Traffic Volume Trends Report

Traffic Volume Trends is based on hourly traffic data reported by the states. The vehicle miles traveled (VMT) is calculated using the Highway Performance Monitoring System (HPMS). HPMS includes the annual average daily traffic (AADT) by road segment. The AADT is then multiplied by the length of the road segment and summed for all road segments which gives the annual VMT. The monthly VMT is estimated by combining the change rates for each month with the most recent annual VMT.

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US Monthly Total Vehicle Miles Traveled

Current (Sep 2018) Previous (Aug 2018) % Chg Prev % Chg 1Y
260555.0 286609.0 -9.09% -0.81%

Major Traffic Volume Trends Indicators

Indicator Period Value % Chg Prev
US Monthly Total Vehicle Miles Traveled (NSA) Sep 2018 260555.0 mi -9.09%
US Moving 12 Month Total Vehicle Miles Traveled (NSA) Sep 2018 3.22M mi -0.06%
View and sort all 2 Traffic Volume Trends Report Indicators
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