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.

Telecommuting

Telecommuting is a work arrangement in which employees enjoy flexibility in working location and hours. In other words, the daily commute to a central place of work is replaced by telecommunication links.