Clockwise roundabout traffic diversion system and passing method

Abstract

The invention discloses a clockwise roundabout traffic diversion system and a passing method. The clockwise roundabout traffic diversion system comprises a central island and a driving road, the number of the driving roads is n, the driving roads are radially arranged around the central island, and each driving road comprises (n-1) island entering lanes and (n-2) island exiting lanes; in all island entering lanes of any driving road, the rightmost island entering lane is connected with the leftmost island exiting lane in another adjacent driving road on the right side through a transition lane driving in the anticlockwise direction; the remaining (n-2) island entering lanes are respectively connected with the island exiting lanes with the corresponding serial numbers in the driving roads with the corresponding serial numbers through transition roads driving in the clockwise direction; all the transition roads are arranged around the central island, in the transition roads in the roundabout, the transition roads turning right are arranged on the outermost side, and the remaining transition roads are arranged in the inside-outside direction according to the minimum crossing principle. According to the scheme, the driving interference phenomenon caused by different entrances and exits of vehicles in the roundabout can be reduced, and the passing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of road traffic, and in particular to a clockwise roundabout traffic diversion system and a traffic method. Background Art

[0002] In the prior art, at multi-fork intersections, such as five-fork intersections, the traffic diversion effect of only relying on conventional traffic lights is not good, and it is easy to cause traffic congestion and chaos at the intersection. Therefore, some areas will use roundabouts to ease traffic. Conventional roundabouts are counterclockwise. Since the entrances and exits of vehicles are different, complex lane changes often occur in the roundabout, which easily causes driving interference between vehicles. The traffic efficiency of the roundabout is poor and needs to be improved. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a clockwise roundabout traffic diversion system and a traffic method.

[0004] The technical solution of the present invention is as follows: A clockwise roundabout traffic diversion system, characterized in that it includes a central island and a driving road;

[0005] There are n driving roads arranged radially around the central island, each of which is a two-way road, with the left side being the direction of leaving the island and the right side being the direction of entering the island, and each of which includes n-1 lanes for entering the island and n-2 lanes for leaving the island;

[0006] In all lanes approaching the island on any road of travel:

[0007] The rightmost lane for entering the island is connected to the leftmost lane for exiting the island in another adjacent driving road on the right through a transition lane running in a counterclockwise direction;

[0008] The remaining n-2 island-entry lanes are numbered in order from left to right, the remaining n-2 driving roads are numbered in a clockwise direction, and the n-2 island-exit lanes in each driving road are numbered in order from right to left. Each island-entry lane is connected to the corresponding numbered island-exit lane in the corresponding numbered driving road through a transition road running in a clockwise direction;

[0009] All transition roads are set around the center island and are interwoven in the following manner: at the roundabout of any driving road, Ai is defined as the i-th lane entering the island, sorted from the right shoulder to the center of the road, Bi is defined as the i-th lane leaving the island, sorted from the center of the road to the left shoulder, Ci is defined as the i-th lane from the outside of the roundabout to the inside of the roundabout, and Di is defined as the i-th lane on the left side of the intersection, sorted from the outside of the roundabout to the inside of the roundabout;

[0010] Then in the weaving mode of the n-way roundabout, except for A 1 Lian C 1 , D 1 Lian B n-2 outside,

[0011] A k even

[0012] C 2 To Cn -1 C k Lian B k-1 ,

[0013] Cn to In and Connection, where To round up.

[0014] A method for passing through a clockwise roundabout traffic diversion system, the method for passing through is as follows:

[0015] S1. When the vehicle is driving on the driving road, it should select the corresponding island entry lane according to the required exit direction, then drive into the roundabout in a clockwise direction, and finally leave the roundabout from the island exit lane of the driving road corresponding to the exit direction. If the vehicle needs to turn right to the adjacent driving road, it should directly drive into the rightmost island entry lane;

[0016] S2. When a vehicle enters a roundabout, whether turning left or right, it must give way to other vehicles driving in the roundabout;

[0017] S3. When vehicles exit a roundabout, vehicles turning right must give way to other vehicles exiting the roundabout.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This solution can effectively reduce the driving interference caused by different entrances and exits of vehicles in the roundabout, and improve the traffic efficiency of the roundabout.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0022] Figure 1 It is an overall schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the lower driving road entering and exiting the roundabout of the present invention;

[0024] Figure 3 It is a schematic diagram of the weaving before the reverse of the lane intersection;

[0025] Figure 4 It is a schematic diagram of a special weaving pattern at a lane intersection.

[0026] Reference numerals:

[0027] 1. Driving road; 2. Lane for entering the roundabout; 3. Lane for leaving the roundabout; 4. Transition road; 5. Pedestrian lane and non-motorized vehicle lane across the roundabout; 6. Lane on the right side of the intersection within the roundabout and continuing to go straight within the roundabout; 7. Lane on the right side of the intersection within the roundabout and about to leave the roundabout to the left; 8. Pedestrian lane and non-motorized vehicle lane across the intersection. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] like Figure 1-Figure 2 A clockwise roundabout traffic diversion system is shown, comprising a central island and a driving road 1.

[0031] There are n driving roads 1 which are arranged radially around the central island. Each driving road 1 is a two-way road, with the left direction being the direction of exiting the island and the right direction being the direction of entering the island. Each driving road 1 includes n-1 lanes 2 for entering the island and n-2 lanes 3 for exiting the island.

[0032] Among all the island-entry lanes 2 on any driving road 1: the rightmost island-entry lane 2 is connected to the leftmost island-exit lane 3 in another driving road 1 adjacent to the right through a transition lane running in a counterclockwise direction; the remaining n-2 island-entry lanes 2 are numbered in order from left to right, the remaining n-2 driving roads 1 are numbered in a clockwise direction, and the n-2 island-exit lanes 3 in each driving road 1 are numbered in order from right to left; each island-entry lane 2 is connected to the island-exit lane 3 of the corresponding number in the driving road 1 of the corresponding number through a transition road 4 running in a clockwise direction; all transition roads 4 are arranged around the central island.

[0033] Specifically, Figure 2 Taking the schematic diagram shown as an example, there are five driving roads 1 in total, and each driving road 1 includes four island entry lanes 2 and three island exit lanes 3.

[0034] by Figure 2 Take the middle and lower side of the driving road 1 for example. Figure 2 In the roundabout, the rightmost lane 2 for entering the island is connected to the leftmost lane 3 for exiting the island in another adjacent driving road 1 on the right through a transition lane running in a counterclockwise direction. Therefore, if a vehicle needs to turn right, it can directly enter the roundabout from the lane 2 for entering the island. The rightmost lane 2 for entering the island is not equipped with a stop line, which can speed up the traffic efficiency.

[0035] The remaining three island-entry lanes 2 are numbered from left to right, namely 1, 2, and 3. Except for the lower driving road 1 and the adjacent driving road 1 on the right, the remaining three driving roads 1 are numbered in a clockwise direction, namely 1, 2, and 3. The three island-exit lanes 3 in each driving road 1 are numbered from right to left, namely 1, 2, and 3.

[0036] The sequenced island-entry lanes 2, driving roads 1 and island-exit lanes 3 are grouped according to serial numbers, and each island-entry lane 2 is connected to the island-exit lane 3 of the corresponding serial number in the driving road 1 through a transition road 4 running in a clockwise direction, that is, the No. 1 island-entry lane 2 is connected to the No. 1 island-exit lane 3 in the No. 1 driving road 1 through a transition road 4 running in a clockwise direction, the No. 2 island-entry lane 2 is connected to the No. 2 island-exit lane 3 in the No. 2 driving road 1 through a transition road 4 running in a clockwise direction, and the No. 3 island-entry lane 2 is connected to the No. 3 island-exit lane 3 in the No. 3 driving road 1 through a transition road 4 running in a clockwise direction.

[0037] All transition roads are arranged around the central island. Among the transition roads within the roundabout, the right-turn transition roads are arranged on the outermost side, and the remaining transition roads are arranged in an inner and outer direction according to the principle of minimum intersection. The principle of minimum intersection will be described in detail below with reference to the attached drawings.

[0038] like Figure 3 As shown in FIG. 1 , in a roundabout, it is assumed that there are several driving roads (1), (2), (3), (4), (5), (6), (7) arranged counterclockwise. Figure 3-1 As shown in the figure, since the weaving method of lanes (1), (2), and (3) at the intersection is the same, the lane at (2) is copied to (1) for illustration. From (1) to (2), only two right turns are required, and it is placed on the outermost side. Similarly, after adding (1)→(7), the lane diagram of the roundabout is as follows: Figure 3-2 As shown; after adding (1)→(4), the lane map is as follows Figure 3-3 As shown; after adding (1)→(5), the lane map of the roundabout is as follows Figure 3-4 As shown in the figure. Since the roundabout has a highly centrally symmetrical nature, this representation method is also applicable to all entrances and exits of the roundabout except for the intersection (1), and the lane connection method is consistent with that at (1).

[0039] At this time, the relationship between the number of lanes and roundabout lanes is as follows: If it is an n-way roundabout, there must be at least Lanes, if there is no shared lane, the number of lanes is larger, and if you directly follow Figure 3-4 If they are arranged in the manner shown, many conflict points will be created. Figure 3 -5, except for the right turn lane, the lanes are reversed, then The lane becomes lanes, thereby greatly reducing the number of lanes in the roundabout.

[0040] like Figure 4 As shown, when the lanes are arranged in the above special way, the final vehicle leaving the island is controlled to be on the outermost side, and the following method can be obtained. Figure 4-1, the number of lanes in the weaving mode of the three-way roundabout is 1+1=2; Figure 4-2 , the number of weaving lanes at the intersection of a four-way roundabout is 1+1+2=4; Figure 4-3 , the number of weaving lanes at the intersection of a five-way roundabout is 1+1+2+3=7; Figure 4-4 , the number of lanes in the weaving mode of the six-way roundabout is 1+1+2+3+4=11; Figure 4 -5, the number of weaving lanes at the intersection of the seven-way roundabout is 1+1+2+3+4+5=16.

[0041] Then, the following rules can be summarized: at any roundabout on a driving road, Ai is defined as the i-th lane entering the roundabout from the right shoulder to the center of the road, Bi is defined as the i-th lane leaving the roundabout from the center of the road to the left shoulder, Ci is defined as the i-th lane from the outside of the roundabout to the inside of the roundabout, and Di is defined as the i-th lane on the left side of the intersection from the outside of the roundabout to the inside of the roundabout;

[0042] Then in the weaving mode of the n-way roundabout, except for A 1 Lian C 1 , D 1 Lian B n-2 outside,

[0043] A k even

[0044] C 2 To Cn -1 C k Lian B k-1 ,

[0045] Cn to In and Connection, where To round up.

[0046] When the vehicle is driving on the driving road 1, it selects the corresponding island entry lane 2 according to the required exit direction, then drives into the roundabout in a clockwise direction, and finally leaves the roundabout from the island exit lane 3 of the driving road 1 corresponding to the exit direction. If the vehicle needs to turn right to the adjacent driving road 1, it directly drives into the rightmost island entry lane 2; when entering the roundabout, whether turning left or right, the vehicle must give way to other vehicles driving in the roundabout. When exiting the roundabout, the right-turning vehicle must give way to other vehicles exiting the roundabout.

[0047] The following are the traffic rules of traffic lights: Figure 2As shown, at the roundabout of any driving road, there are a pedestrian and non-motorized vehicle lane 5 across the roundabout, a lane 6 located on the right side of the roundabout and continuing to go straight in the roundabout, a lane 7 located on the right side of the roundabout and about to leave the roundabout to the left, and a pedestrian and non-motorized vehicle lane 8 across the intersection.

[0048] Phase 1: No. 2 island access lane enters the island, and No. 5 pedestrian lane and non-motorized vehicle lane are open;

[0049] Phase 2: Lane 6 goes straight in the roundabout, Lane 7 turns left to leave the roundabout, and Lane 8 pedestrian and non-motorized vehicle lanes are open;

[0050] Green wave: When the No. 2 entry lane and the island through lane drive to the right side of the No. 5 sidewalk, the first phase ends and the second phase begins, thus ensuring uninterrupted traffic flow.

[0051] This traffic light rule is more efficient when the traffic flow in each direction of the intersection is balanced.

[0052] In summary, this solution can effectively reduce the driving interference phenomenon caused by different entrances and exits of vehicles in the roundabout, and improve the traffic efficiency of the roundabout.

[0053] Although a portion of the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations to these embodiments are within the scope of protection of the claims of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A clockwise roundabout traffic diversion system, characterized in that: Includes center island and driving road; There are n driving roads arranged radially around the central island, each of which is a two-way road, with the left side being the direction of leaving the island and the right side being the direction of entering the island, and each of which includes n-1 lanes for entering the island and n-2 lanes for leaving the island; In all lanes approaching the island on any road of travel: The rightmost lane for entering the island is connected to the leftmost lane for exiting the island in another adjacent driving road on the right through a transition lane running in a counterclockwise direction; The remaining n-2 island-entry lanes are numbered in order from left to right, the remaining n-2 driving roads are numbered in a clockwise direction, and the n-2 island-exit lanes in each driving road are numbered in order from right to left. Each island-entry lane is connected to the corresponding numbered island-exit lane in the corresponding numbered driving road through a transition road running in a clockwise direction; All transition roads are set around the center island and are interwoven in the following manner: at the roundabout of any driving road, Ai is defined as the i-th lane entering the island, sorted from the right shoulder to the center of the road, Bi is defined as the i-th lane leaving the island, sorted from the center of the road to the left shoulder, Ci is defined as the i-th lane from the outside of the roundabout to the inside of the roundabout, and Di is defined as the i-th lane on the left side of the intersection, sorted from the outside of the roundabout to the inside of the roundabout; Then in the weaving mode of the n-way roundabout, in addition to A1 connecting C1 and D1 connecting B n-2 outside, A k even C2 to Cn -1 C k Lian B k-1 , Cn to In and Connection, where To round up.

2. The method for passing through the clockwise roundabout traffic diversion system according to claim 1, characterized in that: The method of passage is as follows: S1. When the vehicle is driving on the driving road, it should select the corresponding island entry lane according to the required exit direction, then drive into the roundabout in a clockwise direction, and finally leave the roundabout from the island exit lane of the driving road corresponding to the exit direction. If the vehicle needs to turn right to the adjacent driving road, it should directly drive into the rightmost island entry lane; S2. When a vehicle enters a roundabout, whether turning left or right, it must give way to other vehicles driving in the roundabout; S3. When vehicles exit a roundabout, vehicles turning right must give way to other vehicles exiting the roundabout.

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