Temporary Traffic Light System Planning Checklist
A temporary traffic light system should be planned around the traffic management arrangement, not only around the equipment list. Before procurement, define…
GAOQIAO Insights
Buying Guides
Practical guides to choose traffic lights, controllers and solar systems for distributors, contractors and engineering buyers.
Traffic Signal Countdown Timer Selection Guide
A traffic signal countdown timer shows the remaining time in a signal interval. It can help road users understand when a permitted…
LED Traffic Light Replacement and Retrofit Checklist
Replacement and retrofit projects require more information than a new installation. The existing signal head, bracket, voltage, controller, and cable arrangement should…
Traffic Light Pole and Mounting RFQ Guide
Traffic signal poles, arms, and brackets should be quoted from a drawing whenever possible. The visible signal head is only one part…
Ball, Arrow, and Pedestrian Traffic Signal Configurations: How to Specify Them
Traffic signal configuration should reflect the movement being controlled. Ball signals, directional arrows, and pedestrian signals may look related, but they require…
Mobile Traffic Lights for Roadworks: A Buying Guide for Temporary Projects
Mobile traffic lights are purchased for temporary traffic control, not as a reduced version of a permanent intersection system. The site layout,…
Wired vs Wireless vs Solar Traffic Signal Systems: A Procurement Guide
Wired, wireless, and solar traffic signal systems solve different site constraints. The selection should begin with power availability, control requirements, installation conditions,…
Traffic Signal Head Specification Checklist for Project Buyers
A traffic signal head should be specified as part of a system. Before asking for a quotation, identify the signal function, aspect…
Traffic Signal Controller RFQ Checklist for Road Projects
A controller quotation is only as accurate as the intersection information behind it. “Eight-phase traffic controller” may describe the required movement plan,…
LED Traffic Signal Buying Guide: How to Specify a Road Project
Buying a traffic signal is not the same as buying a lamp. The signal head, controller, pole, cable and intersection plan must…