Today, traffic lights play an important role at every intersection in a city, and when properly designed and properly installed, traffic lights have many advantages over other control methods. So what are the control advantages of traffic lights?
(1) Drivers are not required to make independent judgments
Traffic lights can clearly inform drivers of the assignment of road rights. Drivers do not need to judge the allocation of road rights themselves, they only need to stop at red lights and pass at green lights. Other control methods, such as parking control and looping interspersed, require the driver to make complex judgments and decisions and to choose the appropriate traffic flow gap. The advantage of reducing the driver discrimination requirement is that it reduces the likelihood that the driver will make an incorrect discrimination.
(2) It can effectively control and deal with the infiltration of large flow.
Traffic light control can be used to control high-traffic situations, such as multi-way intersections. Conversely, if parking control is applied only to detour traffic, the increase in traffic at the intersection will lead to queuing of vehicles, thereby increasing traffic violations and traffic safety issues.
(3) Reasonable distribution of road rights
Using traffic lights to control intersections is fairer, more reasonable and more efficient than using other control methods. When using parking control or looping control, it is necessary to find a suitable gap to allow the vehicle to enter the main traffic flow, which results in a long waiting time. The use of signal lights can ensure that drivers have a special time to pass through the entrance.
(4) Controllable allocation of road rights
The waiting time of the imported vehicle can be controlled at the signal light controlled insertion port, but not the parking control or the ring insertion. The waiting time for imported vehicles can only be changed by changing the timing of the signal lights. Modern traffic light controllers can adjust wait times for different days and different time periods.
(5) Effectively control the conflicting traffic flow
It can achieve orderly time allocation control for different directions and types of traffic flow. It can effectively transform the traffic flow from a disordered state to an ordered state, thereby reducing traffic conflicts, enhancing traffic safety, and improving road crossing ability.
(6) Reduce right-angle conflicts and incidents
Overall, traffic signal control can reduce right-angle collision incidents at intersections. If left-turning vehicles allocate their own time, accidents involving left-turning vehicles will be reduced accordingly.
(7) It is convenient for pedestrians to pass
If the traffic signal planning is reasonable and pedestrian signal lights are installed, the safety of pedestrians passing through crowded roads is higher than that of unsignaled intersections.
(8) Out of sight distance constraints
Signal control is the only safe way to assign right-of-way when there are unchangeable line-of-sight constraints, such as buildings in the corner of a bay that are too close to each other to block the line of sight.
Post time: May-27-2022
