What are the control methods of signal lights


It can be divided into timing control, induction control, and adaptive control.

Timing Control

Intersection traffic signal control machines are operated according to the pre-set timing scheme, also known as fixed-cycle control. A day only one timing scheme is called single-segment timing control; a day according to the traffic volume of different periods using several timing schemes called multi-segment timing control.

The most basic control method is the timing control of a single intersection. Line control, surface control are also available in the form of timing control, also called static line control system, static surface control system.

Induction control

Induction control is set on the intersection inlet road vehicle detectors, traffic signal timing program by computer or intelligent signal control machine, can be changed at any time with the detection of the traffic flow information and a control method. The basic way of induction control is a single intersection induction control, referred to as single-point control induction control. Single-point induction control can be divided into half induction control and full induction control with the different ways of detector settings.

Adaptive control

The traffic system as an uncertain system, can continuously measure its state, such as traffic flow, the number of stops, delays, queue length, etc., and gradually understand and master the object, compare them with the desired dynamic characteristics, and use the difference to change the adjustable parameters of the system or to produce a control, so as to ensure that no matter how the environment changes, the control effect can be optimal or sub-optimal control of a control method. The

Pedestrians

shall walk in the sidewalk, and if there is no sidewalk, shall walk on the side.

Crossing the carriageway, must use the pedestrian crossing.

No crossing or leaning on crossing guards.

No pickpocketing, chasing cars, forcibly stopping or throwing objects to hit the car on the road.

Line through the road, each horizontal line is not allowed to exceed 2 people. Children's queue must be on the sidewalk.

Riders

Riders of public electricity and buses must wait for their turn on the platform or at the designated place, and get off before getting on after the bus stops.

Not allowed to greet the taxi on the carriageway.

Not allowed to carry flammable, explosive and other dangerous goods by public buses, power plants, rental cars and coaches.

When the motor vehicle is in motion, no part of the body is allowed to stick out of the vehicle, and no jumping out of the vehicle.

When riding a freight motor vehicle, not allowed to stand, not allowed to sit on the carriage block.

Bicycle tricycle

Before turning, slow down, look backward, reach out to indicate, and do not allow sudden and violent turning.

Through the steep slope, crossing more than four lanes of motor vehicles or when the brake fails, must get off and push.

No hands off the handle, climbing to support other vehicles or hands holding objects.

Not allowed to pull the vehicle or be pulled by other vehicles.

Not allowed to hold the body parallel, chasing each other or zigzag racing.

No parallel riding on tricycles.

People under 16 years of age are not allowed to drive animal-drawn vehicles on the road.

Children under 12 years of age are not allowed to ride bicycles, tricycles and push and pull rickshaws on the road.

Other developments


Signal light rules

Article I to strengthen urban traffic management, facilitate transportation, maintain traffic safety to meet the needs of national economic construction, the development of the rules.


Classification of signal lights

Motor vehicle signals and non-motor vehicle signals Motor vehicle signal is a set of three lights consisting of red, yellow and green circular units without patterns to guide the passage of motor vehicles.


Definition of Traffic Signal

In the intersection, four sides are hanging red, yellow, green, three color traffic signal, it is silent "traffic police". Red and green lights are the international unified traffic signals. Red light is the stop signal, green light is the signal to pass. Intersection, several directions to the car are gathered here, some want to go straight, some want to turn,


Main characteristics of circuit breakers

The characteristics of the circuit breaker are mainly: rated voltage Ue; rated current In; overload protection (Ir or Irth) and short-circuit protection (Im) decoupling current adjustment range; rated short-circuit breaking current (industrial circuit breaker Icu; household circuit breaker Icn), etc.