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Vehicle Miles of Travel (VMT)

A standard areawide measure of travel activity. Most conventional VMT calculation is to multiply the average length of trips by the total number of trips.

Transportation Management Organization (TMO)

A voluntary association of public and private agencies and firms joined to cooperatively develop transportation-enhancing programs in a given area. TMOs typically manage transportation demand in congested urban and suburban communities. The first Denver region TMO...

Visibility Standard

Established by the Colorado State Legislature, the visibility standard requires that not more than 7.6 percent of the light in a kilometer of air be blocked, averaged over four daylight hours. The standard is equivalent to a visual range of 32 miles and was...

Transportation Improvement Program (TIP)

Document prepared by states and regional planning commissions (i.e., DRCOG) identifying projects to be funded under federal transportation programs for a full-year period. If it is not included in a conforming TIP, a project is ineligible for federal funding.

Transportation Control Measures (TCMs)

Local actions to adjust traffic patterns or reduce vehicle use in order to reduce air pollutant emissions. These may include High-Occupancy Vehicle lanes, provision of bicycle facilities, ridesharing, telecommuting, etc.