How are they installed and used?
In today's information age and with the rapid development of intelligent transportation systems, information dissemination has become an important service in the transportation sector serving the public. Various information display devices have become the primary means of disseminating information to the public on highways. Common LED traffic guidance display methods include LED variable message signs, route indicator signs, and variable signs and symbols.
1. Gantry-type Variable Message Signs
Gantry-type variable message signs are the main method of information dissemination on highways. Due to their large size, they generally use overhead gantries across the road as supports for the variable electronic display screens. They are remotely controlled by a main monitoring computer through a communication network, transmitting and displaying various graphic and text information. They provide drivers with timely information about different road conditions and various traffic information on different road sections, and also disseminate traffic regulations and knowledge, aiming to reduce recurring congestion on highways, minimize the impact of non-recurring accidents, and improve driving safety; thereby effectively managing traffic and improving the efficiency of highway use.
2. Variable Speed Limit Display Screens
Variable speed limit LED display screens are mostly installed on key sections of roads with complex road conditions or on large bridges. They are mostly circular or single-arm suspended single screens. They are remotely controlled by a monitoring center computer through a communication network, transmitting and displaying the speed limit for that section or short traffic information, serving to remind vehicles to drive at the speed limit and ensure driving safety.
3. Mobile Traffic Information Screens
During highway construction and maintenance, highway authorities or construction personnel temporarily close or change lanes. Communicating this traffic information to road users is crucial. Fixed variable message signs are limited by the uncertainty of construction locations or their distance, making them less effective. Mobile LED traffic information screens (vehicle-mounted screens) are compact, flexible, and lightweight, suitable for installation on towed vehicles, and can be placed directly at the target location to display information, compensating for the shortcomings of fixed variable message signs.
4. Guidance and Warning Screens
To ensure the safety of highway construction workers, vehicles, and other vehicles driving normally, highway work vehicles must be equipped with conspicuous high-brightness signs to warn and guide other vehicles, preventing accidents. Directional warning screens are essential equipment for construction vehicles on highways.
5. Service Display Screens
Service LED display screens refer to LED devices installed in toll station areas and service areas to provide various services and information. Through various LED displays installed in toll plazas, service area parking lots, and indoors, real-time traffic conditions and service assistance information are provided to passing drivers and passengers, facilitating their travel and improving the management level and external image of the road section.
Outdoor LED displays for traffic guidance information have the following characteristics in terms of specific functions, based on the requirements of road traffic management and the actual situation of traffic guidance information display: high brightness, reasonable viewing angle; display colors mainly red, green, and yellow; automatic brightness adjustment; all-weather operation in complex environmental conditions; remote control and intelligent detection; high safety, real-time performance, accuracy, and reliability.
