Much like George Lucas and the original Star Wars films, many of us may find that our passion projects are never quite finished, especially when new technology comes around or we just want to make ...

Many red lights fail to detect smaller vehicles like bikes and scooters due to sensor limitations. Inductive loops, common in traffic signals, rely on sufficient metal mass to register a vehicle.

You might think traffic light systems are fairly basic. After all, electric traffic signals first appeared all the way back in 1914. However, they have advanced significantly since their inception, ...

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 ...

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 ...

A traffic signal sensor in Portland. Welcome to our newest column: Bike Science with Shawn Small One of the more frustrating aspects of cycling in an urban environment is not being able to trigger a ...

You pull up to a traffic light and the signal suddenly turns green. Lucky stars? More like smart technology. Inductive loop sensors are among the most common vehicle detection systems used to 'sense' ...

If you're a regular bicycle commuter, then you've no doubt experienced the following scenario: you're the only vehicle going in your direction at a controlled intersection, and the light is red, but ...

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 ...