Variable speed limit signs can be used on the highway, motorway bridge or tunnel, TIS major objective is to control the speed limit sign:
• Control the traffic speed,to optimize traffic flow and reduce congestion.
• Slow down the speed on main traffic lines and entrance ramps, improve the safety and prevent the velocity differences between the traffic flow mutant.
• Could display more different content.
• Using frosted coating on the surface, with excellent legibility and high contrast.
• Using high light and low power LED.
• Using front door maintenance, easy installation, commissioning and maintenance.
• Using high-precision environment light sensor to achieve automatic adjustment the brightness of the screen.Protocol : TCP/IP , NTCIP , UTMC etc.