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Public Roads

New CVO Technologies Hit The Road

There's a white 18-wheel tractor-trailer rig presently criss-crossing the country, traveling from city to city, from college campuses to roadside weigh stations, from convention centers to government office complexes.

Puttin' on The RITS

The Hanging Lake Tunnel Traffic Operations center near Glenwood Canyon monitors 280 kilometers of I-70 in northwestern Colorado.

The Current Status of ITS in Japan

Motorization has rapidly advanced in Japan. The size of the country is only 4 percent that of the United States, but the number of automo- biles owned has reached 66 million, which is 33 percent that of the United States.

Utah's I-15 Design-Build Project

Utah's $1.59 billion Interstate 15 design-build project provides for the reconstruction of 26 kilometers of interstate mainline and the addition of new general purpose and high-occupancy-vehicle (HOV) lanes through the Salt Lake City metropolitan area.

Wetland Mitigation: An Early Effort

In 1986, the Illinois State Toll Highway Authority began construction of the 28-kilometer North-South Tollway (Interstate 355) in the western suburbs of Chicago. Construction of this roadway filled slightly more than 30 hectares of wetlands, and Section 404 of the Clean Water Act required compensatory replacement or mitigation.