Reversible short lane signal control method based on intersection vehicle in-turn release

A signal control, short-lane technology, applied in the control of traffic signals, roads, roads, etc., can solve problems such as inability to meet traffic needs, and achieve the effect of reducing delays and parking times, increasing the number of lanes on the entrance road, and increasing traffic capacity.

Inactive Publication Date: 2015-04-08

JIANGSU UNIV

6 Cites 26 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the traffic demand cannot be satisfied due to the limited space at the intersection, and propose a reversible short lane signal control method based on the vehicle wheel ...

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Abstract

The invention discloses a reversible short lane signal control method based on intersection vehicle in-turn release. According to the method, four inlets in the east, south, west and north at an intersection are respectively provided with one segment of reversible short lane by utilizing opposite lanes, four outlet lanes are respectively provided one set of reversible short lane indicating lamps, right sides of stop lines of the four inlets are respectively provided with one set of left turning pre-signal lamps, main signal lamps at the intersection employ a clockwise or anticlockwise in-turn release four-phase mode for all vehicles at each inlet lane, phase difference between the main signal lamps and the left turning pre-signal lamps is set, and the reversible short lane indicating lamps and the left turning pre-signal lamps realize simultaneous conversion; phase difference between main signals and left turning pre-signals is coordinated, public period duration and green light distribution time are calculated, conflicts between a left turning traffic flow and an outlet lane traffic flow are controlled in the time aspect, left turning traffic flow jam caused by improper time distribution is avoided, inlet and outlet land resources are fully utilized, the lane number of inlet lanes is enhanced, and passing capability of the intersection is improved.

Application Domain

Controlling traffic signalsRoadways

Technology Topic

Automotive engineeringReal-time computing +3

Image

Examples

Experimental program(1)

Example Embodiment

[0043] Example

[0044] see figure 1 , 2 , 3, 4. Set up reversible short lanes. exist figure 1 In the intersection shown, one is set in each direction of S and N l i = 50m long reversible short lanes, one in each direction of E and W l i = 40m long reversible short driveway.

[0045] Set reversible short lane indicator lights and left-turn motor vehicle pre-signal lights. exist figure 1 In the shown intersection, the left-turn pre-signal light 8 is set on the right side of the stop line in the S direction, the left-turn pre-signal light 5 is set on the right side of the stop line in the E direction, the left-turn pre-signal light 2 is set on the right side of the stop line in the N direction, and the left-turn pre-signal light 2 is set on the right side of the stop line in the W direction. Left-turn pre-signal light 11 is set on the right side of the stop line.

[0046] Set the reversible short lane indicator 9 at the exit in the S direction, set the reversible short lane indicator 6 at the exit in the E direction, set the reversible short lane indicator 3 at the exit in the N direction, and set the reversible short lane indicator at the exit in the W direction lights12.

[0047] Set the phase difference between the main signal and the pre-signal as follows:

[0048] 1. Main signal phase

[0049] The main signal uses image 3 The traffic control mode of the vehicles shown in the wheel, the main signal period of the intersection C=120s, the green light time of each phase g ei =27s, yellow light time A=3s. Signal period C of the left turn pre-signal 左 =120s.

[0050] 2. The phase difference between the main signal and the left turn pre-signal

[0051] Reversible short lane lengths in all directions l i , and the distance between each stop line and the end of the reversible short lane L I , the speed of the left-turning vehicle entering the intersection v i , the speed of straight vehicles passing through the intersection V I As shown in the table below:

[0052] According to the various data in the following table, and the above formula (1) to formula (8), it can be calculated:

[0053] , the time for the rear vehicle of the left-turning fleet to pass through the reversible short lane before the clearance of vehicles at the south entrance ends;

[0054] , rounded to get T S =8s, when the west entrance vehicle is released, the time for the rear vehicle of the north entrance through vehicle to completely pass through the reversible short lane of the south exit;

[0055] , the time for the rear vehicle of the left-turning fleet to pass through the reversible short lane before the end of the vehicle clearance at the east entrance;

[0056] , rounded to get T E =8s, when the vehicles at the south entrance are released, the time for the rear vehicle of the through vehicle at the west entrance to pass through the reversible short lane at the east exit completely;

[0057] , rounded to get t n =6s, the time for the rear vehicle of the left-turning fleet to pass through the reversible short lane before the clearance of vehicles at the north entrance ends;

[0058] , rounded to get T N =9s, the time for the rear vehicle of the straight vehicle at the south entrance to completely pass through the reversible short lane at the north exit when the vehicle at the east entrance is released;

[0059] , rounded to get t w =6s, the time for the rear vehicle of the left-turning fleet to pass through the reversible short lane before the clearance of vehicles at the west entrance ends;

[0060] , rounded to get T W =9s, when the north entrance is cleared, the time for the tail vehicle of the east entrance to pass through the reversible short lane of the west exit completely.

[0061] Table 1 Summary table of intersection reference data

[0062] .

[0063] according to figure 1 As shown, taking the left-turn pre-signal light 8 and the reversible short lane indicator light 9 of the south entrance as an example: the order of release of vehicles at each entrance at the intersection is: south entrance, east entrance, north entrance, and west entrance. When vehicles at the west entrance of the intersection start to pass T S =8s (the rear vehicle of the straight-going vehicle at the north entrance completely passes the reversible short lane), the left-turn pre-signal light 8 at the south entrance is displayed as a green light, prompting the left-turn vehicle at the south entrance to enter the reversible short lane, and the reversible short lane indicator light is red " × " signal; when the south entrance vehicle at the intersection starts to pass, the left-turning vehicle uses the reversible short lane to drive; before the south entrance vehicle release ends =7s (the rear car of the left-turning team can pass through the reversible short lane completely before the end of the pass), the left-turn pre-signal light 8 becomes a red light, and the reversible short lane indicator light 9 is displayed as a green arrow "↓" signal.

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PUM

Property	Measurement	Unit
Length	30.0 ~ 60.0	m
tensile		MPa
Particle size		Pa
strength	10

Description & Claims & Application Information

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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

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