How to set a 3-way junction signal light?

3 way junction traffic light

3-way junction traffic light

    Setting up a 3-way junction traffic light  involves considering traffic flow, safety, and efficiency. Here are the steps to set up a T-intersection signal light:

(1)  Signal Phasing and Timing

• Traffic Study: Conduct a traffic study to understand the traffic volume, peak hours, pedestrian movement, and accident history.
• Design Criteria: Follow design guidelines from relevant authorities.
• Intersection Layout: Ensure the layout accommodates the signal poles, pedestrian crossings, and vehicle lanes.
• Phasing:  Determine the phases needed. Typically, a T-intersection might have: Main street through movements (both directions)，Side street left turn and through movement (if applicable)，Pedestrian phase.

(2)  Normial setting.

West direction, and left and right arrows in the south-to-north direction. All right arrows can be set to evergreen, and of course, red lights can be set in special circumstances. Each pole can be  added with a multi-          phase countdown to prompt travel.

(3) Hardware Installation

• Signal Poles: Install signal poles at appropriate locations to ensure visibility for all approaching vehicles.
• Signal Heads: Mount signal heads on the poles. Ensure they are aligned correctly for visibility.
• Pedestrian Signals: Install pedestrian signals and push buttons at crosswalks.