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Sig alert, Sig-alert or Sigalert in California, as well as other parts of the United States, means an incident that significantly disrupts road traffic.The term was originally the name of a pioneering system of automated radio broadcasts regarding traffic conditions, introduced in the 1950s and named after its inventor, Loyd Sigmon.
Traffic cam. Traffic reporting is the near real-time distribution of information about road conditions such as traffic congestion, detours, and traffic collisions. The reports help drivers anticipate and avoid traffic problems. Traffic reports, especially in cities, may also report on major delays to mass transit that does not necessarily ...
A traffic congestion map is a graphical, realtime or near-realtime representation of traffic flow for some particular area. [1] Data is typically collected via anonymous GPS datapoints and loop sensors embedded in the roadways, then processed by computer at a central facility and distributed as a map view to users.
At the Concord Rotary, a major traffic choke point, Route 2 becomes a four-lane surface road and intersects with Route 2A and the eastern terminus of Route 119 (which is concurrent with Route 2A). After the rotary, the road passes by the State Police (who have an emergency-only traffic light) and over the Assabet River. Route 2A formerly broke ...
Boston has the oldest subway system in North America, with the first underground streetcar traffic dating back to 1897. Today the whole subway network is owned and operated by the Massachusetts Bay Transportation Authority (MBTA). In the early 1960s, the then-newly-formed MBTA hired Cambridge Seven Associates to help develop a new brand ...
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A traffic camera is a video camera which observes vehicular traffic on a road. Typically, traffic cameras are put along major roads such as highways, freeways, expressways and arterial roads, and are connected by optical fibers buried alongside or under the road, with electricity provided either by mains power in urban areas, by solar panels or other alternative power sources which provide ...
USA TODAY. Ex-Ohio 911 dispatcher who admitted to starting forest fires gets 18 months in prison. Weather. Fox Weather. Parade of winter storms to blast across US with snow expected for 200 ...