Wednesday, October 28, 2009

Intelligent Transportation Systems

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Did you know that cars pollute the most while sitting idle at intersections waiting for the light to change?

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Intelligent Transportation Systems (ITS) refers to all of the efforts made to the transportation infrastructure. This includes systems that monitor traffic to control the street signals, internal and car-to-car communications, car navigation systems, collision avoidance, crash detection, electronic speed limit signs, speed and red light cameras and other innovative systems to ensure safe driving and keep pollution to a minimum.

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Traffic congestion and the rise of new and better technology started the push for real-time control and more efficient traffic solutions.

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Traffic control cameras were designed and built to eliminate the much more costly and unreliable induction loops. Induction loops are installed into the road itself and they detect the vehicle’s magnetic field as the vehicle passes over the loop. These systems are quite costly to install since they either have to be put in before asphalt is poured for a street or cut into existing asphalt. These systems are also vulnerable to extreme temperatures – both hot and cold – which can make them fail. Failure means the lights will not change when a vehicle pulls up to it.

Have you ever pulled up to a red light at two in the morning and no matter how long you sit there the light just will not change? That’s a loop failing to sense your car.

In order to overcome these types of problems, video cameras were created with specialized housings, lenses and software to measure traffic flow, automatic incident detection, license plate recognition, and other traffic related issues.

The video systems are totally non-intrusive as they do not require installing any equipment inside the roadbed; instead the cameras are generally mounted at the top of light-poles with the cables being run through existing paths in those poles.

Video from the camera is fed into processors that analyze certain characteristics of the video. They can be set up to detect lane-by-lane vehicle speeds, vehicle counts, lane occupancy, stopped vehicles, vehicles facing the wrong direction and so on. A single video detection processor can detect up to eight simultaneous feeds.

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For over 20 years WTI has designed and manufactured innovative ITS systems – from the camera systems to wireless communication devices. For more information on our complete line of solutions check out our web site at www.gotowti.com.

~The WTI Team



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WTI (Wireless Technology, Inc.)

Video Surveillance Products Dedicated to the Broadcast, Global Security and Transportation Markets!

www.gotowti.com ● www.wirelesstech.com

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