What’s the Purpose of That Little White Device on the Traffic Light Pole?

If privacy is a concern, it’s reasonable to check the local authority’s information about traffic cameras, data collection, and retention.

Can These Devices Change How Long a Traffic Light Stays Green?
Yes, some can!

This is one of the most useful applications of vehicle detection technology.

At an intersection with traffic-responsive signals, sensors can provide information that helps the controller adjust signal timing.

For example, if a busy road has a long line of waiting vehicles, the controller may be able to provide additional green time within its programmed limits.

If a side street has no waiting vehicles, the system