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

Mobility OptionsThere is some shift from transit to auto modes as I-66 is made available to non-HOV travelin the peak direction;Person throughput increases at the Beltway and Potomac River cutlines. A review of cutlinedata indicates that HOT lanes are not attractive for short, local trips and that mostlylonger distance trips are taking advantage of the I-66 HOT lanes; andAs a result of the newly available peak-direction HOT lanes, the cutlines show a decrease inperson throughput on transit.Figure 2.9Daily PMT – Option B1Additional observations about this mobility option are noted below.The toll in this option is higher than the toll in Option B2 because there is less roadwaycapacity to sell.Queuing at the Theodore Roosevelt Bridge from I-66 and U.S. 50 would need to beconsidered if this option is incorporated into a mobility package. The assessment wouldneed to consider the impact on traffic and congestion at the bridge because a large numberof trips produced in the study area are destined for the D.C. Core (33 percent in 2007 and 25percent in 2040).Option B2 – I-66 Bus/HOV/HOT Lane System Option 2As illustrated in Figure 2.10, this option adds a lane to I-66 in each direction and converts allthree lanes into an electronically tolled Bus/HOV/HOT roadway. The widened I-66 profilewill include three lanes total, except on the portion east of the split for the Dulles Connector2-18 I-66 Multimodal Study