Auxiliary signal control system for urban level-junction
A plane intersection and auxiliary signal technology, applied in the direction of traffic signal control, variable traffic indication arrangement, etc., can solve the problem of traffic jams not being solved well, and achieve the effect of easy hardware implementation, wide application range and simple principle
Inactive Publication Date: 2005-11-23
BEIJING JIAOTONG UNIV
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Although these measures have achieved certain results, the problem of traffic jams has not been well resolved.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0021] Embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0022] Set signal point 1 at a position greater than 20 meters in front of each intersection of the road, set control line 4 at a position greater than 50 meters in front of the signal point, and the area between control line 4 and signal point 1 is the control area. A control device is installed at the signal point 1, which is composed of a rangefinder 5, a single-chip microcomputer 6 and an auxiliary signal lamp 7. During the control process, the range finder 5 measures the distance between the vehicle 2 passing through the signal point 1 and the vehicle 3 behind it, and according to the measured value, the auxiliary signal lamp 7 sends an auxiliary control signal to the vehicle 3 behind.
[0023] The control line 4 is set at the farthest position where the driver can see the auxiliary signal. After the vehicle crosses the control line 4 and enters the cont...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
An auxiliary signal control system for urban level intersections, the system is to set a signal point (1) at a position greater than 20 meters before each intersection of the road, and set a control line (1) at a position greater than 50 meters before the signal point 4), the area between the control line (4) and the signal point (1) is the control area, and the control device is installed at the signal point position, and the device consists of a distance meter (5), a single-chip microcomputer (6) and an auxiliary signal lamp (7 )composition. According to the distance between the vehicle (2) passing the signal point and the vehicle (3) behind it as measured by the rangefinder (5), the auxiliary signal lamp sends a control auxiliary signal to the vehicle (3). Under the control of the auxiliary signal, the driving state of the vehicles in the control area is changed from disorder to order, so as to ensure the driving safety before the intersection and improve the traffic capacity of the vehicles at the intersection. Especially when the vehicle density is high, before the left and right curves at the intersection, this control technology is more effective.
Description
technical field [0001] The invention relates to a control technology of an auxiliary signal at a city plane intersection. Background technique [0002] At present, in urban traffic, according to whether there is traffic control, intersections can be divided into two types: unsignalized intersections and signalized intersections. An unsignalized intersection has no definite instructions or controls for the driver, and the driver must judge for himself when it is safe to enter the intersection. The operating characteristics and capacity of traffic flow at signalized intersections directly depend on the signal timing. But no matter which way is used, the state of vehicles running before the intersection is disordered, especially when the vehicle density is high, this disordered state is more obvious. The highly disordered driving state makes vehicles traveling in all directions interfere with each other and cause conflicts, thereby reducing the speed of vehicles and reducing ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/07G08G1/09
Inventor 高自友李克平
Owner BEIJING JIAOTONG UNIV