIVE REPORT Date: 30 April 1997 Dept. File No. CC File: 5761-1 TO: Standing Committee on Transportation and Traffic FROM: General Manager of Engineering Services SUBJECT: Supplemental Report to the Traffic Plan for Burrard and Cypress CONSIDERATION K. THAT the work on Burrard from 1st to 3rd be done with minimum (3.7m) curb-lane width, to reduce pavement width, and property and construction costs by $170,000. GENERAL MANAGER'S COMMENTS The General Manager of Engineering services submits K for CONSIDERATION. PURPOSE To offer an alternative design on Burrard Street between 1st and 3rd Avenue which will reduce property and construction costs, and pavement width by reducing curb-lane widths. DISCUSSION This update is supplementary to the report of March 27, 1997 on design modifications to Burrard Street. In that report, the design proposed includes bicycle lanes north of 1st Avenue, and wide 4.0m curb lanes from 1st Avenue to 3rd Avenue. At the April 9, 1997 Standing Committee meeting, a number of delegations from the Cycling Community were heard, and they indicated that the wide lanes on Burrard were not an important part of the plan. The trade-off discussed was that with the wider curb lanes, vehicles can more easily pass bicycles, but the speeds are higher. Furthermore, wider pavement means greater crossing distances for pedestrians, and higher property costs. The curb-lane width needed to provide space for trucks and buses in the absence of bicycles is 3.4m (11 ft.) Motor vehicles would need to slow down and follow bicycles or change lanes to go around bicycles. If this curb-lane width was to be used, it could reduce project costs by approximately $365,000. However, this could bring vehicles very close to cyclists and is not recommended. The minimum width needed for vehicles to pass bicycles within a lane is 3.7m (12 ft.), which is the current curb-lane width on Burrard. The initial design (geometric YD 632, Recommendation A) provides for wider, 4.0m (13 ft.) curb lanes, which exceed the minimum needed for vehicles to pass bicycles. This width would provide a more comfortable space for cyclists. It has been Engineering's position, as expressed in the Comprehensive Bike Plan and the March 27 report, that safety is increased by providing more space for bicycles to integrate on busy arterial streets. However, there are alternative views and some bicycle groups are advocating reduced pavement widths to reduce vehicle speeds. If the curb-lane widths were set at 3.7m instead of 4.0m, significant cost reductions would be realized, particularly due to reduced property costs. The cost reductions are as follows: Reduced Property Reduced Construction Costs Costs Total 1st to 3rd $165,000 $5,000 $170,000 (3.7 m curb lane) Therefore, the project cost could be reduced from $1,900,000 to $1,730,000 (a 9% decrease). The proposal outlined in this supplementary report would still include the bicycle improvements on Cornwall at Burrard, the left-turn bays along Burrard, and the bicycle lanes on Burrard from Cornwall to 1st Avenue. The bicycle lanes would connect Burrard Bridge to 1st Avenue and the Cypress Bikeway, and then Cypress could be used as an alternative to Burrard Street south of 1st Avenue. Cyclists would be encouraged through signage and pavement marking to take the Burrard/1st/Cypress routing. Experienced cyclists would likely continue to choose Burrard Street to travel south of 1st Avenue, which would be accommodated by the proposed 3.7m curb-lane widths. CONCLUSION At the April 9, 1997 Standing Committee meeting, the bicycle community recommended minimizing the pavement width on Burrard Street, in lieu of wider curb lanes. To reduce the pavement width and property costs, the proposed work could be done with 3.7m curb lanes from 1st to 3rd Avenue. Cyclists would then be encouraged to use the Cypress Bikeway south of 1st instead of Burrard. By reducing the curb lanes as suggested, the project cost would be reduced by $170,000 (9%). This option is provided for CONSIDERATION. * * * * *