Lane structure of road intersection and traffic control method
By designing lane structure and traffic control methods at urban intersections, and using variable lane and signal light control, the problem of low vehicle traffic efficiency is solved, and efficient traffic flow and safe traffic is achieved.
Patent Information
- Application Number
- CN202510123772.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2025-03-14
AI Technical Summary
Vehicle traffic efficiency at urban intersections is low, resulting in traffic congestion and increased pressure.
A lane structure for road intersections is designed, including a turn-over and left-turn combined lane, a first left-turn lane, a first straight-turn lane and a right-turn lane, and a first and second variable lanes. Through signal light control and above-ground sensing equipment detection, efficient diversion and passage of vehicles are achieved.
It improves the efficiency of vehicles passing at intersections, alleviates traffic pressure, simplifies driver operations, and improves traffic safety.
Smart Images
Figure CN119615689A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of traffic road construction, and in particular to a lane structure and a traffic control method at a road intersection. Background Art
[0002] The problem of urban traffic congestion is becoming more and more prominent. Urban traffic is the focus of urban construction, the difficulty of comprehensive management, and the pain point of people's livelihood projects. In order to achieve "smooth", "orderly" and "safe" to the greatest extent, the traffic management department has made a lot of efforts and introduced many innovations, such as "reverse lane borrowing", "reverse traffic", "variable lanes", etc., which have achieved relatively good results. However, due to the different basic road environments in various places and the uneven cognitive levels of different drivers in the face of new control methods, it has not yet been fully promoted.
[0003] The lane width of urban roads, also known as the standard lane width, is generally set at about 3.5 meters. The width of the guide lane at the intersection is normally slightly narrower than the lane width. Multiple guide lanes are set accordingly according to the available width of the road. Taking the common four guide lanes as an example, from left to right, they are generally set as Lane 1 left turn lane, Lane 2 straight lane, Lane 3 straight lane, and Lane 4 right turn lane. If the number of vehicles coming in one direction is greater than the number of vehicles passing through in a traffic light cycle, then after multiple traffic light cycles, the vehicles will cause a backlog, which will affect the normal passage of motor vehicles in other directions. If a separate setting is made to extend the passage time in this direction, the single cycle will be lengthened, and the relative number of vehicles coming in other directions will increase accordingly. If the green light passage time is also extended accordingly, the pressure on traffic control will become greater and greater.
[0004] Therefore, how to improve the vehicle traffic efficiency at intersections is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention
[0005] In order to solve the above technical problems, the present application provides a lane structure at a road intersection, which can improve the traffic efficiency of vehicles at the intersection. The present application also provides a traffic control method at a road intersection, which has the same technical effect.
[0006] The first object of the present application is to provide a lane structure for a road intersection.
[0007] The above-mentioned application objective 1 of the present application is achieved through the following technical solutions: A lane structure of a road intersection, comprising: a combined U-turn and left-turn lane, a first left-turn lane, a first straight lane and a right-turn lane, which are adjacent to each other from left to right based on the vehicle passing direction, a first variable lane arranged at the downstream part of the combined U-turn and left-turn lane, and a second variable lane arranged at the downstream part of the first left-turn lane, wherein: The first through lane and the right turn lane are both connected to a road intersection; The U-turn and left-turn shared lane and the first variable lane are located on the same straight line; The first left-turn lane and the second variable lane are located on the same straight line; The first variable lane and the second variable lane are both connected to the road intersection; A lane change area is provided between the first variable lane and the U-turn and left-turn combined lane, and between the second variable lane and the first left-turn lane; A first stop line is provided at the junction of the first variable lane, the second variable lane and the first through lane with the road intersection; A second stop line is provided at the junction of the U-turn and left-turn shared lane and the first left-turn lane with the lane-changing area; A first signal light for instructing vehicles to enter the first variable lane and the second variable lane in due time is provided downstream of the second stop line; At least one detour entrance is provided between the first straight lane and the second variable lane; The first through lane is provided with at least one second signal light for instructing vehicles to pass through the through lane entrance in due time.
[0008] Preferably, in the lane structure of the road intersection, the surfaces of the combined U-turn and left-turn lane, the first left-turn lane, the first through lane and the right-turn lane are all provided with driving guide markings for use with them.
[0009] Preferably, in the lane structure of the road intersection, the detour entrance is provided with a road ground LED display device for use with it, wherein: The road ground LED display device is used to display the detour guide markings.
[0010] Preferably, in the lane structure of the road intersection, the road ground LED display device is also used to display dotted line markings and solid line markings.
[0011] Preferably, the lane structure of the road intersection further includes ground sensing equipment, wherein: The ground sensing device is used to detect whether there are vehicles in the first variable lane and the second variable lane.
[0012] Preferably, the lane structure of the road intersection further includes at least one second through lane between the first through lane and the right-turn lane.
[0013] Preferably, the lane structure of the road intersection further includes at least one second left-turn lane between the U-turn and left-turn combined lane and the first left-turn lane, and a third variable lane provided at a downstream portion of each of the second left-turn lanes; Each of the second left-turn lanes and the third variable lane at its downstream portion are located on the same straight line; Each of the third variable lanes is connected to the road intersection; The lane change area is provided between each of the second left-turn lanes and the third variable lane at its downstream portion; The first stop line is provided at the junction of the first variable lane, the second variable lane, the first through lane and each of the third variable lanes with the road intersection; The second stop line is provided at the junction of the U-turn and left-turn shared lane, the first left-turn lane and each of the second left-turn lanes with the lane change area; The first signal light for instructing vehicles to enter the first variable lane, the second variable lane and the third variable lane in a timely manner is provided downstream of the second stop line.
[0014] The second objective of the present application is to provide a traffic control method for a road intersection.
[0015] The second application objective of the present application is achieved through the following technical solutions: A traffic control method for a road intersection is applied to the lane structure of the road intersection as described above, wherein the lane structure includes a combined U-turn and left-turn lane, a first left-turn lane, a first straight lane and a right-turn lane, which are adjacent to each other from left to right based on the vehicle traffic direction, a first variable lane arranged at the downstream part of the combined U-turn and left-turn lane, and a second variable lane arranged at the downstream part of the first left-turn lane, and the vehicles at the road intersection go straight first and then turn left, and the control sequence of the main signal lights at the intersection is that the other party goes straight, the other party turns left, our party goes straight and our party turns left as one cycle, and the method includes: When the main signal light at the intersection corresponding to the opposite lane of the lane structure is a left turn green light, the second signal light is controlled to change from red to green, and the straight-moving vehicles in the first straight lane can use the borrowing entrance to pass through the first variable lane or the second variable lane; When the main signal light at the intersection corresponding to the lane structure is a straight green light, the second signal light is controlled to change from green to red, and straight vehicles in the first straight lane, the first variable lane and the second variable lane can go straight through the intersection. At the same time, the first signal light is controlled to change from a left turn red light to a left turn green light, and left-turning vehicles behind the second stop line can pass through the first variable lane or the second variable lane; When the main signal light at the intersection corresponding to the lane structure is a left-turn green light, the first signal light is controlled to change from a left-turn green light to a left-turn red light.
[0016] Preferably, the traffic control method for the road intersection also includes: at a preset time before the straight green light of the main signal light at the intersection corresponding to the lane structure ends, controlling the second signal light to change from green to red, and at the same time, controlling the first signal light to change from a left turn red light to a left turn green light, so that left-turning vehicles behind the second stop line can pass through the first variable lane or the second variable lane.
[0017] Preferably, in the traffic control method for the road intersection, the lane structure further includes a ground sensing device, and the ground sensing device is used to detect whether there are vehicles in the first variable lane and the second variable lane, and the method further includes: Before the main traffic light at the intersection corresponding to the opposite lane of the lane structure in each cycle changes to a left turn green light, using the ground sensing device to detect whether there are vehicles in the first variable lane and the second variable lane; If there is a vehicle, then in the current cycle, the second signal light is controlled to remain red.
[0018] The above technical solution, by setting the first variable lane and the second variable lane, and using them in conjunction with the first signal light and the second signal light, can divert the first straight lane through the first variable lane and the second variable lane in peak conditions, thereby improving the traffic efficiency of the intersection. In addition, the traffic mode of the above lane structure is simple and easy to use. The driver can drive according to the instructions of the first signal light and the second signal light and normal traffic rules. It is easy to master and can effectively alleviate the traffic pressure at the intersection. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 A schematic diagram of a lane structure at a road intersection in an embodiment of the present application; Figure 2 Schematic diagram of dotted line markings of a bypass entrance in an embodiment of the present application, wherein Figure (a) is a schematic diagram of a dotted line marking, and Figure (b) is another schematic diagram of a dotted line marking; Figure 3 It is a flowchart of a method for controlling traffic at a road intersection in an embodiment of the present application. DETAILED DESCRIPTION
[0021] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0022] A person skilled in the art can understand that all or part of the steps of the following method embodiments can be completed by program instructions and related hardware. The aforementioned program instructions can be stored in a computer-readable storage medium. When the program instructions are executed, the steps of the following method embodiments are executed; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM), a magnetic disk or an optical disk, and other media that can store program codes.
[0023] It should be understood that the use of "system", "device", "unit" and / or "module" in this application is only a method for distinguishing different components, elements, parts, parts or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.
[0025] If a flow chart is used in the present application, the flow chart is used to illustrate the operations performed by the system according to the embodiment of the present application. It should be understood that the preceding or following operations are not necessarily performed accurately in order. On the contrary, each step can be processed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or a certain step or several steps of operations can be removed from these processes.
[0026] It should also be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such articles or devices. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the article or device including the above elements.
[0027] The embodiments of the present application are written in a progressive manner.
[0028] like Figure 1 As shown, the embodiment of the present application provides a lane structure of a road intersection, including: a U-turn and left-turn combined lane 1, a first left-turn lane 2, a first straight lane 3 and a right-turn lane 4, which are adjacent to each other from left to right based on the vehicle travel direction, a first variable lane 5 arranged at the downstream part of the U-turn and left-turn combined lane 1, and a second variable lane 6 arranged at the downstream part of the first left-turn lane 2, wherein: The first straight lane 3 and the right turn lane 4 are both connected to the road intersection; the U-turn and left turn shared lane 1 and the first variable lane 5 are located on the same straight lane; the first left turn lane 2 and the second variable lane 6 are located on the same straight lane; the first variable lane 5 and the second variable lane 6 are both connected to the road intersection; a lane change area 7 is provided between the first variable lane 5 and the U-turn and left turn shared lane 1, and between the second variable lane 6 and the first left turn lane 2; Specifically, the U-turn and left-turn combined lane 1, the first left-turn lane 2, the first straight lane 3 and the right-turn lane 4 are provided with same-direction lane dividing lines; the ends of the first straight lane 3 and the right-turn lane 4 are both connected to the road intersection; the first variable lane 5 and the second variable lane 6 are provided with variable guide lane markings; the ends of the first variable lane 5 and the second variable lane 6 are both connected to the road intersection; vehicles located in the U-turn and left-turn combined lane 1 and the first left-turn lane 2 can enter the first variable lane 5 or the second variable lane 6 through the lane changing area 7.
[0029] A first stop line 8 is provided at the junction of the first variable lane 5, the second variable lane 6 and the first straight lane 3 with the road intersection; a second stop line 9 is provided at the junction of the U-turn and left-turn shared lane 1 and the first left-turn lane 2 with the lane change area 7; a first signal light 10 is provided downstream of the second stop line 9 for indicating that vehicles enter the first variable lane 5 and the second variable lane 6 in a timely manner; Specifically, vehicles entering the first variable lane 5, the second variable lane 6 and the first straight lane 3 are subject to the traffic control of the main signal lights at the intersection corresponding to the lane structure, wherein the main signal lights at the intersection can be set at each exit side of the intersection; vehicles entering the U-turn and left turn shared lane 1 and the first left turn lane 2 are subject to the traffic control of the first signal light 10.
[0030] At least one bypass entrance is provided between the first straight lane 3 and the second variable lane 6; at least one second signal light 11 is provided on the first straight lane 3 for instructing vehicles to pass through the bypass entrance in due time to go straight and bypass the lane.
[0031] Specifically, the number of the borrowing entrances can be set based on actual needs. The more the number of the borrowing entrances, the higher the efficiency of the straight-through borrowing. The second signal light 11 can be set on the first straight lane 3 and downstream of the borrowing entrance. Vehicles entering the first straight lane 3 are controlled by the straight-through borrowing of the second signal light 11. Preferably, one of the borrowing entrances can be set at the junction of the second variable lane 6 and the lane changing area 7. Vehicles in the first straight lane 3 can enter the lane changing area 7 through the borrowing entrance, and then enter the first variable lane 5 or the second variable lane 6 for borrowing.
[0032] In the above embodiment, by setting the first variable lane 5 and the second variable lane 6, and using them in conjunction with the first signal light 10 and the second signal light 11, the first variable lane 5 and the second variable lane 6 can be used to divert the first straight lane 3 during peak traffic conditions, thereby improving the vehicle traffic efficiency at the intersection.
[0033] In other embodiments of the present application, the surfaces of the U-turn and left-turn combined lane 1, the first left-turn lane 2, the first straight lane 3 and the right-turn lane 4 are all provided with driving guide markings for use with them.
[0034] Specifically, the driving guide markings include U-turn and left-turn guide arrow markings arranged on the U-turn and left-turn combined lane 1, the left-turn guide arrow markings arranged on the first left-turn lane 2, the straight-driving guide arrow markings arranged on the first straight lane 3, and the right-turn guide arrow markings arranged on the right-turn lane 4. By setting the driving guide markings, different lane functions can be clearly divided to instruct vehicles to drive in designated lanes.
[0035] In other embodiments of the present application, the detour entrance is provided with a road ground LED display device 12 for use therewith, wherein: the road ground LED display device 12 is used to display detour guide markings; the road ground LED display device 12 is also used to display dotted markings and solid markings.
[0036] Specifically, the road surface LED display device 12 has the characteristics of high brightness, high contrast, and bright colors. Even in adverse weather conditions, such as heavy fog and rainstorms, it can maintain good visual effects, allowing the driver to clearly see the display content. When straight-through traffic is allowed, the road surface LED display device 12 can display the lane guide markings on the ground in the lane direction, where the lane guide markings can be oblique arrow markings; when straight-through traffic is prohibited, the road surface LED display device 12 can stop displaying the lane guide markings; when straight-through traffic is allowed, the road surface LED display device 12 can also display dotted markings on the ground in the lane direction. The two forms of dotted markings are as follows: Figure 2 As shown; when straight-through passing is prohibited, the road surface LED display device 12 can change the dotted line marking to a solid line marking. Among them, lane changing is prohibited at the solid line, and crossing lane changing is allowed according to the national standard for the dotted and solid lines. Through the road surface LED display device 12, the instruction information of passing through the lane can be conveyed to the driver more intuitively, improving the traffic safety and efficiency of the intersection. In other embodiments, the road surface LED display device 12 can also have its own audio function to prompt the driver to change lanes in advance through sound.
[0037] In other embodiments of the present application, the lane structure of the above-mentioned road intersection also includes a ground sensing device, wherein: the ground sensing device is used to detect whether there are vehicles in the first variable lane 5 and the second variable lane 6.
[0038] Specifically, the ground sensing equipment can adopt existing vehicle detection devices such as video detectors or radar detectors; through the ground sensing equipment, it can detect whether there are vehicles in the first variable lane 5 and the second variable lane 6, and based on the detection results, when the straight lane starts, the second signal light 11 and the road ground LED display device 12 can convey the straight lane instruction information.
[0039] In other embodiments of the present application, the number of guide lanes may be more than 4. For example, in some embodiments, the lane structure of the road intersection further includes at least one second straight lane between the first straight lane 3 and the right turn lane 4. In other embodiments, the lane structure of the road intersection further includes at least one second left turn lane between the U-turn and left turn shared lane 1 and the first left turn lane 2, and a third variable lane located at the downstream portion of each second left turn lane, wherein: Each second left-turn lane and the third variable lane at its downstream portion are located on the same straight lane; each third variable lane is connected to a road intersection; a lane changing area 7 is provided between each second left-turn lane and the third variable lane at its downstream portion; a first stop line 8 is provided at the junction of the first variable lane 5, the second variable lane 6, the first straight lane 3 and each third variable lane with the road intersection; a second stop line 9 is provided at the junction of the U-turn and left-turn shared lane 1, the first left-turn lane 2 and each second left-turn lane with the lane changing area 7; a first signal light 10 is provided downstream of the second stop line 9 for instructing vehicles to enter the first variable lane 5, the second variable lane 6 and the third variable lane at an appropriate time.
[0040] Specifically, the end of each third variable lane is connected to the road intersection; vehicles located in the U-turn and left turn shared lane 1, the first left turn lane 2 and the second left turn lane can enter the first variable lane 5, the second variable lane 6 or the third variable lane through the lane change area 7. Vehicles entering the first variable lane 5, the second variable lane 6, the third variable lane and the first straight lane 3 are controlled by the main traffic lights of the intersection corresponding to the lane structure, and vehicles entering the U-turn and left turn shared lane 1, the first left turn lane 2 and the second left turn lane are controlled by the first traffic light 10. In this embodiment, by expanding the guide lane, the vehicle traffic efficiency at the intersection can also be improved.
[0041] like Figure 3 As shown, in another embodiment of the present application, a traffic control method for a road intersection is also provided, which is applied to the lane structure of the road intersection as described above, wherein the lane structure includes a U-turn and left-turn combined lane 1, a first left-turn lane 2, a first straight lane 3 and a right-turn lane 4, which are adjacent to each other from left to right based on the vehicle travel direction, a first variable lane 5 provided at the downstream part of the U-turn and left-turn combined lane 1, and a second variable lane 6 provided at the downstream part of the first left-turn lane 2. Vehicles at the road intersection go straight first and then turn left. The control sequence of the main signal lights at the intersection is that the other party goes straight, the other party turns left, our party goes straight and our party turns left (including right turns not controlled by lights) as one cycle. The method includes: S101. When the main signal light at the intersection corresponding to the opposite lane of the lane structure is a left turn green light, the second signal light 11 is controlled to change from red to green, and the straight-moving vehicles in the first straight lane 3 can pass through the borrowing entrance to the first variable lane 5 or the second variable lane 6; In S101, specifically, the party where the above-mentioned vehicle structure is located is taken as our party, and the party where the opposite lane of the above-mentioned lane structure is located is taken as the other party. When the main signal light of the intersection corresponding to the opposite lane of the lane structure is a left turn green light, that is, when the other party turns left, the second signal light 11 is controlled to change from red to green to indicate that the straight-moving vehicles in the first straight lane 3 can use the pass-through entrance to the first variable lane 5 or the second variable lane 6 to pass through the pass-through entrance; in other embodiments, the above-mentioned lane structure also includes a road ground LED display device 12, which can synchronously control the road ground LED display device 12 to display the pass-through guide markings, and change the solid line markings to dotted line markings. The vehicles passing through the pass-through can only pass through the dotted pass-through entrance where the lane can be changed, so as to prevent traffic accidents caused by competition. The straight-moving vehicles entering the two variable lanes are ultimately controlled by the main signal light and the straight-moving light of the intersection, just like the straight-moving vehicles in the first straight lane 3.
[0042] S102. When the main signal light at the intersection corresponding to the lane structure is a straight green light, the second signal light 11 is controlled to change from green to red, and the straight vehicles in the first straight lane 3, the first variable lane 5 and the second variable lane 6 can go straight through the intersection. At the same time, the first signal light 10 is controlled to change from a left turn red light to a left turn green light, and the left-turning vehicles behind the second stop line 9 can pass through the first variable lane 5 or the second variable lane 6; In S102, specifically, when the main signal light of the intersection corresponding to the lane structure is the straight green light, that is, when we are going straight, the straight vehicles in the first straight lane 3, the first variable lane 5 and the second variable lane 6 can go straight through the intersection, because there are three lanes of straight vehicles that can be queued in the guide lane, which is generally equivalent to the number of vehicles coming in one traffic light cycle, thereby alleviating the traffic pressure at the intersection and improving the vehicle traffic efficiency at the intersection; at this time, the second signal light 11 is controlled to change from green to red. If the above lane structure also includes a road ground LED display device Setting 12 can synchronously control the road ground LED display device 12 to stop displaying the detour guide marking line, and change the dotted line marking line to a solid line marking line. The straight-moving vehicles in the first straight lane 3 are prohibited from passing through the detour entrance. The straight-moving vehicles behind will have an initial speed to move forward, and the traffic efficiency will be very high, and they can only travel in the first straight lane 3; at the same time, the first signal light 10 is controlled to change from a left-turn red light to a left-turn green light. The left-turning vehicles behind the second stop line 9 can pass through the first variable lane 5 or the second variable lane 6, and the left-turning vehicles are subject to the secondary control of the left-turn light of the main signal light at the intersection.
[0043] In some other embodiments, when the number of straight-moving vehicles is large, step S102 may be replaced by: when the main signal light of the intersection corresponding to the lane structure is a straight-moving green light, straight-moving vehicles in the first straight lane 3, the first variable lane 5, and the second variable lane 6 may go straight through the intersection, and at a preset time before the straight-moving green light of the main signal light of the intersection corresponding to the lane structure ends, the second signal light 11 is controlled to change from a green light to a red light, and at the same time, the first signal light 10 is controlled to change from a left-turn red light to a left-turn green light, and left-turning vehicles located behind the second stop line 9 may pass to the first variable lane 5 or the second variable lane 6; Specifically, the preset time can be set based on actual needs. For example, it can be set to 15 seconds, that is, 15 seconds before the straight green light of the main signal light at the intersection corresponding to the lane structure ends, the second signal light 11 is controlled to change from green to red. The straight-moving vehicles that have entered the variable lane can pass through the intersection before the straight-moving main signal light at the intersection turns red, and will not interfere with the left-turning vehicles passing behind.
[0044] S103. When the main signal light at the intersection corresponding to the lane structure is a left-turn green light, the first signal light 10 is controlled to change from a left-turn green light to a left-turn red light.
[0045] In S103, specifically, when the main signal light at the intersection corresponding to the lane structure is a left turn green light, that is, when we turn left, the first signal light 10 is controlled to change from a left turn green light to a left turn red light, and the left-turning vehicles located after the second stop line 9 wait to enter the next cycle. Among them, the time of the left turn green light of the main signal light at the intersection corresponding to the lane structure can be reasonably set based on actual needs. In other embodiments, when the number of left-turning vehicles is large, the first signal light 10 can also be controlled to change from a left turn green light to a left turn red light at a set time before the left turn green light of the main signal light at the intersection corresponding to the lane structure ends, and the present application is not limited to this.
[0046] In the above embodiment, by setting the first variable lane 5 and the second variable lane 6, and using them in conjunction with the first signal light 10 and the second signal light 11, the first straight lane 3 can be diverted by the first variable lane 5 and the second variable lane 6 during peak traffic conditions, thereby improving the traffic efficiency of the intersection. In addition, the traffic mode of the above lane structure is simple and easy to use. The driver can drive according to the instructions of the first signal light 10 and the second signal light 11 and normal traffic rules. It is easy to master and can effectively alleviate the traffic pressure at the intersection.
[0047] In other embodiments of the present application, the lane structure further includes a ground sensing device, which is used to detect whether there are vehicles in the first variable lane 5 and the second variable lane 6. The traffic control method at the road intersection also includes: S201. Before the main signal light at the intersection corresponding to the opposite lane of the lane structure in each cycle turns to the left turn green light, a ground sensing device is used to detect whether there are vehicles in the first variable lane 5 and the second variable lane 6; if there are vehicles, the second signal light 11 is controlled to remain red in the current cycle.
[0048] Specifically, the control sequence of the main signal light at the intersection is that the other party at the intersection goes straight, the other party turns left, our party goes straight, and our party turns left (including right turns not controlled by the light) as one cycle. Before the start of each cycle of straight-through borrowing, that is, before the main signal light at the intersection corresponding to the opposite lane of the lane structure changes to a left-turn green light, the ground sensing device is used to detect whether there are vehicles in the first variable lane 5 and the second variable lane 6. If there are vehicles in the first variable lane 5 or the second variable lane 6, then in the current cycle, the second signal light 11 is controlled to remain red, and all straight-going vehicles in the first straight lane 3 are prohibited from borrowing. In other embodiments, if there are vehicles in the first variable lane 5 or the second variable lane 6, in the current cycle, the second signal light 11 and the road ground LED display device 12 can also be used to indicate that straight-going vehicles in the first straight lane 3 are prohibited from borrowing through the variable lane where there are still vehicles. Theoretically, the probability of the above variable lanes not being cleared of vehicles is quite small, because by properly setting the timing of the main traffic lights at the intersection corresponding to the lane structure, it is entirely possible to ensure that the variable lanes are completely cleared of vehicles. And so on, for circular traffic.
[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A lane structure at a road intersection, characterized in that: include: Based on the vehicle travel direction, the U-turn and left-turn combined lane, the first left-turn lane, the first straight lane and the right-turn lane are adjacent from left to right, the first variable lane located at the downstream part of the U-turn and left-turn combined lane, and the second variable lane located at the downstream part of the first left-turn lane, wherein: The first through lane and the right turn lane are both connected to a road intersection; The U-turn and left-turn shared lane and the first variable lane are located on the same straight line; The first left-turn lane and the second variable lane are located on the same straight line; The first variable lane and the second variable lane are both connected to the road intersection; A lane change area is provided between the first variable lane and the U-turn and left-turn combined lane, and between the second variable lane and the first left-turn lane; A first stop line is provided at the junction of the first variable lane, the second variable lane and the first through lane with the road intersection; A second stop line is provided at the junction of the U-turn and left-turn shared lane and the first left-turn lane with the lane-changing area; A first signal light for instructing vehicles to enter the first variable lane and the second variable lane in due time is provided downstream of the second stop line; At least one detour entrance is provided between the first straight lane and the second variable lane; The first through lane is provided with at least one second signal light for instructing vehicles to pass through the through lane entrance in due time.
2. The lane structure of a road intersection as claimed in claim 1, characterized in that: The surfaces of the U-turn and left-turn combined lane, the first left-turn lane, the first straight lane and the right-turn lane are all provided with driving guide markings for use with them.
3. The lane structure of a road intersection as claimed in claim 1, characterized in that: The above mentioned entrances are all equipped with LED display devices on the road surface for use with the others, including: The road ground LED display device is used to display the detour guide markings.
4. The lane structure of a road intersection as claimed in claim 3, characterized in that: The road surface LED display device is also used to display dotted line markings and solid line markings.
5. The lane structure of a road intersection as claimed in claim 1, characterized in that: Also included are above ground sensing devices, where: The ground sensing device is used to detect whether there are vehicles in the first variable lane and the second variable lane.
6. The lane structure of a road intersection as claimed in claim 1, characterized in that: Also included is at least one second through lane between the first through lane and the right-turn lane.
7. The lane structure of a road intersection as claimed in claim 1, characterized in that: Also included is at least one second left-turn lane between the U-turn and left-turn shared lane and the first left-turn lane, and a third variable lane provided at a downstream portion of each of the second left-turn lanes; Each of the second left-turn lanes and the third variable lane at its downstream portion are located on the same straight line; Each of the third variable lanes is connected to the road intersection; The lane change area is provided between each of the second left-turn lanes and the third variable lane at its downstream portion; The first stop line is provided at the junction of the first variable lane, the second variable lane, the first through lane and each of the third variable lanes with the road intersection; The second stop line is provided at the junction of the U-turn and left-turn shared lane, the first left-turn lane and each of the second left-turn lanes with the lane change area; The first signal light for instructing vehicles to enter the first variable lane, the second variable lane and the third variable lane in a timely manner is provided downstream of the second stop line.
8. A method for controlling traffic at a road intersection, characterized in that: A lane structure applied to a road intersection as claimed in claim 1, wherein the lane structure includes a combined U-turn and left-turn lane, a first left-turn lane, a first straight lane and a right-turn lane, which are adjacent to each other from left to right based on the direction of vehicle travel, a first variable lane located at the downstream portion of the combined U-turn and left-turn lane, and a second variable lane located at the downstream portion of the first left-turn lane, wherein the vehicles at the road intersection go straight first and then turn left, and the control sequence of the main traffic lights at the intersection is that the other party goes straight, the other party turns left, our party goes straight and our party turns left as one cycle, and the method comprises: When the main signal light at the intersection corresponding to the opposite lane of the lane structure is a left turn green light, the second signal light is controlled to change from red to green, and the straight-moving vehicles in the first straight lane can use the borrowing entrance to pass through the first variable lane or the second variable lane; When the main signal light at the intersection corresponding to the lane structure is a straight green light, the second signal light is controlled to change from green to red, and straight vehicles in the first straight lane, the first variable lane and the second variable lane can go straight through the intersection. At the same time, the first signal light is controlled to change from a left turn red light to a left turn green light, and left-turning vehicles behind the second stop line can pass through the first variable lane or the second variable lane; When the main signal light at the intersection corresponding to the lane structure is a left-turn green light, the first signal light is controlled to change from a left-turn green light to a left-turn red light.
9. The method as claimed in claim 8, characterized in that Also includes: At a preset time before the straight green light of the main signal light at the intersection corresponding to the lane structure ends, the second signal light is controlled to change from green to red, and at the same time, the first signal light is controlled to change from the left turn red light to the left turn green light, and left-turning vehicles behind the second stop line can pass through the first variable lane or the second variable lane.
10. The method as claimed in claim 8, characterized in that The lane structure further includes a ground sensing device, and the ground sensing device is used to detect whether there are vehicles in the first variable lane and the second variable lane. The method further includes: Before the main traffic light at the intersection corresponding to the opposite lane of the lane structure in each cycle changes to a left turn green light, using the ground sensing device to detect whether there are vehicles in the first variable lane and the second variable lane; If there is a vehicle, then in the current cycle, the second signal light is controlled to remain red.