CN111063193A - Traffic indicating system and method for improving crossing traffic efficiency - Google Patents
Traffic indicating system and method for improving crossing traffic efficiency Download PDFInfo
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- CN111063193A CN111063193A CN201911417372.3A CN201911417372A CN111063193A CN 111063193 A CN111063193 A CN 111063193A CN 201911417372 A CN201911417372 A CN 201911417372A CN 111063193 A CN111063193 A CN 111063193A
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- deviator
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
Abstract
The invention discloses a traffic indicating system for improving crossing traffic efficiency, which belongs to the technical field of traffic, and aims to provide a traffic indicating system capable of greatly improving crossing traffic efficiency. By arranging the variable lanes, the traffic pressure of the intersection is relieved, and the passing efficiency of the intersection is improved.
Description
Technical Field
The invention relates to the technical field of traffic, in particular to a traffic indicating system and a method for improving crossing traffic efficiency.
Background
In recent years, the number of motor vehicles presents a 'explosive' growth situation, and the newly built urban roads can not keep pace with the development of urban road traffic demand, so that traffic jam develops into 'urban disease'.
Urban road intersections are key nodes for traffic flow collection, and the conventional intersection planning design and operation management generally adopts a simplified processing method to apply certain fixed modes, so that the intersection design of many cities is simplified, the intersection design is extensive and simple, and the operation efficiency is low.
The urban road intersection space limitation limits the intersection to be difficult to widen in a canalization mode, so that how to reasonably utilize time and space optimization measures, make up the defect that the intersection space cannot be fully utilized in the releasing process of the existing control method, excavate the potential traffic capacity of the intersection as far as possible and become an important problem to be solved urgently for relieving urban traffic jam.
As shown in fig. 1, at present, there is an intersection formed by respectively meeting a first road 8, a second road 9 and a third road 10, where the traffic at the intersection of the second road 9 is organized into three-in two-out, where the three-in comprises two straight lanes and a left-turn lane 2, and since there are many vehicles turning into the second road 9 on the first road 8, the left-turn vehicles are jammed on the first road 8, which results in a decrease in traffic efficiency.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a traffic indicating system which can greatly improve the crossing traffic efficiency.
The above object of the present invention is achieved by the following technical solutions:
a traffic indicating system for improving the traffic efficiency at the intersection comprises at least one straight lane, at least one left-turn lane and at least one exit lane, wherein the exit lane adjacent to the left-turn lane is set as a variable lane,
still including the guidance system that changes the way, the guidance system that changes the way is including the guiding device that changes the way, the guidance device that changes the way includes first support, be equipped with changeable way indicating board on the first support, changeable way indicating board is located changeable lane top, changeable left turn signal of changeable way indicating board and forbid current.
By adopting the technical scheme, when the traffic flow on the left turn-over second road on the first road is larger, the signals on the variable road indication board are switched into left turn signals, a left turn outlet is widened, the traffic flow on the first road is reduced, the traffic pressure at the intersection is relieved, and the traffic efficiency at the intersection is improved.
The present invention in a preferred example may be further configured to: still be equipped with the lane on the first support and guide the tablet, the lane guides the tablet and is located through traffic lane and left turn lane top, the lane guides the tablet and is equipped with the straight sign corresponding to the position in through traffic lane, the lane guides the tablet and is equipped with the left turn sign corresponding to left turn lane top.
By adopting the technical scheme, the lane guide board marks other lanes respectively, so that the driver can be prevented from identifying the corresponding road to cause errors, traffic accidents are avoided, and the traffic efficiency is improved.
The present invention in a preferred example may be further configured to: the lane changing position of the variable lane is provided with a previous guiding device, the previous guiding device comprises a second support, a previous indicating plate is arranged on the second support and is positioned above the lane changing position of the variable lane, and the previous indicating plate can switch a passing signal and a no-passing signal.
By adopting the technical scheme, the previous sign gives a prompt to the position of the variable lane in advance, so that the traffic problem possibly caused by emergency lane change can be solved, and a driver can make corresponding operation in advance.
The present invention in a preferred example may be further configured to: the traffic indicating system also comprises a traffic signal indicating lamp arranged at the intersection.
Through adopting above-mentioned technical scheme, traffic signal pilot lamp and lane change guiding device and preceding guiding device cooperation for whole traffic reminder system is more perfect.
The present invention in a preferred example may be further configured to: the traffic indication system further comprises an image acquisition module and a traffic flow prediction module, wherein the image acquisition module comprises a third support arranged at the intersection, a camera is arranged on the third support, and the camera is used for acquiring static images of traffic flows on a left-turn lane, a second road and a third road.
By adopting the technical scheme, the image acquisition module acquires the traffic flow static images of all roads and lanes, and the vehicle prediction module predicts the traffic flow, so that the traffic indication system can perform lane change operation through the traffic flow.
The present invention in a preferred example may be further configured to: be equipped with the deviator between camera and the third support, the deviator is including setting up the deviator on the third support, the deviator is vertical, the camera sets up on the deviator top, the deviator bottom is equipped with the steering motor that drives deviator pivoted.
Through adopting above-mentioned technical scheme, turn to the motor drive camera and rotate, alright acquire the traffic flow of many roads like this through a camera, and the cost is lower.
The present invention in a preferred example may be further configured to: the turning device comprises a plurality of toothed rings arranged on the body of the turning rod, the toothed rings are arranged along the axis of the body of the turning rod, the turning device further comprises a lifting motor, a gear is arranged on an output shaft of the lifting motor and meshed with the toothed rings, a vertically arranged fixed key is arranged on an output shaft of the turning motor, a key groove is formed in the turning rod, and the fixed key is matched with the key groove.
Through adopting above-mentioned technical scheme, elevator motor and gear and ring gear cooperation to the drive camera goes up and down, and the region that the camera can be caught is bigger like this, and is also more accurate to the prediction of vehicle flow.
The present invention in a preferred example may be further configured to: the traffic flow prediction module comprises a prediction setting unit and a prediction unit,
the prediction setting unit is used for setting a virtual measuring line on the image of the target detection road section in the static image and acquiring the traffic flow passing through the target detection road section in each unit time according to the virtual measuring line;
and the evaluation unit is used for evaluating the traffic flow in the static image.
By adopting the technical scheme, the prediction setting unit determines the prediction area, and then the traffic flow is predicted by the evaluation unit.
The present invention in a preferred example may be further configured to: the traffic indication system further comprises a lane change judgment system, and the lane change judgment system switches the lane-changeable indication board into a left-turn signal and switches the previous indication board into a traffic signal when the traffic flow of the left-turn lane is larger than a set value according to the traffic flow evaluated by the evaluation unit.
By adopting the technical scheme, the lane change judging system controls the lane change indicator board and the previous indicator board based on the traffic flow evaluated by the evaluation unit, so that the cost caused by manual monitoring is avoided, the problem of timing opening is also avoided, the timing opening can lead to timely lane change under the condition that the lane change is not needed, and the problem of traffic jam is caused on the contrary.
The second aim of the invention is realized by the following technical scheme:
a traffic indication method for improving crossing traffic efficiency comprises the following specific steps:
s1: the direction changing device drives the camera to rotate to obtain a static image of the traffic flow, the prediction setting unit sets a virtual measuring line on an image of a target detection road section in the static image, and the traffic flow passing through the target detection road section in each unit time is obtained according to the virtual measuring line;
s2: the evaluation unit evaluates the traffic flow in the static image;
s3: the lane change judging system switches the lane-changeable indicating board into a left-turn signal and switches the previous indicating board into a pass signal according to the traffic flow estimated by the estimating unit when the traffic flow of the left-turn lane is larger than a set value;
s4: and the time of turning the left green light at the intersection is compressed by 5 seconds and is distributed to the straight-going vehicles.
By adopting the technical scheme, the lane change judging system controls the variable lane indicating board and the previous indicating board based on the traffic flow estimated by the estimating unit, 18 vehicles can pass through in one period of the variable left-turn lane arranged at the intersection, 10 vehicles can pass through in the flat peak, 5 seconds are compressed out from the time of the left-turn green light at the original intersection and are distributed to the straight-going vehicles, 16-27 vehicles can pass through in the single period of the peak, 8-12 vehicles can pass through in the flat peak, and the crossing traffic efficiency is improved by about 36.5%.
In summary, the invention includes at least one of the following beneficial technical effects:
1. by arranging the variable lanes, the traffic pressure of the intersection is relieved, and the passing efficiency of the intersection is improved;
2. the lane changing judgment system controls the variable lane indicator and the previous indicator based on the traffic flow evaluated by the evaluation unit, 18 vehicles can pass through the intersection in one period of the variable left-turn lane, 10 vehicles can pass through the flat peak, 5 seconds are compressed from the time of the left-turn green light of the original intersection and distributed to the straight-going vehicles, 16-27 vehicles can pass through the single-period straight-going vehicles at the peak, 8-12 vehicles can pass through the flat peak, and the crossing traffic efficiency is improved by about 36.5%.
Drawings
Fig. 1 is a schematic diagram of an intersection in the background art.
Fig. 2 is a schematic structural diagram of the intersection in embodiment 1.
Fig. 3 is a system block diagram of the traffic indication system in embodiment 1.
Fig. 4 is a schematic structural view of the lane guide apparatus in embodiment 1.
Fig. 5 is a schematic structural view of a previous guiding device in embodiment 1.
Fig. 6 is a schematic structural diagram of an image acquisition module in embodiment 1.
Fig. 7 is a schematic structural view of a steering device in embodiment 1.
Fig. 8 is a schematic view of the antenna fixing key and the key groove in embodiment 1.
In the figure, 1, a straight lane; 2. a left turn lane; 3. an exit lane; 4. a variable lane; 5. a lane change guidance system; 51. a lane change guide device; 511. a first bracket; 512. a variable lane indicator board; 513. a lane guide plate; 52. a previous guiding device; 521. a second bracket; 522. a previous sign; 7. an image acquisition module; 71. a third support; 72. a camera; 73. a direction changing device; 731. a direction-changing lever; 732. a steering motor; 733. a toothed ring; 734. a lifting motor; 735. a gear; 736. a fixed key; 737. a keyway; 8. a first road; 9. a second road; 10. and a third road.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1: referring to fig. 2, in order to provide the traffic indication system for improving the crossing traffic efficiency, the first road is provided with two straight lanes 1, a left-turn lane 2 and two exit lanes 3, wherein the exit lane 3 adjacent to the left-turn lane 2 is set as a variable lane 4.
Referring to fig. 3, the traffic indication system further includes a lane change guidance system 5, a traffic signal indicator, an image acquisition module 7, a traffic flow prediction module, and a lane change judgment system.
Referring to fig. 2 and 4, the lane change guide system 5 includes a lane change guide device 51 and a previous guide device 52, the lane change guide device 51 includes a first support 511, a lane change indicator board 512 is provided on the first support 511, the lane change indicator board 512 is located above the lane change 4, and the lane change indicator board 512 adopts an LED lamp board through which a left turn signal and a straight signal can be switched.
The first support 511 includes an L-shaped support composed of a vertical bar and a horizontal bar, and is similar to a support of a traffic signal lamp used in traffic.
The first support 511 is further provided with a lane guide plate 513, the lane guide plate 513 is located above the straight lane 1 and the left-turn lane 2, a straight mark is arranged at the position, corresponding to the straight lane 1, of the lane guide plate 513, and a left-turn mark is arranged above the lane guide plate 513 corresponding to the left-turn lane 2. The lane guide plate 513 marks other lanes respectively, so that the driver can be prevented from making mistakes in identifying the corresponding road, traffic accidents are avoided, and the traffic efficiency is improved.
Referring to fig. 2 and 5, the previous guide device 52 is provided at the lane change position of the variable lane 4, the previous guide device 52 includes a second bracket 521, a previous signboard 522 is provided on the second bracket 521, the previous signboard 522 is positioned above the lane change position of the variable lane 4, and the previous signboard 522 can switch the pass signal and the no pass signal.
The second support 521 includes an L-shaped support composed of a vertical bar and a horizontal bar, and is similar to a support of a traffic signal lamp used in traffic.
Referring to fig. 4 and 5, the traffic indication system further includes a traffic signal indicating lamp provided at the intersection, and the traffic signal indicating lamp cooperates with the lane change guide 51 and the previous guide 52, so that the whole traffic guidance system is more complete.
Referring to fig. 2 and 6, the image capturing module 7 includes a third bracket 71 disposed at the intersection, and a camera 72 is disposed on the third bracket 71, and the camera 72 is used for capturing a static image of the traffic flow on the left-turn lane 2, the second road 9, and the third road 10.
Referring to fig. 6 and 7, a direction changing device 73 is arranged between the camera 72 and the third support 71, the direction changing device 73 includes a direction changing rod 731 arranged on the third support 71, the direction changing rod 731 is vertical, the camera 72 is arranged at the top end of the direction changing rod 731, and a steering motor 732 for driving the direction changing rod 731 to rotate is arranged at the bottom end of the direction changing rod 731.
Referring to fig. 7 and 8, the direction changing device 73 includes a plurality of toothed rings 733 arranged on the shaft of the direction changing rod 731, the toothed rings 733 are arranged along the axis of the shaft of the direction changing rod 731, the direction changing device 73 further includes a lifting motor 734, a gear 735 is arranged on an output shaft of the lifting motor 734, the gear 735 is meshed with the toothed rings 733, a vertically arranged fixing key 736 is arranged on an output shaft of the steering motor 732, a key slot 737 is arranged in the direction changing rod 731, and the fixing key 736 is matched with the key slot 737.
Through the arrangement of the deviator 73, the camera 72 can rotate horizontally and lift vertically, and the camera 72 can acquire more pictures.
Referring to fig. 2 and 3, the traffic flow prediction module includes a prediction setting unit for setting a virtual measurement line on an image of the target detection section in the still image, and a prediction unit for acquiring a traffic flow passing through the target detection section in each unit time from the virtual measurement line. The evaluation unit is used for evaluating the traffic flow in the static image.
The lane change determination system switches the lane-change signboard 512 to the left turn signal and switches the previous signboard 522 to the pass signal when the traffic flow of the left turn lane 2 is greater than the set value, based on the traffic flow evaluated by the evaluation unit.
The lane change judging system controls the lane change indicator board 512 and the previous indicator board 522 based on the traffic flow estimated by the estimating unit, so that the cost caused by manual monitoring is avoided, the problem of timing opening is also avoided, and the lane change can be timely carried out under the condition that the lane change is not needed due to the timing opening, and the problem of traffic jam is caused instead.
The lane changing judgment system controls the lane changing indicator board 512 and the previous indicator board 522 based on the traffic flow estimated by the estimation unit, the intersection is provided with a variable left-turn lane 2, 18 vehicles can pass through in one period, 10 vehicles can pass through in the flat peak, the time of left-turn green light at the original intersection is compressed for 5 seconds and distributed to the straight vehicles, 16-27 vehicles can pass through in the single period of the peak, 8-12 vehicles can pass through in the flat peak, and the crossing traffic efficiency is improved by about 36.5%.
Example 2: the invention discloses a traffic indicating method for improving crossing traffic efficiency, which comprises the following specific steps:
s1: the direction changing device drives the camera to rotate to obtain a static image of the traffic flow, the prediction setting unit sets a virtual measuring line on an image of a target detection road section in the static image, and the traffic flow passing through the target detection road section in each unit time is obtained according to the virtual measuring line;
s2: the evaluation unit evaluates the traffic flow in the static image;
s3: the lane change judging system switches the lane-changeable indicating board into a left-turn signal and switches the previous indicating board into a pass signal according to the traffic flow estimated by the estimating unit when the traffic flow of the left-turn lane is larger than a set value;
s4: and the time of turning the left green light at the intersection is compressed by 5 seconds and is distributed to the straight-going vehicles.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides an improve traffic indicating system of current efficiency at crossing which characterized in that: comprises at least one straight lane (1), at least one left-turn lane (2) and at least one exit lane (3), the exit lane (3) adjacent to the left-turn lane (2) is set as a variable lane (4),
still including lane change bootstrap system (5), lane change bootstrap system (5) are including lane change bootstrap device (51), lane change bootstrap device (51) are including first support (511), be equipped with variable lane indicator board (512) on first support (511), variable lane indicator board (512) are located variable lane (4) top, the changeable left turn signal of variable lane indicator board (512) and the prohibition is passed.
2. The traffic indicating system for improving intersection traffic efficiency according to claim 1, wherein: still be equipped with lane guide tablet (513) on first support (511), lane guide tablet (513) are located through lane (1) and left turn lane (2) top, lane guide tablet (513) are equipped with the straight mark corresponding to the position in through lane (1), lane guide tablet (513) are equipped with the left turn mark corresponding to left turn lane (2) top.
3. The traffic indicating system for improving intersection traffic efficiency according to claim 2, wherein: a previous guiding device (52) is arranged at the lane changing position of the variable lane (4), the previous guiding device (52) comprises a second bracket (521), a previous sign (522) is arranged on the second bracket (521), the previous sign (522) is positioned above the lane changing position of the variable lane (4), and the previous sign (522) can switch the passing signal and the no-passing signal.
4. The traffic indicating system for improving intersection traffic efficiency according to claim 3, wherein: the traffic indicating system also comprises a traffic signal indicating lamp arranged at the intersection.
5. The traffic indicating system for improving intersection traffic efficiency according to claim 4, wherein: the traffic indication system further comprises an image acquisition module (7) and a traffic flow prediction module, wherein the image acquisition module (7) comprises a third support (71) arranged at the intersection, a camera (72) is arranged on the third support (71), and the camera (72) is used for acquiring static images of traffic flows on the left-turn lane (2), the second road (9) and the third road (10).
6. The traffic indicating system for improving intersection traffic efficiency according to claim 5, wherein: be equipped with deviator (73) between camera (72) and third support (71), deviator (73) are including setting up deviator (731) on third support (71), deviator (731) are vertical, camera (72) set up on deviator (731) top, deviator (731) bottom is equipped with drive deviator (731) pivoted steering motor (732).
7. The traffic indicating system for improving intersection traffic efficiency according to claim 6, wherein: deviator (73) are including setting up ring gear (733) on deviator (731) pole body, ring gear (733) are equipped with a plurality ofly, ring gear (733) set up along the axis of deviator (731) pole body, deviator (73) still include elevator motor (734), be equipped with gear (735) on the output shaft of elevator motor (734), gear (735) and ring gear (733) meshing, be equipped with vertical fixed key (736) that set up on the output shaft of motor (732), be equipped with keyway (737) in deviator (731), fixed key (736) and keyway (737) cooperate.
8. The traffic indicating system for improving intersection traffic efficiency according to claim 5, wherein: the traffic flow prediction module comprises a prediction setting unit and a prediction unit,
the prediction setting unit is used for setting a virtual measuring line on the image of the target detection road section in the static image and acquiring the traffic flow passing through the target detection road section in each unit time according to the virtual measuring line;
and the evaluation unit is used for evaluating the traffic flow in the static image.
9. The traffic indicating system for improving intersection traffic efficiency according to claim 8, wherein: the traffic indication system further comprises a lane change judgment system which switches the lane-changeable sign (512) to a left-turn signal and switches the previous sign (522) to a pass signal when the traffic flow of the left-turn lane (2) is greater than a set value according to the traffic flow evaluated by the evaluation unit.
10. The traffic indication method for improving the crossing traffic efficiency is characterized in that: the method comprises the following specific steps:
s1: the direction changing device (73) drives the camera (72) to rotate to obtain a static image of the traffic flow, the prediction setting unit sets a virtual measuring line on an image of a target detection road section in the static image, and the traffic flow passing through the target detection road section in each unit time is obtained according to the virtual measuring line;
s2: the evaluation unit evaluates the traffic flow in the static image;
s3: the lane change judging system switches the lane change indicator (512) to a left turn signal and switches the previous indicator (522) to a pass signal when the traffic flow of the left turn lane (2) is greater than a set value according to the traffic flow evaluated by the evaluation unit;
s4: and the time of turning the left green light at the intersection is compressed by 5 seconds and is distributed to the straight-going vehicles.
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| CN201911417372.3A CN111063193A (en) | 2019-12-31 | 2019-12-31 | Traffic indicating system and method for improving crossing traffic efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113034914A (en) * | 2021-03-23 | 2021-06-25 | 同济大学建筑设计研究院(集团)有限公司 | Highway hard shoulder dynamic adjustment system and method |
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Application publication date: 20200424 |