CN1141446C

CN1141446C - Traffic arrangement in plane intersection

Info

Publication number: CN1141446C
Application number: CNB001282964A
Authority: CN
Inventors: 垣苏; 苏垣
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-15
Filing date: 2000-12-15
Publication date: 2004-03-10
Anticipated expiration: 2020-12-15
Also published as: CN1358902A

Abstract

The present invention relates to a traffic layout in a plane intersection of urban roads, particularly to a traffic layout in a plane intersection. The intersection is formed by four main roads by crossing; external guide islands, internal guide islands, and passing loops among the internal guide islands and the external guide islands are respectively arranged on the middle position of the four main roads adjacent to the intersection; four peripheral sides of the intersection are respectively provided with external channeling islands, internal channeling islands, and right-turn lanes of small ramps among the external channeling islands and the channeling islands and on the external sides of the external channeling islands. The present invention reduces a phenomenon that vehicle flows block at the intersection and increases the traffic safety coefficient. Simultaneously, the traffic layout investment on the intersection is greatly reduced, and the occupation area can be also properly reduced.

Description

Traffic arrangement in plane intersection

Technical field

The present invention relates to a kind of traffic arrangement in plane intersection of urban road, especially refer to plane right-angled intersection traffic arrangement.

Background technology

At present, motor vehicle on the urban traffic road and bicycle, in crowding of intersection, stop up the most serious, therefore, crossing intersection part at urban road is constantly built overpass bridge, again because overpass bridge cost height not only, and bridge floor height, access bridge is long, brings floor space excessive, in addition, overpass bridge and urban environment space are difficult for coordinating, cause city function to be degenerated or the like easily, so, a kind of grade separation flat seat appears again in the intersection, it is the plane overpass bridge, as shown in Figure 1, between the building at four angles of right-angled intersection, build four bigger ring roads, when vehicle (motor vehicle and bicycle) from south of road road A ', locate to turn right to B ' in the direction of arrows, turn right from C ' again and head direct for Lu Xi, so, reach the purpose that vehicle turns left, and the cost of grade separation flat seat is well below overpass bridge, but still comes with some shortcomings part:

1, four ring road requirements are enough wide, and quite long again, so the area that road takies is still quite big.

2, four ring roads make the quadrangle of right-angled intersection become the architectural complex of " isolated island " formula, and these building inconveniences are crossed in pedestrian's dealing, and are even unsafe, and the people in these architectural complex are subjected to noise effect also very big simultaneously.

Will be when 3, vehicle turns left around a ring road, not only stroke is longer, and wants twice by right-angled intersection, all wants the waiting signal lamp, so the time of pausing is also longer.

Summary of the invention

The purpose of this invention is to provide a kind of traffic arrangement in plane intersection, with side, right-angled intersection surrounding little ring road is set, supplying bicycle to detour turns to, and podium to be set and the track of turning around in the road that leaves cross junction, supplying motor vehicle to detour turns around, cancelled the left-hand bend of vehicle like this at the right-angled intersection place, thereby, reduce the clogging of wagon flow at right-angled intersection, improved traffic safety factor, simultaneously, reduce the traffic arrangement investment of intersection greatly, floor space also can suitably reduce.

The object of the present invention is achieved like this: a kind of traffic arrangement in plane intersection, by the crossing right-angled intersection that forms in 4 arterial highways, Directional island and interior Directional island outside on the close centre position, 4 arterial highways of right-angled intersection, being provided with respectively, and the runaround between each inside and outside Directional island; Canalization island and interior canalization island outside the next door of right-angled intersection surrounding is provided with respectively, and the right-turn lane in the little ring road between each outer canalization island and the interior canalization island and the outside, outer canalization island.

A kind of traffic arrangement in plane intersection, by the crossing right-angled intersection that forms in 4 arterial highways, Directional island and interior Directional island outside on close any two relative centre positions, arterial highway of right-angled intersection, being provided with respectively, and the runaround between each inside and outside Directional island; Canalization island and interior canalization island outside the next door of right-angled intersection surrounding is provided with respectively, and the right-turn lane in the little ring road between each outer canalization island and the interior canalization island and the outside, outer canalization island.

A kind of traffic arrangement in plane intersection, by the crossing right-angled intersection that forms in 4 arterial highways, Directional island and interior Directional island outside on the close centre position, 3 arterial highways of right-angled intersection, being provided with respectively, and the runaround between each inside and outside Directional island; Canalization island and interior canalization island outside the next door of right-angled intersection surrounding is provided with respectively, and the right-turn lane in the little ring road between each outer canalization island and the interior canalization island and the outside, outer canalization island.

The canalization island is lenticular minute surface shape and its center line parallel edge, roadside around right-angled intersection in described.

Description of drawings

Fig. 1 commonly uses grade separation flat seat layout schematic diagram.

Fig. 2 exemplary embodiments layout of the present invention schematic diagram.

1,2,3 and 4, the arterial highway among the figure:; 1a, 2a, 3a and 4a, outer Directional island; 1b, 2b, 3b and 4b, interior Directional island; Ab, runaround; 1c, 2c, 3c and 4c, outer canalization island; 1d, 2d, 3d and 4d, interior canalization island; Cd, little ring road; E, right-turn lane; 1e, 2e, 3e and 4e, dividing strip; A, motor vehicle; B, bicycle; A1, A2, and B1, the direction of arrow.

The specific embodiment

Below in conjunction with drawings and Examples the present invention is elaborated.

Present embodiment mainly is included near outer Directional island 1a, 2a, 3a and 4a being set, interior Directional island 1b, 2b, 3b and 4b, and the runaround ab between the inside and outside Directional island respectively in the middle of near 4

arterial highways

1,2,3 the right-angled intersection and 4; With canalization island 1c, 2c, 3c and 4c outside right-angled intersection is provided with respectively all around,

interior canalization island

1d, 2d, 3d and 4d, and the right-turn lane e in the little ring road cd between outer canalization island and the interior canalization island and the outside, outer canalization island, as shown in Figure 2, wherein:

Outer Directional island 1a, 2a, 3a and 4a and interior Directional island 1b, 2b, 3b and 4b are separately positioned on 4

arterial highways

1,2,3 and 4 centre positions accordingly, and outer Directional island 1a, 2a, 3a and 4a be runaround ab between Directional island 1b, 2b, 3b and the 4b position respectively and in corresponding, supplying motor vehicle to detour turns around, and the width in outer Directional island on

arterial highway

1,2,3 and 4 and highway section, interior Directional island place can suitably be widened, and (or all widen both sides, or only widen in a side), unaffected to guarantee craspedodrome and right-handed vehicle ' flow; It is recessed fan-shaped being somebody's turn to do outer Directional island 1a, 2a, 3a and 4a, and interior Directional island 1b, 2b, 3b and 4b are " heart " font.

Outer canalization island 1c, 2c, 3c and 4c and

interior canalization island

1d, 2d, 3d and 4d are separately positioned on by the right-angled intersection surrounding accordingly, and outer canalization island 1c, 2c, 3c and 4c are little ring road cd between canalization island 1d, 2d, 3d and the 4d position respectively and in corresponding, supplying bicycle to detour turns to, and formation right-turn lane e between outer canalization island 1c, 2c, 3c and 4e and the edge, corresponding roadside, a right-hand rotation of buying car in installments, and do not disturb detouring of bicycle to turn to.Should outer canalization island 1c, 2c, 3c and 4c be with chain or bar be formed by connecting straight line or camber line dividing strip by isolation seat; And

interior canalization island

1d, 2d, 3d and 4d are biconvex lens shape, and its center line is parallel to the roadside approximately along (roadside is along being 45 degree with the arterial highway); Its planar dimension is all littler than outer Directional island, interior Directional island again, takies right-angled intersection edge area with minimizing.

In addition, between each interior Directional island 1b, 2b, 3b and 4b are relative one section dividing strip 1e, 2e, 3e and 4e (genus prior art) are set still, but, the distance of its inner termination and right-angled intersection central axis is travelled to avoid hindering vehicle straight-line travelling and bicycle to detour to turn to greater than the distance of

interior canalization island

1d, 2d, 3d and 4d and right-angled intersection central axis.

The vehicle of present embodiment is through the travel route of right-angled intersection, as shown in Figure 2:

In the arterial highway 1 of motor vehicle A (pressing the right lateral rule) in right-angled intersection the south, need to turn left to drive on the arterial highway 4 in west, can be by arrow A 1 direction, turn right earlier and turn around through right-turn lane e, the runaround ab that enters arterial highway 2, then, craspedodrome is arrived in the arterial highway 4 in west by right-angled intersection; Also can keep straight on by right-angled intersection by arrow A 2 directions, the runaround ab that enters arterial highway 3 turns around, and turns right then through right-turn lane e, arrives in the arterial highway 4 in west; Make motor vehicle A be to shunt on 1, arrive on the arterial highway 4, promptly replace left-hand rotation circuit at ordinary times by above-mentioned two vehicle lines; And motor vehicle A desire arrives arterial highway 3, only needs to turn right through right-turn lane e, keep straight on then (not shown in the figures, as to belong to prior art); Motor vehicle A desire arrives arterial highway 3 again, only needs to keep straight on by right-angled intersection, and keep straight on (not shown in the figures, as to belong to prior art) therefore, cancelled motor vehicle A again at the right-angled intersection place, promptly reduce the time of motor vehicle A by right-angled intersection.

In the arterial highway 1 of bicycle B (pressing the right lateral rule) in right-angled intersection the south, need to turn left to drive on the arterial highway 4 in west, can keep straight on by arrow B 1 direction and pass through right-angled intersection, turn right then and enter little ring road cd and turn to, keep straight on once more and pass through right-angled intersection, arrive on the arterial highway, promptly replace left-hand rotation circuit at ordinary times; And the right-hand rotation of bicycle B desire arrives arterial highway 2, only needs to turn right through right-turn lane e craspedodrome then (not shown in the figures, as to belong to prior art); Bicycle B desire arrives arterial highway 3 again, only needs to keep straight on by right-angled intersection, and it is (not shown in the figures to keep straight on again, belong to prior art), therefore, also cancelled bicycle B at the right-angled intersection place, promptly reduced the time of bicycle B by right-angled intersection.

, in different

arterial highway

2,3,4, need drive to other arterial highways and get on as for motor vehicle A and bicycle B, can in like manner analogize, so do not give unnecessary details.In addition, the traffic arrangement of this grade crossing can be applied to the similar planar intersection, as X-shaped intersection, knuckle intersection or the like.

Claims

1, a kind of traffic arrangement in plane intersection, by the crossing right-angled intersection that forms in 4 arterial highways, it is characterized in that: Directional island and interior Directional island outside on the close centre position, 4 arterial highways of right-angled intersection, being provided with respectively, and the runaround between each inside and outside Directional island; Canalization island and interior canalization island outside the next door of right-angled intersection surrounding is provided with respectively, and the right-turn lane in the little ring road between each outer canalization island and the interior canalization island and the outside, outer canalization island.

2, a kind of traffic arrangement in plane intersection, by the crossing right-angled intersection that forms in 4 arterial highways, it is characterized in that: Directional island and interior Directional island outside on close any two relative centre positions, arterial highway of right-angled intersection, being provided with respectively, and the runaround between each inside and outside Directional island; Canalization island and interior canalization island outside the next door of right-angled intersection surrounding is provided with respectively, and the right-turn lane in the little ring road between each outer canalization island and the interior canalization island and the outside, outer canalization island.

3, a kind of traffic arrangement in plane intersection, by the crossing right-angled intersection that forms in 4 arterial highways, it is characterized in that: Directional island and interior Directional island outside on the close centre position, 3 arterial highways of right-angled intersection, being provided with respectively, and the runaround between each inside and outside Directional island; Canalization island and interior canalization island outside the next door of right-angled intersection surrounding is provided with respectively, and the right-turn lane in the little ring road between each outer canalization island and the interior canalization island and the outside, outer canalization island.

4, by one of claim 1～3 described a kind of traffic arrangement in plane intersection, it is characterized in that: the canalization island is lenticular minute surface shape and its center line parallel edge, roadside around right-angled intersection in described.