Arrow Traffic Lights for Turn Lanes: Configuration Checklist
An arrow signal specifies a particular vehicle movement. The approved intersection plan—not a catalogue photo—must define its direction, colour, position and operating sequence. Use this checklist to keep the quoted head aligned with that plan.
Identify each turn movement
List left-turn and right-turn indications as separate items. For every aspect, record its colour, arrow direction and top-to-bottom position. Request a front-view drawing; an image shown from an angle or mirrored in a catalogue can hide a direction error.
Compare housing and mounting
For a replacement, record the existing face diameter, housing dimensions, bracket-hole spacing, cable entry and visor orientation. If an arrow module will be fitted into an existing head, confirm mechanical and electrical compatibility for that exact housing revision. Do not assume modules from different product generations interchange.
Confirm the controller interface
Include the project voltage, output assignment and approved phase plan in the request. The controller integrator should review the supplier's proposed connection diagram. Wire colour alone is not a reliable description of function. Any protected or permissive operation must follow the responsible traffic engineer's design and local requirements.
Approve the visible result
Check the lit arrow from the planned approach and review the unlit appearance for potentially confusing reflections. Keep the approved front-view drawing, sample photo and revision together. If the symbol shape, lens or wiring changes before production, approve the revised sample first.
What to include in the RFQ
- Intersection and head ID, quantity, and turn direction
- Aspect order, colour and arrow for each position
- Face diameter, housing and bracket dimensions
- Input rating, controller output and connection drawing
- Applicable local approval requirements and delivery destination
Browse three-aspect signal heads and our traffic signal RFQ checklist. For a matching quotation, send the approved drawing and head schedule.