CN104313964A - Designing scheme of polygonal T-shaped rotary intersection - Google Patents
Designing scheme of polygonal T-shaped rotary intersection Download PDFInfo
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- CN104313964A CN104313964A CN201410571786.2A CN201410571786A CN104313964A CN 104313964 A CN104313964 A CN 104313964A CN 201410571786 A CN201410571786 A CN 201410571786A CN 104313964 A CN104313964 A CN 104313964A
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- traffic
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- rotary island
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/02—Crossings, junctions or interconnections between roads on the same level
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C1/00—Design or layout of roads, e.g. for noise abatement, for gas absorption
- E01C1/002—Design or lay-out of roads, e.g. street systems, cross-sections ; Design for noise abatement, e.g. sunken road
Abstract
The invention discloses a designing scheme of a polygonal T-shaped rotary intersection and particularly discloses a traffic organization design and traffic control method for improving the traffic capacity of the rotary intersection, reducing the intersected road delay and also improving the safety of pedestrians and non-motorized vehicles crossing streets, belonging to the fields of traffic design and traffic control. The method is improved on the basis of the traditional rotary intersection; the frequency of going straight on a main road is increased, and the priority for going straight on the main road is given, so that the delay time of the main road in a rotary island is shortened; and meanwhile the main road and the rotary island are additionally provided with signal lamps and are controlled by using two-phase signals, and a plurality of signal lamp control points are joint-controlled, so that the green wave traffic is realized, the delay time on the main road is shortened, and the traffic capacity of the rotary intersection is improved. The traditional round rotary island is improved and adjusted to be polygonal, and the shape can be favorably changed according to the topographical condition, so that the polygonal T-shaped rotary intersection is strong in adaptability.
Description
Technical field
The present invention relates to a kind of traffic organization and the canalization method that improve Traffic Capacity at Intersections of Urban Roads, belong to traffic design and field of traffic control.
Background technology
Along with the development in city, urban road network density is increasing, and people to the demand of traffic also in continuous increase, urban road construction can not meet the demand of people, so seem particularly important to the organization and administration of road network.In city road network, the crossover node place bottleneck that traffic is current often, be the main point causing traffic delay, especially for traffic circle, the traffic capacity is limited.According to statistics, in city road network, vehicle accounts for 30% of all times in the delay time at stop of crossing.Traffic due to crossing's all directions needs to produce a large amount of conflict such as interflow, shunting, intersection, make intersection become accident multiplely, the traffic accident on urban road has 60% to be occur in crossing.Therefore, how correct design, the traffic at tissue cross mouth place ensure urban traffic safety and unobstructed key.Traditional planar annular intersection belongs to the intersection controlling voluntarily to pass through, or continuously or wait for an opportunity the vehicle of craspedodrome and left-hand rotation that circuit intertexture track neutral enters intersection and all do to travel counterclockwise around central island, intersection is sailed out of after being interweaved, and right-turning vehicles Turning travel on dedicated Lanes on the right side of changing.Be suitable in bicycle interference few, adopt when the little city subsidiary road of the traffic volume is crossing with subsidiary road.Therefore, for traditional planar annular intersection, its traffic capacity is lower, and its suitable craspedodrome, left-hand rotation total wheel traffic are within 3000pcu/h.Balanced addressing this problem is carried out by analyzing, innovating, integrate the Traffic Organization proposing a kind of novel traffic circle.
Summary of the invention
This Traffic Organization is optimized on the basis of traditional endless intersection scheme, not only meets transport need but also improve intersection capacity.Concrete design scheme follows following principle: (1) preferential main road is kept straight on.There is provided convenient condition to the craspedodrome wagon flow in main road direction, reduce the distance that detours that main road is kept straight on, reduce and incur loss through delay, improve the traffic capacity of whole traffic circle.(2) two phase place green wave traffic.Tradition rotary island control mode is divided into two kinds: a kind of is self adaptation ring cross-channel mouth; One is lamp control formula traffic circle.Compared with traditional lamp control formula, this programme signal controls to adopt two phase place, and reduce cycle time, delay, this scheme is two phase place at Signalized control place, is easy to realize " green ripple " cooperation control.(3) street safety crossed by raising pedestrian and bicycle.Pedestrian crossing is combined with motorway signal lamp, arranges special pedestrian crossing signal lamp and improves safety, meanwhile, arranges provide pedestrian's street crossing to stop district according to canalization, increased street chance and crossed street number of times, and improving pedestrian capacity and safety.(4) the rotary island turnover traffic volume is controlled.For the situation that the annular traffic capacity is limited, be separated by main road is kept straight on, reduce the traffic volume entering rotary island, thus control the traffic volume in rotary island, improve the traffic capacity of whole traffic circle.Design scheme, by being separated main road through-traffic stream, reduces the traffic volume entering rotary island, thus improves the traffic capacity of intersection, meanwhile, utilizes " green ripple " traffic to reduce stop frequency and traffic delay.This scheme is compared with traditional traffic circle, and what namely improve pedestrian crosses street safety, greatly improves again the traffic capacity of intersection.
Accompanying drawing explanation
Fig. 1: polygon T-shaped circuit level-crossing design scheme (type A); Fig. 2: type A traffic organization and phase diagram; Fig. 3: polygon T-shaped circuit level-crossing design scheme (type B); Fig. 4: type B traffic organization and phase diagram; Fig. 5: polygon T-shaped circuit level-crossing design scheme (Type C); Fig. 6: Type C traffic organization and phase diagram; Fig. 7: polygon T-shaped circuit level-crossing design scheme (type D); Fig. 8: type D traffic organization and phase diagram; Fig. 9: polygon T-shaped circuit level-crossing design scheme (type E); Figure 10: type E traffic organization and phase diagram; Figure 11: polygon T-shaped circuit level-crossing design scheme (type F); Figure 12: type F traffic organization and phase diagram; Figure 13: polygon T-shaped circuit level-crossing design scheme (type G); Figure 14: type G traffic organization and phase diagram.
Detailed description of the invention
Be described in detail according to different design schemes below:
1, scheme traffic organization is analyzed: type A:scheme as shown in Figure 1, traditional " planar annular intersection " basis is improved, and increases main road and keeps straight on, and to main road craspedodrome priority, improve the traffic capacity of main road, secondary road and rotary island adopt the traffic organization method of right-in and right-out by arranging canalization island.Meanwhile, reduce the traffic volume in rotary island, improve the traffic capacity of whole intersection, traditional circular rotary island is improved, is adjusted to polygon, be conducive to changing shape, strong adaptability according to topographic features.Traffic Organization as shown in Figure 2, after main road increases craspedodrome, keep straight on and can directly pass through, and the left/right rotation traffic volume enters rotary island, and secondary road all enters roundabout ahead by main road.The control form (autocontrol traffic circle, lamp control formula traffic circle) of former traffic circle is combined, signal lamp is set up at main road and rotary island place, and adopt Two-phases signal to control, 2 place's Signalized control points are carried out joint control, realize green wave traffic, to reduce the delay of main road, improve the traffic capacity.Condition on probation: the program is applicable to primary and secondary road and intersects, and main road is based on the intersection of straight-going traffic amount.Polygonal shape can adjust according to topographic features.
type B:scheme as shown in Figure 3, traditional " planar annular intersection " basis is improved, and increases and intersects main road craspedodrome, to main road craspedodrome priority, improves the traffic capacity of main road, meanwhile, reduces the traffic volume in rotary island, improves the traffic capacity of whole intersection.Traditional circular rotary island is improved, is adjusted to polygon, be conducive to changing shape, strong adaptability according to topographic features.The program, on the basis of type A, widens track, increases special right-hand rotation turnover track, reduces the queuing of turning right and incurs loss through delay, improve the operational efficiency of intersection.Traffic Organization as shown in Figure 4, after main road increases craspedodrome, keep straight on and can directly pass through, and the left/right rotation traffic volume enters rotary island, and secondary road all enters roundabout ahead by main road.The control form (autocontrol traffic circle, lamp control formula traffic circle) of former traffic circle is combined, signal lamp is set up at main road and rotary island place, and adopt Two-phases signal to control, 2 place's Signalized control points are carried out joint control, realize green wave traffic, to reduce the delay of main road, improve the traffic capacity.Condition on probation: the program is applicable to primary and secondary road and intersects, the intersection that right-turn volume is relatively large.
type C:as shown in Figure 5, the program, on the basis of type B, will be separated into two one-way streets by dealings to scheme, adopt Two-phases signal lamp crossing with main road controls, and 2 place's Signalized control points is carried out joint control, realizes green wave traffic, to reduce the delay of main road, improve the traffic capacity.Traffic Organization as shown in Figure 6, is separated into two one-way streets by dealings, enters main road and adopts right-in and right-out, go out main road and adopt Signalized control, and adopt Two-phases signal to control, 2 place's Signalized control points are carried out joint control, realize green wave traffic, to reduce the delay of main road, improve the traffic capacity.Condition on probation: the program is applicable to primary and secondary road and intersects is that one-way street or turnover interval, track are larger by dealings.
type D:scheme as shown in Figure 7, traditional " planar annular intersection " basis is improved, and increases main road and keeps straight on, and to main road craspedodrome priority, improve the traffic capacity of main road, secondary road and rotary island adopt the traffic organization method of right-in and right-out by arranging canalization island.Meanwhile, reduce the traffic volume in rotary island, improve the traffic capacity of whole intersection.Traditional traffic circle is adjusted to recessed quadrangle, and rotary island traffic organization method realizes by turning around, and is more conducive to adaptation to the ground, and especially particularly applicable when land used anxiety, namely this programme achieves the traffic organization form of rotary island, again saves land used.Traffic Organization as shown in Figure 8, after main road increases craspedodrome, keep straight on and can directly pass through, and the left/right rotation traffic volume enters matrix rotary island, and secondary road all enters roundabout ahead by main road.Traffic organization form class is similar to the form that bypass turns around, and secondary road is kept straight on and turned left to enter auxiliary road by turning right, and then enters by dealings by turning around.The control form (autocontrol traffic circle, lamp control formula traffic circle) of former traffic circle is combined, signal lamp is set up at main road and spill rotary island place, and adopt Two-phases signal to control, 2 place's Signalized control points are carried out joint control, realize green wave traffic, to reduce the delay of main road, improve the traffic capacity.Condition on probation: the program is applicable to primary and secondary road and intersects, main road based on the intersection of straight-going traffic amount, while landform critical constraints.
type E:scheme as shown in Figure 9, traditional " planar annular intersection " basis is improved, and increases main road and keeps straight on, and to main road craspedodrome priority, improve the traffic capacity of main road, secondary road and rotary island adopt the traffic organization method of right-in and right-out by arranging canalization island.Meanwhile, reduce the traffic volume in rotary island, improve the traffic capacity of whole intersection.Compressed traditional traffic circle, rotary island traffic organization method realizes by turning around, and is more conducive to adaptation to the ground, especially particularly applicable when land used anxiety.The program, on the basis of type D, arranges dedicated Lanes by track dislocation, " fish maw skin ", reduces and interweave, improve traffic safety.Traffic Organization as shown in Figure 10, after main road increases craspedodrome, keep straight on and can directly pass through, and the left/right rotation traffic volume enters matrix rotary island, and secondary road all enters roundabout ahead by main road.Traffic organization form class is similar to the form that bypass turns around, and secondary road is kept straight on and turned left to enter auxiliary road by turning right, and then enters by dealings by turning around.The control form (autocontrol traffic circle, lamp control formula traffic circle) of former traffic circle is combined, signal lamp is set up at main road and spill rotary island place, and adopt Two-phases signal to control, 2 place's Signalized control points are carried out joint control, realize green wave traffic, to reduce the delay of main road, improve the traffic capacity.Condition on probation: the program is applicable to primary and secondary road and intersects, the intersection that right-turn volume is relatively large.
type F:scheme as shown in figure 11, traditional " planar annular intersection " basis is improved, and increases main road and keeps straight on, and to main road craspedodrome priority, improve the traffic capacity of main road, secondary road and rotary island adopt the traffic organization method of right-in and right-out by arranging canalization island.Meanwhile, reduce the traffic volume in rotary island, improve the traffic capacity of whole intersection.Compressed traditional traffic circle, rotary island traffic organization method realizes by turning around, and is more conducive to adaptation to the ground, especially particularly applicable when land used anxiety.The program is on the basis of type E, and main road arranges special right-hand rotation turnover track by increasing track, specifies right of way, improves the traffic capacity.Traffic Organization as shown in figure 12, after main road increases craspedodrome, keep straight on and can directly pass through, and the left/right rotation traffic volume enters matrix rotary island, and secondary road all enters roundabout ahead by main road.Traffic organization form class is similar to the form that bypass turns around, and secondary road is kept straight on and turned left to enter auxiliary road by turning right, and then enters by dealings by turning around.The control form (autocontrol traffic circle, lamp control formula traffic circle) of former traffic circle is combined, signal lamp is set up at main road and spill rotary island place, and adopt Two-phases signal to control, 2 place's Signalized control points are carried out joint control, realize green wave traffic, to reduce the delay of main road, improve the traffic capacity.Condition on probation: the program is applicable to primary and secondary road and intersects, based on the intersection of straight-going traffic amount.
type G:scheme as shown in figure 13, traditional " planar annular intersection " basis is improved, and increases main road and keeps straight on, and to main road craspedodrome priority, improve the traffic capacity of main road, secondary road and rotary island adopt the traffic organization method of right-in and right-out by arranging canalization island.Meanwhile, reduce the traffic volume in rotary island, improve the traffic capacity of whole intersection.Compressed traditional traffic circle, rotary island traffic organization method realizes by turning around, and is more conducive to adaptation to the ground, especially particularly applicable when land used anxiety.The program on the basis of type F, by increase " fish maw skin " special turn lane.Traffic Organization as shown in figure 14, after main road increases craspedodrome, keep straight on and can directly pass through, and the left/right rotation traffic volume enters matrix rotary island, and secondary road all enters roundabout ahead by main road.Traffic organization form class is similar to the form that bypass turns around, and secondary road is kept straight on and turned left to enter auxiliary road by turning right, and then enters by dealings by turning around.The control form (autocontrol traffic circle, lamp control formula traffic circle) of former traffic circle is combined, signal lamp is set up at main road and spill rotary island place, and adopt Two-phases signal to control, 2 place's Signalized control points are carried out joint control, realize green wave traffic, to reduce the delay of main road, improve the traffic capacity.Condition on probation: it is crossing with main road that the program is applicable to main road, and main road left-turn volume is relatively large.
2, geometry designs:polygon rotary island turning radius will be arranged according to the design speed of rotary island, 0.5 times of rotary island design speed desirable section design speed, and the general value of rotary island inside lane width is 4.0 ~ 5.0 meters.Rotary island weaving section length is according to rotary island design speed value, and concrete value is with reference to specification.
3, Signalized control:main road and rotary island place set up signal lamp, and adopt Two-phases signal to control, and Signalized control point in many places is carried out joint control, realizes green wave traffic, to reduce the delay of main road, improve the traffic capacity.
4, pedestrian traffic tissue:pedestrian traffic tissue to enable pedestrian fast and safely pass through intersection.Arrange crosswalk in place, Neng Shiguo street distance is the shortest is conducive to pedestrains safety.Cross walk is positioned at rotary island and road intersection point of intersection, be combined with motorway signal lamp, special pedestrian crossing signal lamp is set and improves safety, because motorway is two phase place, pedestrian needs crossing street twice to pass through road, need arrange pedestrian secondary and cross canalization island, street, the program can increase pedestrian's street crossing chance and number of times, improves pedestrian's street crossing safety simultaneously.
5, traffic safety facilities design:due to this scheme and traditional traffic circle different, affect driver custom, need to carry out detailed design to the design of the traffic safety facilities of intersection, traffic safety facilities direct drivers is correctly driven, ensures traffic safety.Such as, guiding and Warning Mark is used to pass on direction, track in advance; Speed(-)limit sign is used to ensure the comfortable and safe of driving; Use traffic prohibited sign, help driver and reduce error probability; Adjacent lane be subtend pass through time, guardrail is set and improves subtend traffic safety etc.
Claims (2)
1. one kind is improved Traffic Capacity of Round Crossing and reduces road intersection delay, Transcation agent and the traffic control method of street safety crossed by raising pedestrian and bicycle simultaneously, it is characterized by: increase and intersect main road craspedodrome, to main road craspedodrome priority, improve the traffic capacity of main road; Simultaneously, main road and rotary island place are set up signal lamp, and adopt Two-phases signal to control, Signalized control point in many places is carried out joint control, realizes green wave traffic, utilize green wave traffic to reduce stop frequency and traffic delay, traditional circular rotary island improves by rotary island in shape, be adjusted to polygon, be conducive to changing shape, strong adaptability according to topographic features.
2. intersection traffic organization design scheme according to claim 1, traditional traffic circle is it is characterized in that to improve, increase main road to keep straight on, signal control form is adjusted to two phase place simultaneously, coordinated signals is carried out at all signal control points, realize green wave traffic, traditional circular rotary island is improved, be adjusted to polygon, be conducive to changing shape according to topographic features, simultaneously, improve pedestrian's street crossing safety and cross street number of times, this programme is compared with traditional traffic circle, what namely improve pedestrian crosses street safety, greatly improve again the traffic capacity of intersection.
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| CN201410571786.2A CN104313964A (en) | 2014-10-24 | 2014-10-24 | Designing scheme of polygonal T-shaped rotary intersection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486975A (en) * | 2018-04-11 | 2018-09-04 | 武汉理工大学 | A kind of traffic organization method for eliminating Y shape intersection conflict point |
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| JP2992498B2 (en) * | 1996-10-11 | 1999-12-20 | 交通環境研究院 | Two-way three-way intersection and its signal control method |
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| CN1661162A (en) * | 2004-02-25 | 2005-08-31 | 刘俊 | Orientated type assembled road and bridge at crossroad of pavement |
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| CN108486975A (en) * | 2018-04-11 | 2018-09-04 | 武汉理工大学 | A kind of traffic organization method for eliminating Y shape intersection conflict point |
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