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Public Roads

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Public Roads

We're on The Eve of Construction

Visualize the start of construction on a major public project. Men and women with shiny shovels participate in the symbolic ground-breaking. Bulldozers rumble to life. Crews strap on their hard hats, and the project is underway.

Hydraulics Testing of Wilson Bridge Designs

The development process for construction of the new Woodrow Wilson Bridge across the Potomac River near Washington, D.C., is receiving a great deal of public scrutiny. The new bridge will be built immediately south of the existing Woodrow Wilson Bridge, which is an essential element of the I-495 beltway around the nation's capital.

The proposed design has two parallel six-lane bridges to replace the existing single six-lane bridge and, like 

Wireless Communications: A Modern Necessity

Imagine that you are sitting in afternoon rush-hour traffic that is extremely congested because of a "fender-bender" and the ensuing clean-up efforts. You will not be able to pickup your child from the day-care center, and you need to let your spouse know. You wish you had a wireless telephone, but you do not have one because there is no wireless service in your community. Impossible, you say.

TRANSIMS Is Coming!

TRANSIMS is a series of integrated transportation and air quality analysis and forecasting models being developed at the Los Alamos National Laboratory (LANL). The principal components of TRANSIMS are an activity generator, an intermodal route planner, a traffic microsimulation, and an environmental analysis module. 

The ITS Metropolitan Model Deployment Initiative

Hooray, it's celebration time. Actually four celebrations coast-to-coast, starting last June in Seattle and running through October in New York, marked the completion of a major step in achieving the goal of a national intelligent transportation infrastructure by 2005.

Maintaining The Customer-Driven Highway

As the vast U.S. highway system grows older, highway agencies are shifting their focus from building new roads and highways to preserving their investment in the existing system

Urban Freeway Renewal

Frequently, highway officials are faced with a situation like this: An old pavement on a heavily traveled route in the heart of an urban area has served its useful life - and more.