What is the function of the spotlights on the highway gantry?
3 Answers
Spotlights on highway gantries serve to capture speeding, illegal use of emergency lanes, monitor accident-prone areas, detect various violations near ramps, and conduct traffic flow monitoring. Below are specific details about highway gantries: 1. Toll Calculation: When a vehicle passes through, the toll system on the gantry calculates the fee based on the pre-set distance between gantries. For example, if the distance between the first and second gantry is 20 kilometers, the system will automatically charge the driver for 20 kilometers of highway toll when passing the second gantry. 2. Violation Detection: These gantry devices are managed by traffic police departments. Currently, highway gantries are equipped with speed detection and traffic violation capture functions.
To be honest, as someone who delivers goods on highways every day, these overhead gantry lights are incredibly useful. Driving at night can easily make you drowsy, but these lights illuminate the road clearly, especially on rainy days when the reflection on the wet surface reminds me to slow down. Moreover, at dangerous sections like curves or long downhill slopes, these bright lights warn me from afar to stay alert. I’ve heard they also provide fill light for cameras, making speeding violations crystal clear now. Though they can be a bit glaring during night drives, slowing down helps you adjust—it’s much safer than driving in pitch darkness.
As someone who patrols highways year-round, let me tell you, the lights on gantries aren't just for illumination. Their core function is to assist surveillance equipment—capturing traffic violations at night relies entirely on their fill light. How can penalties be issued if license plates aren't clearly photographed? Additionally, they support variable message signs; when the electronic display's brightness is insufficient, the background lighting ensures drivers can read road condition alerts. This is especially critical at tunnel exits, mitigating visual blind spots caused by the 'white hole' effect. Of course, basic lighting is fundamental, but the angle design is meticulous—it must illuminate lanes without shining directly into drivers' eyes and causing distraction. Every light's position is carefully calibrated.
