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Sometimes they are combined on freeway off-ramps with "Do Not Enter" and "One Way" signs. Fatalities caused by wrong-way driving in the United States, from 1996 to 2000. Wrong-way driving (WWD), also known as contraflow driving, is the act of driving a motor vehicle against the direction of traffic. It can occur on either one- or two-way roads ...
A diagram illustrating traffic movements in the interchange Plan of rejected diverging diamond interchange in Findlay, Ohio. A diverging diamond interchange (DDI), also called a double crossover diamond interchange (DCD), is a subset of diamond interchange in which the opposing directions of travel on the non-freeway road cross each other on either side of the interchange so that traffic ...
The High Five Interchange in Dallas, Texas, United States, is a five-level interchange. In Texas, many stacks contain five levels. They usually have the same configuration as four-level stacks, but frontage roads add a fifth level. The frontage roads usually intersect with traffic lights and are similar to a grid of nearby one-way streets.
Cloverleaf interchanges, viewed from overhead or on maps, resemble the leaves of a four-leaf clover or less often a 3-leaf clover. In the United States, cloverleaf interchanges existed long before the Interstate system. They were originally created for busier interchanges that the original diamond interchange system could not handle.
reversible travel-lanes - for travelling a longer distance. median passing lanes - for a quick overtaking. median turning lanes - for stopping to turn into a facility. While reversible lane is a commonly used term, other words include: variable lanes, dynamic lanes, and flex lanes.
The Veterans Memorial Parkway in London, Ontario is a modern at-grade expressway, with intersections. A limited-access road, known by various terms worldwide, including limited-access highway, dual-carriageway, expressway, and partial controlled-access highway, is a highway or arterial road for high-speed traffic which has many or most characteristics of a controlled-access highway (also known ...
Waymo Chrysler Pacifica Hybrid undergoing testing in the San Francisco Bay Area. Waymo LLC, formerly known as the Google Self-Driving Car Project, is an American autonomous driving technology company headquartered in Mountain View, California. It is a subsidiary of Alphabet Inc, the parent company of Google .
The shields for Interstate highways (left) and U.S. routes (right) can be seen on this set of reassurance markers in Southwest Virginia indicating two sets of wrong-way concurrencies. A highway shield or route marker is a sign denoting the route number of a highway, usually in the form of a symbolic shape with the route number enclosed. As the ...