Driverless cars are making full progress. Ford's Fusion driverless car for research purposes is now ready to travel in a completely dark environment. This article refers to the address: http:// With 3D maps and lidars, Ford's driverless cars recognize the environment in complete darkness. The 3D map provides more information about the condition of the road, including road signs and terrain. Lidar can actively transmit signals and measure the distance between itself and the obstacles, so that the driverless car knows that it is at a specific location on the map. Using infrared-enhanced glasses, Ford engineers observed the operation of the car. Currently, Ford's test is limited to the Arizona test site. Testing without turning on the lights on public roads is likely to be illegal. When the car's headlights suddenly turn off, the night vision function of the driverless car will bring important help. For ordinary drivers, driving in the dark can be stressful. However, in densely populated areas, such technology will help solve the problem of light pollution. Road Traffic Signs are graphical symbols that display traffic regulations and road information. They can make traffic regulations visually, concisely and concisely expressed. At the same time, they also express the content that is difficult to describe in words. They are used to manage traffic and indicate the direction of driving to ensure the smooth flow of roads and the safety of driving. Applicable to highways, urban roads and all special highways, with the nature of the law, vehicles, pedestrians must comply with. Road Traffic Signs Road Traffic Signs,Traffic Light Sign,Road Safety Signs,Highway Road Traffic Signs Yangzhou Heli Photoelectric Co., Ltd. , https://www.heli-eee.com