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| | Wikinfo Freeway |
 | | In the United States, many freeways are part of the Interstate Highway System, which superseded the largely at-grade United States highway system (though most of the latter highways are still in use). |
 | | The concept of limited-access automobile highways dates back to the New York City area Parkway system, which began to be constructed in 1907 - 1908. |
 | | Intelligent transportation systems (ITS) are also increasingly used, with cameras to monitor and direct traffic, so that police, fire, ambulance, tow, or other assistance vehicles can be dispatched as soon as there is a problem, and to warn drivers via variable message signs, radio, television. |
| www.wikinfo.org /wiki.php?title=Freeway (972 words) |
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