[Trax] was asked by a friend to build a device that could detect the presence of a car in front of his garage gate for it to open automatically. After searching the web for such a project and trying ...

In a bout of frustration I recently realized that the roads have all updated — most people have no idea how — and this sometimes hurts the flow of traffic. This realization happened when an ...

The detector comes in both single and dual-loop versions with separate outputs for each loop. Single-loop versions have two outputs, one pulse and the other presence. Outputs in the dual-loop system ...

Inductive sensors achieve fast response times. Changes in position or speed cause immediate alterations in the induced eddy currents, which directly affect the inductance of the sensor coil. This ...

A video-detection traffic sensor system uses video cameras mounted on the mast arm of a traffic signal to "see" a vehicle approaching the intersection. When a vehicle enters the camera's "detection ...

Ordinarily, traffic lights change color in response to predetermined rules and induction loop sensors embedded in the road. According to new research, however, making those lights artificially ...

Twenty-one year old Ana Gamble sits on her black scooter at the intersection of Hull Road and Southwest Thirty Fourth Street waiting for the light to turn green. As she waits, the other traffic ...