I-66 Multimodal Study Final Report - Virginia Department of ...

Multimodal PackagesThe mode share of bicyclists affects the benefits calculations for linear and spot improvements.Therefore, two scenarios where analyzed. The first scenario uses the study area’s currentbicycle mode share of 0.9 percent. The second scenario assumes a bicycle mode share of 1.8percent for the study area. This figure is reasonable given the historic rate of increase ofbicycling and the evolution to a more bikeable and walkable land use context.The resulting benefit for each improvement is shown in Table 3.21. It should be noted thatwhile the benefit for each project can be calculated individually, it would be incorrect to simplyaggregate the benefits for all projects to arrive at a cumulative benefit. Because this calculationis fundamentally based on the number of new riders who would use each project, it isconceivable that an individual bicyclist would use multiple facilities. Therefore, a cyclist wholives within close proximity to multiple projects is likely to be counted more than once if benefitsare tallied cumulatively. To address this issue, a rider distribution multiplier of 50 percentwas applied to the cumulative total. This assumes that a new rider is likely to ride on one-halfof the new facilities. Additional research will help refine this multiplier assumption andapproach. The resulting cumulative benefit of constructing all recommended linear and spotimprovements is approximately $56 million assuming a 0.9 percent bicycle mode share and $99million assuming a 1.8 percent bicycle mode share.Table 3.21 2040 Benefit Calculations for Bicycle and PedestrianSystem EnhancementsMap IDProject NameTotal Annual Benefit(Assumes 0.9%Bicycle Mode Share)Total Annual Benefit(Assumes 1.8%Bicycle Mode Share)1 Mount Vernon Trail Widening $6,147,508 $10,936,3142 Roosevelt Bridge to Mount Vernon Trail $1,850,487 $3,313,7933 VA Route 110 South Trail Paving $2,169,749 $3,930,5194 VA Route 110 North Trail Renovation $2,183,912 $3,926,3635 Washington Boulevard Trail $1,949,016 $3,492,2346 VA Route 27 (Washington Blvd.) Bridge over$995,226 $1,787,386South VA Route 1108.1 Capital Bikeshare (East) $722,238 $722,2388.2 Capital Bikeshare (West) $1,043,232 $1,043,23210 Rosslyn Circle Area Improvements – Tunnel $2,246,333 $3,958,42611 Rosslyn Circle Area Improvements – Street Level $2,267,465 $3,996,78812 Meade Street Bridge $2,088,904 $3,677,60213 Custis (I-66) Trail Renovation $5,907,706 $10,473,67214 Arlington Boulevard Trail (Taft to Ft. Myer) $3,190,398 $5,674,28915 Arlington Boulevard Trail (10 th to Taft) $2,920,256 $5,183,05216 Arlington Boulevard Trail (Pershing to Queen) $3,404,951 $6,055,06617 Arlington Boulevard Trail North Side Trail Extension $3,622,517 $6,442,66618 South Washington Boulevard Trail $3,646,587 $6,545,36520 Mount Vernon Trail Extension from North Randolph Streetto the Arlington County Line$424,401 $761,240I-66 Multimodal Study 3-85