CN104328721A - Design plan of quadrangle double ring plane cross-shaped intersection - Google Patents
Design plan of quadrangle double ring plane cross-shaped intersection Download PDFInfo
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- CN104328721A CN104328721A CN201410489165.XA CN201410489165A CN104328721A CN 104328721 A CN104328721 A CN 104328721A CN 201410489165 A CN201410489165 A CN 201410489165A CN 104328721 A CN104328721 A CN 104328721A
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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
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Abstract
The invention discloses a design plan of a quadrangle double ring plane cross-shaped intersection. The quadrangle double ring plane cross-shaped intersection is improved on the basis of a traditional ring plane intersection, rotary island lanes comprises inner and outer ring lanes, wherein the inner ring lanes are straight-going lanes and left turning lanes, and the outer ring lanes are right-turning special lanes; when cars enters a rotary island, the cars enter the inner ring lanes by control of signal lamps; a traffic flow driving away from the rotary island enters the outer ring lanes, by the signal lamps, and further drives away from the rotary island. According the design plan, the traditional random crossing characteristics of the rotary island can be avoided, by physical separation segmentation of the inner and outer rotary island lanes and by use of the signal lamps for fixing crossing points, crossing in the rotary island can be greatly reduced, and the rotary island intersection traffic capacity can be increased. The shape of the round rotary island is adjusted into a polygon, and the probation conditions are more flexible. The signal control uses two phases, signal lamp control points are integratedly controlled, and a two- in two-out traffic control form is used. The idea is also applied to multiple crossing.
Description
Technical field
The present invention relates to a kind of traffic organization and the canalization method that improve capacity of roundabouts in city roads during peak period, 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, both improves intersection capacity, turn improves pedestrian's street crossing safety.Concrete design scheme follows following principle: (1) reduces intertwined point in rotary island.By the traffic volume of turnover rotary island is separated, intertwined point is fixed simultaneously, reduce the interweaving machine meeting in rotary island.The intertwined point of turnover rotary island is arranged at intersection, is namely conducive to the traffic volume controlling turnover in rotary island, meanwhile, adds the weaving length in rotary island.(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, solves pedestrian and enters central island problem, make central island regain life according to canalization setting.(4) innovation of rotary island shape.Changed by traditional circular rotary island, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, and the length of side can increase and can subtract, and when rotary island function is constant, condition on probation is more flexible, and application surface is wider.The traffic flow of turnover rotary island is used physical separation by design scheme, decreases the intertexture of traffic flow; The intertwined point of turnover rotary island traffic flow is fixed, and adopts Two-phases signal to control, combine with pedestrian crossing, namely improve the traffic capacity in rotary island, turn improve pedestrian's street crossing safety.Meanwhile, " green ripple " traffic is utilized to reduce stop frequency and traffic delay.This scheme, compared with traditional traffic circle, had both solved pedestrian's street crossing safety problem, made central island regain life, greatly improved again the traffic capacity of intersection, meanwhile, by the change of shape, made the applicability of rotary island wider, applied more flexible.
four, accompanying drawing explanation
Fig. 1: quadrangle dicyclo At-grade intersection design scheme (type A)
Fig. 2: type A traffic organization and phase diagram
Fig. 3: quadrangle dicyclo At-grade intersection design scheme (type B)
Fig. 4: type B traffic organization and phase diagram
Fig. 5: quadrangle dicyclo At-grade intersection design scheme (Type C)
Fig. 6: Type C traffic organization and phase diagram
Fig. 7: quadrangle dicyclo At-grade intersection design scheme (type D)
Fig. 8: type D traffic organization and phase diagram
Fig. 9: quadrangle dicyclo At-grade intersection design scheme (type E)
Figure 10: type E traffic organization and phase diagram
Figure 11: quadrangle dicyclo At-grade intersection design scheme (type F)
Figure 12: type F traffic organization and phase diagram
Figure 13: quadrangle dicyclo At-grade intersection design scheme (type G)
Figure 14: quadrangle dicyclo At-grade intersection design scheme (type H)
Figure 15: type H traffic organization and phase diagram
five, 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, rotary island track in traditional sense is divided into inner ring track and outer shroud track: inner ring track is for using around ring vehicle, and outer shroud track is right-hand rotation dedicated Lanes.For each entrance driveway craspedodrome and turn left in advance by changing traffic organization, enter right-hand rotation dedicated Lanes and then complete and keep straight on and turn left, increase the traffic capacity in rotary island, improve the traffic capacity of whole intersection.In shape, changed by traditional circular rotary island, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, and the length of side can increase and can subtract, and when rotary island function is constant, condition on probation is more flexible, and application surface is wider.Intertwined point by the inside and outside rotary island of physical separation segmentation, and is fixed by signal lamp by the program, greatly reduces the intertexture in rotary island, increases the traffic capacity in rotary island, improve the traffic capacity of whole intersection.Rotary island track misplaces by the program, and ensure the direct lane alignment of signal lamp place, avoid mistake of driving a vehicle, improve traffic safety, meet driving habits, rotary island inner ring track and outer shroud track proportioning were preferably in outer being greater than.The control form of former lamp control formula traffic circle is improved, sets up signal lamp at main road and rotary island place, and adopt Two-phases signal to control, 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.Condition on probation: the program is applicable to the intersection that the traffic volume is comparatively large, category of intersection roads is higher, orographic condition is limited.
type B:scheme as shown in Figure 3, traditional " planar annular intersection " basis is improved, rotary island track in traditional sense is divided into inner ring track and outer shroud track: inner ring track is for using around ring vehicle, and outer shroud track is right-hand rotation dedicated Lanes.For each entrance driveway craspedodrome and turn left in advance by changing traffic organization, enter right-hand rotation dedicated Lanes and then complete and keep straight on and turn left, increase the traffic capacity in rotary island, improve the traffic capacity of whole intersection.In shape, changed by traditional circular rotary island, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, and the length of side can increase and can subtract, and when rotary island function is constant, condition on probation is more flexible, and application surface is wider.Rotary island, on the basis of type A, turns left to arrange left turn lane by arranging after intersection exit before left turn lane is adjusted to crossing inlet by the program.The control form of former lamp control formula traffic circle is improved, sets up signal lamp at main road and rotary island place, and adopt Two-phases signal to control, 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.Condition on probation: the program is applicable to the intersection that the traffic volume is comparatively large, category of intersection roads is higher, orographic condition is limited.
type C:scheme as shown in Figure 5, traditional " planar annular intersection " basis is improved, rotary island track in traditional sense is divided into inner ring track and outer shroud track: inner ring track is for keeping straight on and left turn lane, and outer shroud track is right-hand rotation dedicated Lanes.By Signalized control, inner ring track is entered when entering rotary island for the wagon flow entering rotary island; By Signalized control, outer track is entered equally for the wagon flow rolling rotary island away from, and then rolls rotary island track away from.The characteristic that traditional rotary island arbitrarily interweaves is evaded by the program, by using the inside and outside rotary island of physical separation segmentation, and intertwined point being fixed by signal lamp, greatly reducing the intertexture in rotary island, increase the traffic capacity in rotary island, improve the traffic capacity of whole intersection.In shape, changed by traditional circular rotary island, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, and the length of side can increase and can subtract, and when rotary island function is constant, condition on probation is more flexible, and application surface is wider.Scheme on the basis of type B, for ensureing that Signalized control point place direct lane misplaces by the positive circle of rotary island.The control form (autocontrol traffic circle, lamp control formula traffic circle) of former traffic circle is combined, signal lamp is set up at road intersection and rotary island place, and adopt Two-phases signal to control, joint control will be carried out by Signalized control point everywhere, the traffic control form of scene 2 is entered in employing two, improves the rotary island traffic capacity.Condition on probation: after improving, scheme is applicable to the intersection that the traffic volume is comparatively large, orographic condition is limited.
type D:scheme as shown in Figure 7, traditional " planar annular intersection " basis is improved, rotary island track in traditional sense is divided into inner ring track and outer shroud track: inner ring track is for keeping straight on and left turn lane, and outer shroud track is right-hand rotation dedicated Lanes.By Signalized control, inner ring track is entered when entering rotary island for the wagon flow entering rotary island; By Signalized control, outer track is entered equally for the wagon flow rolling rotary island away from, and then rolls rotary island away from.The characteristic that traditional rotary island arbitrarily interweaves is evaded by the program, by using the inside and outside rotary island of physical separation segmentation, and intertwined point being fixed by signal lamp, greatly reducing the intertexture in rotary island, increase the traffic capacity in rotary island, improve the traffic capacity of whole intersection.In shape, changed by traditional circular rotary island, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, and the length of side can increase and can subtract, and when rotary island function is constant, condition on probation is more flexible, and application surface is wider.Signal lamp import compression median strip, on the basis of Type C, is widened track, is improved intersection capacity by the program.The number of track-lines rolling rotary island away from is increased, will roll away to be greater than and sail into, reduce the traffic volume in rotary island, improve the traffic capacity of rotary island.The control form (autocontrol traffic circle, lamp control formula traffic circle) of former traffic circle is combined, signal lamp is set up at road intersection and rotary island place, and adopt Two-phases signal to control, joint control will be carried out by Signalized control point everywhere, the traffic control form of scene 2 is entered in employing two, improves the rotary island traffic capacity.Condition on probation: the program is applicable to the intersection that the traffic volume is comparatively large, straight-going traffic amount large percentage, orographic condition are limited.
type E:scheme as shown in Figure 9, traditional " planar annular intersection " basis is improved, rotary island track in traditional sense is divided into inner ring track and outer shroud track: inner ring track is for keeping straight on and left turn lane, and outer shroud track is right-hand rotation dedicated Lanes.By Signalized control, inner ring track is entered when entering rotary island for the wagon flow entering rotary island; By Signalized control, outer track is entered equally for the wagon flow rolling rotary island away from, and then rolls rotary island away from.The characteristic that traditional rotary island arbitrarily interweaves is evaded by the program, by using the inside and outside rotary island of physical separation segmentation, and intertwined point being fixed by signal lamp, greatly reducing the intertexture in rotary island, increase the traffic capacity in rotary island, improve the traffic capacity of whole intersection.In shape, changed by traditional circular rotary island, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, and the length of side can increase and can subtract, and when rotary island function is constant, condition on probation is more flexible, and application surface is wider.Road intersection, on the basis of type D, is passed in and out stomatodeum and widens by the program, and meanwhile, increase rotary island inner ring and outer shroud number of track-lines, match with section, signal lamp queuing number of track-lines increases to two, improves the traffic capacity.The control form (autocontrol traffic circle, lamp control formula traffic circle) of former traffic circle is combined, signal lamp is set up at road intersection and rotary island place, and adopt Two-phases signal to control, joint control will be carried out by Signalized control point everywhere, the traffic control form of scene 2 is entered in employing two, improves the rotary island traffic capacity.Condition on probation: the program is applicable to the intersection that the traffic volume is comparatively large, category of intersection roads is higher, orographic condition is limited.
type F:scheme as shown in figure 11, traditional " planar annular intersection " basis is improved, rotary island track in traditional sense is divided into inner ring track and outer shroud track: inner ring track is for using around ring vehicle, and outer shroud track is right-hand rotation dedicated Lanes.For each entrance driveway craspedodrome and turn left in advance by changing traffic organization, enter right-hand rotation dedicated Lanes and then complete and keep straight on and turn left, increase the traffic capacity in rotary island, improve the traffic capacity of whole intersection.In shape, changed by traditional circular rotary island, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, and the length of side can increase and can subtract, and when rotary island function is constant, condition on probation is more flexible, and application surface is wider.The program, on the basis of type E, by the interior left-turn traffic flow that turns by Signalized control, directly enters the outer track of inner ring, reduces inner ring and interweave, improve the traffic capacity in inner ring track.The control form of former lamp control formula traffic circle is improved, sets up signal lamp at main road and rotary island place, and adopt Two-phases signal to control, 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.Condition on probation: the program is applicable to the intersection that the traffic volume is comparatively large, category of intersection roads is higher, orographic condition is limited.
type G:scheme as shown in figure 13, traditional " planar annular intersection " basis is improved, rotary island track in traditional sense is divided into inner ring track and outer shroud track: inner ring track is for using around ring vehicle, and outer shroud track is right-hand rotation dedicated Lanes.For each entrance driveway craspedodrome and turn left in advance by changing traffic organization, enter right-hand rotation dedicated Lanes and then complete and keep straight on and turn left, increase the traffic capacity in rotary island, improve the traffic capacity of whole intersection.In shape, changed by traditional circular rotary island, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, and the length of side can increase and can subtract, and when rotary island function is constant, condition on probation is more flexible, and application surface is wider.The program is on the basis of above type, increase the number at rotary island phase dealings, when rotary island road intersection number is 6, the applicability of a rotary island is poor, and weaving section is short, otherwise the radius requirement of rotary island is larger, take up an area comparatively large, this programme proposes on this basis and six tunnels intersections is separated, and is divided into two rotary islands, each rotary island three road intersections, still meet the traffic organization thinking that rotary island changes.The control form of former lamp control formula traffic circle is improved, sets up signal lamp at main road and rotary island place, and adopt Two-phases signal to control, 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.Condition on probation: the program is applicable to the intersection that the traffic volume is comparatively large, category of intersection roads is higher, orographic condition is limited.
type H:scheme as shown in figure 14, traditional " planar annular intersection " basis is improved, rotary island track in traditional sense is divided into inner ring track and outer shroud track: inner ring track is for using around ring vehicle, and outer shroud track is right-hand rotation dedicated Lanes.For each entrance driveway craspedodrome and turn left in advance by changing traffic organization, enter right-hand rotation dedicated Lanes and then complete and keep straight on and turn left, increase the traffic capacity in rotary island, improve the traffic capacity of whole intersection.In shape, changed by traditional circular rotary island, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, and the length of side can increase and can subtract, and when rotary island function is constant, condition on probation is more flexible, and application surface is wider.Quadrangle, on the basis of type F, compresses by the program, and rotary island traffic organization method realizes by turning around, more be conducive to adaptation to the ground, especially particularly applicable when land used anxiety, namely this programme achieves the traffic organization form of rotary island, again saves land used.The control form of former lamp control formula traffic circle is improved, sets up signal lamp at main road and rotary island place, and adopt Two-phases signal to control, 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.Condition on probation: the program is applicable to the intersection that the traffic volume is comparatively large, category of intersection roads is higher, orographic condition is limited.
2, geometry designs:quadrangle 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 controlmain road and rotary island change Dao Chu and 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, reduce and incur loss through delay, and 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.And by canalization setting position, cross walk is rationally set and makes rotary island periphery pedestrian enter central island, make central island regain life.
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, belong to traffic design and field of traffic control, the method is improved on traditional " planar annular intersection " basis, the characteristic that traditional rotary island arbitrarily interweaves is evaded by the program, by using the inside and outside rotary island track of physical separation segmentation, and intertwined point is fixed by signal lamp, greatly reduce the intertexture in rotary island, increase the traffic capacity in rotary island, improve the traffic capacity of whole intersection, signal lamp is set up at road intersection and rotary island place, and adopt Two-phases signal to control, joint control will be carried out by Signalized control point everywhere, the traffic control form of scene 2 is entered in employing two, improve the rotary island traffic capacity, in shape, traditional circular rotary island is changed, be adjusted to quadrangle, quadrangle is conducive to changing shape according to topographic features, the length of side can increase and can subtract, when rotary island function is constant, condition on probation is more flexible, application surface is wider.
2. intersection traffic organization design scheme according to claim 1, traditional traffic circle is it is characterized in that to improve, physical separation is adopted rotary island traffic flow to be separated, use intersection to change principle the intertwined point of rotary island is fixed, and use the turnover of the Signalized control rotary island traffic volume, greatly reduce the intertexture in rotary island, be applicable to the traffic circle of four tunnels and above intersection, quadrangle form can change shape according to topographic features, the length of side can increase and can subtract, also can compress, rotary island traffic organization method realizes by turning around, before rotary island left-turn traffic flow is separated and can be arranged on crossing inlet or after intersection exit, inner and outer ring number of track-lines coupling can be arranged according to actual traffic stream ratio, signal timing dial combines with sidewalk, the joint control scheme of scene 2 is entered in easy employing two, quadrangle form can adjust according to topographic features, more circular rotary island applicability is stronger.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104452505A (en) * | 2014-11-04 | 2015-03-25 | 吴小平 | Clockwise double-ring plane intersection designing scheme |
| CN111829540A (en) * | 2020-06-04 | 2020-10-27 | 北京百度网讯科技有限公司 | Driving track generation method and device, electronic equipment and storage medium |
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| US20020076276A1 (en) * | 2000-12-15 | 2002-06-20 | Troemel David Eric | Butzek-troemel roundabout or "spiralabout" |
| CN1869336A (en) * | 2005-05-25 | 2006-11-29 | 贾连海 | Road crossing |
| CN101736663A (en) * | 2009-12-11 | 2010-06-16 | 电子科技大学 | Traffic diverging system for roundabout |
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- 2014-09-23 CN CN201410489165.XA patent/CN104328721A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020076276A1 (en) * | 2000-12-15 | 2002-06-20 | Troemel David Eric | Butzek-troemel roundabout or "spiralabout" |
| CN1869336A (en) * | 2005-05-25 | 2006-11-29 | 贾连海 | Road crossing |
| CN101736663A (en) * | 2009-12-11 | 2010-06-16 | 电子科技大学 | Traffic diverging system for roundabout |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104452505A (en) * | 2014-11-04 | 2015-03-25 | 吴小平 | Clockwise double-ring plane intersection designing scheme |
| CN111829540A (en) * | 2020-06-04 | 2020-10-27 | 北京百度网讯科技有限公司 | Driving track generation method and device, electronic equipment and storage medium |
| CN111829540B (en) * | 2020-06-04 | 2022-08-02 | 北京百度网讯科技有限公司 | Driving track generation method and device, electronic equipment and storage medium |
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Application publication date: 20150204 |