Gantry Overhead Highway Traffic Signal Pole

Product features:

The heavy-duty gantry frame structure is the key feature of this signal pole, with a 12m span that covers up to 4 highway lanes, eliminating the need for multiple side-mounted signal poles. Made from Q345 high-strength carbon steel, it can support up to 800kg of load, including multiple traffic signal heads and large LED variable message signs. The hot-dip galvanization plus epoxy powder coating provides superior corrosion resistance, protecting against road salt, moisture, and UV rays, which is essential for highway environments where de-icing salts are widely used. The 180km/h wind resistance rating ensures stability during severe storms and crosswinds common on open highways. The dual column foundation mounting system distributes weight evenly, preventing soil settlement and structural damage. The gantry frame is pre-welded with adjustable signal brackets, allowing for precise positioning of signals to ensure optimal visibility for high-speed motorists. Additionally, the pole features built-in cable trays for organizing signal and VMS wiring, reducing the risk of cable damage from wind and debris.

Product specifications:

This gantry overhead signal pole has a total span of 12m, with two supporting columns each measuring 8m in height, 300mm in diameter, and 10mm in wall thickness. The gantry beam measures 350mm in height, 200mm in width, and 12mm in wall thickness. Constructed from heavy-duty Q345 carbon steel, it undergoes hot-dip galvanization followed by a 90μm thick epoxy powder coating. The wind resistance rating is 180km/h, meeting AASHTO LRFD bridge design standards for highway structures. The clearance height under the gantry beam is 4.5m, complying with highway vehicle height regulations. Each supporting column requires a 2.5m deep pre-cast concrete foundation with 16 M36 anchor bolts. The gantry beam can accommodate up to 6 traffic signal heads and 1 large LED VMS (up to 2m x 4m). All welds are inspected via ultrasonic testing to ensure structural integrity, and the surface finish has a glossiness level of 50±5 units to reduce glare for motorists.

Product application:

The Gantry Overhead Highway Traffic Signal Pole is exclusively designed for highways, expressways, toll plazas, and urban expressway interchanges where multi-lane traffic management is critical. It is widely used in long-distance highway sections to guide traffic through interchanges, toll booths, and construction zones. In urban expressways, it helps manage traffic flow between city centers and suburban areas, reducing congestion during peak hours. The integrated VMS capability allows authorities to display real-time traffic updates, weather alerts, and construction notices to motorists, improving road safety and travel efficiency. This gantry pole is also suitable for border crossings and port access roads, where it can guide large commercial vehicles through inspection points. In areas with strong crosswinds, such as mountain passes and coastal highways, its 180km/h wind resistance rating ensures stable performance even in extreme weather conditions. Highway departments select this pole for its durability, high load capacity, and ability to provide clear signal guidance for high-speed multi-lane traffic.