The pros and cons of signal lamp application

There are a lot of people reflect, why didn't the intersection traffic lights? Why can't the traffic lights to cancel? Many problems and so on. Exactly what kind of intersection need light? Advantage 1. Effective operation of traffic flow of intersection

 there are a lot of people reflect, why didn't the intersection traffic lights? Why can't the traffic lights to cancel? Many problems and so on. Exactly what kind of intersection need light? Advantage 1. For effective control of traffic flow of intersection and management; 2. Cut the traffic conflict, enhance the traffic safety, progress CAL force; 3. Way distribution more just, reasonable, efficient; 4. Traffic signal control can cut intersection on the incident involving the right Angle; 5. Intersection signal control, the safety of pedestrians through the crowded roads is higher than the intersection of no signal. 1. When crossing the traffic volume is very small, traffic signal control compared with other control methods, will add vehicle delay; 2. Don't have standard signal timing plan, will add traffic delay time, and a potential traffic safety accident; 3. Traffic signal if placed fault, interferes with marching along the main line of traffic flow; 4. Using traffic signal control, intersection line of crash is likely to add; 5. If the system fault happened in busy time will form a large safety and congestion. The above content from huasheng new energy, reproduced please indicate.