Average weekday SOV vehicle trips and miles in Arlington reduced by ACCS.
|Year||Trips Avoided||VMT Avoided|
Single occupancy vehicle (SOV) vehicle trips are the total number of unique trips made by a single private vehicle, such as an automobile, van, pickup truck, or motorcycle carrying only one person. Vehicle miles traveled is a unit to measure the distance of vehicle travel made by these vehicles. Each mile traveled is counted as one vehicle mile regardless of the number of persons in the vehicle[i]. This measure is the number of average weekday SOV vehicle trips and vehicle miles traveled that were reduced in Arlington through the programs and activities of Arlington County Commuter Services (ACCS).[ii]
Reducing the number of SOV vehicle trips and vehicle miles traveled on an average weekday in Arlington County limits harmful air pollution, traffic congestion, and roadway related costs.
Since this data was first tracked in 2008, the number of vehicle trips reduced on an average weekday has risen from 38,000 to over 41,000 (an eight percent increase), corresponding with a 39 percent reduction in the number of vehicle miles traveled.
Considering that the average lane of interstate highway carries approximately 8,000 - 12,000 vehicles in both rush periods, a reduction in trips by 41,000 is a significant benefit produced by ACCS.
Between 2001 and 2009 the number of daily vehicles miles traveled on Wilson Boulevard in Clarendon fell by 23 percent, while Glebe Road in Ballston experienced a daily vehicles mile traveled reduction of 31 percent.
- Arlington County Commuter Services internal analysis.
[i] Definition adapted from the Bureau of Transportation Statistics Dictionary.
[ii]The methodolgy used to derive these calculations is detailed in the 2008 "Making an Impact" Report, available online.