Intersections

Traffic signals, also known as traffic lights, are electronic traffic control devices that assign right-of-way to vehicles entering an intersection. Traffic signals use indications (lights) to indicate the right-of-way to drivers and pedestrians.

 

A roundabout is a type of circular intersection designed to keep traffic moving safely and efficiently. A roundabout is not the same as a neighborhood traffic circle or large rotary. Some features that are unique to roundabouts include a large central island, counterclockwise traffic flow, splitter islands on the approaches to the roundabout, and traffic entering a roundabout must yield to traffic in the roundabout circulatory lane.

 

 

A J-Turn, or reduced conflict intersection, is a u-turn type intersection installed on divided highways (expressways). A J-Turn requires vehicles on the side street intending to cross a divided highway or make a left turn onto the divided highway to use the u-turns installed in the divided highway median. Vehicles on the divided highway can still make a left turn or right turn at the intersection as normal.

 

A continuous green-T intersection is an intersection that is controlled by a traffic signal but allows one direction of traffic on the major road to have continuous traffic flow. The continuous green-T provides similar traffic operational benefits to a grade-separated interchange, but at a significantly reduced cost.