CN101550666A - Traffic optimization method of primary and secondary road grade crossing - Google Patents

Traffic optimization method of primary and secondary road grade crossing Download PDF

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Publication number
CN101550666A
CN101550666A CNA200910043270XA CN200910043270A CN101550666A CN 101550666 A CN101550666 A CN 101550666A CN A200910043270X A CNA200910043270X A CN A200910043270XA CN 200910043270 A CN200910043270 A CN 200910043270A CN 101550666 A CN101550666 A CN 101550666A
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road
primary
trunk roads
major trunk
traffic
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CNA200910043270XA
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蒋佳霖
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蒋佳霖
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Priority to CNA200910043270XA priority Critical patent/CN101550666A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

Abstract

Traffic optimization method of primary and secondary road grade crossing, including following steps: first, connecting the central isolation facilities of the two end of the main road to disconnect the primary and secondary road grade crossing; then arranging two symmetrical, air spanning telpher or under pass U-shape turning channels relative to the main road at the primary and secondary road grade crossing and the sidelined lane of the main road at the two ends of the second road, the two U-shape turning channels and the main road constitute a approximate ellipse. Make the cars in need of going straight of left turning to pass the main road of the second road or cars in need of left turning or turning around of the main road to implement inverting or turning around through U-shape turning channel, thereby implementing barrier free traffic of the primary and secondary road grade crossing. The method of the invention is provided with simple method, low implementation cost, small occupancy of land and space, capable of improving traffic capability of the primary and secondary road crossing, reducing traffic accidents, improving traffic safety, saving road resource, which is suitable for using in urban road crossing.

Description

Traffic optimization method of primary and secondary road grade crossing
Technical field
The invention discloses a kind of traffic optimization method of primary and secondary road grade crossing, belong to the urban traffic control technical field.
Background technology
Along with the fast development of China's economic construction, the urban traffic amount increases rapidly, and the situation that is becoming tight day has appearred in traffic, blocks up and often takes place, and the economic development of entire city is restricted, and it is extremely urgent to alleviate traffic jam issue.For urban road, the intersection is the key of urban traffic.In the intersection, the Different Traffic Flows of moving on the road intersection is selected and the conversion traffic direction at this, is the Distribution Center of traffic flow, and the intersection is as the elementary cell of urban road network, and the height of its traffic capacity directly influences the traffic capacity of road network; Existing primary and secondary road grade crossing (comprising cross and T-shaped road junction), the traffic optimization method of taking mainly contains two kinds, and a kind of is that large-scale interchange viaduct is set, and a kind of is the red and green signals lamp to be set organize traffic.Adopt the form of interchange viaduct, investment is big, and land occupation, space are big; Therefore generally to set up overpass bridge unrealistic for the primary and secondary road grade crossing in the city.At present, intersection in the city, the most frequently used is to adopt the red and green signals lamp to organize traffic, it has small investment, engineering quantity is little, can effectively organize the traffic of city grade crossing to a certain extent, but because it adopts is the way to manage of changing the space with the time, that is to say: when the vehicle of a direction passes through the crossing smoothly, be to treat that with the vehicle parking of other one to three direction lamp is a cost, thereby inevitably brought the traffic delay at crossing and block up, so that reduced the traffic capacity of road, in general, adopt the red and green signals lamp to organize traffic, at grade crossing, there are 16 intersection conflict points in four direction, 8 interflow conflict points, 8 diverging conflicts cause crossing traffic capacity deficiency.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and a kind of traffic optimization method of primary and secondary road grade crossing be provided, implement method of the present invention and have that cost of investment is low, the soil and space hold is few, can cancel level crossing traffic lights, reduce the intersection traffic accident, improve traffic safety, save path resource and people travel time, improve the traffic capacity of main and secondary road.
The specific embodiments of a kind of traffic optimization method of primary and secondary road grade crossing of the present invention comprises the steps:
The center isolation facility at the first step, connection two ends, major trunk roads crossing, the at grade intersection at disconnection main and secondary road crossing;
Second the step, at primary and secondary road grade crossing, major trunk roads in the subsidiary road both sides track of keeping to the side, U type turning channel two symmetries, that stride the outage frame or wear down with respect to major trunk roads is set, the U type turning channel of striding the outage frame or wearing down of described two symmetries and major trunk roads formation sub-elliptical.
Among the present invention, the tie point of described U type turning channel and major trunk roads is apart from subsidiary road center line 60-90M.
Among the present invention, the gradient of described U type turning channel is 3-5%.
Among the present invention, stride the described U type turning channel of outage frame major trunk roads and the headway between the major trunk roads and be not less than 4.5M.
Among the present invention, the headway of wearing the described U type turning channel of major trunk roads down is not less than 4.5M.
Among the present invention, the turning radius of described U type turning channel is 40-80M.
The present invention is owing to adopt said method, by on the major trunk roads of primary and secondary road grade crossing both sides, being symmetrical arranged two U type turning channels of striding sky or wearing major trunk roads down, make from subsidiary road and keep straight on, the vehicle that turns left to pass major trunk roads reaches to turn left to the vehicle of subsidiary road from major trunk roads, and the vehicle that need turn around at major trunk roads central partition opening part, can realize commutating or turning around by U type turning channel, thereby realized the primary and secondary road grade crossing barrier free accessibility, improve the traffic capacity and the traffic safety of city main and secondary road, effectively solved the collision problem that intersects of the left-hand rotation of main and secondary road vehicle and craspedodrome and major trunk roads through vehicles.
Adopt the present invention, have the following advantages:
1, separated, reduced the traffic conflict point of primary plane intersection, in the time of will using signal lamp to organize traffic, 16 intersection conflict points of right-angled intersection are reduced to 0,8 interflow, 8 diverging conflicts respectively are reduced to 4; 3 intersection conflict points of T-shaped intersection are reduced to 0, and junction of two streams, split point still are 3.Thereby improved road passage capability.
2, reduce traffic delay, kept the continuity of traffic.
3, Vehicle Speed and road efficient have been improved.
4, reduce traffic accident, improved traffic safety.
5, saved path resource and people's travel time.
6, large-scale relatively overpass bridge has greatly been saved cost, has reduced taking of soil and space, and is easy to utilize.
In sum, the inventive method is simple, implementation cost is low, soil and space hold are few, the travel time that can effectively improve the main and secondary road intersection capacity, reduces traffic accident, improves traffic safety, saves path resource and people; Be suitable for using at city intersection.
Description of drawings
The wagon flow situation schematic diagram of plane right-angled intersection when accompanying drawing 1 is organized traffic for adopting the red and green signals lamp.
The wagon flow situation schematic diagram of T-shaped intersection, plane when accompanying drawing 2 is organized traffic for adopting the red and green signals lamp.
Accompanying drawing 3 is provided with down the wagon flow situation schematic diagram of wearing the plane right-angled intersection after major trunk roads U type turning channel is optimized for employing the inventive method.
Accompanying drawing 4 is striden the wagon flow situation schematic diagram of the T-shaped intersection, plane after outage frame U type turning channel is optimized for adopting the inventive method setting.
Among the figure, 1---major trunk roads, 2---subsidiary road, 3---intersect conflict point, and 4---collaborates conflict point, and 5---diverging conflicts, 6---are striden outage frame U type turning channel, wear major trunk roads U type turning channel under 7---major trunk roads center isolation facility, the 8---.
Can find out from accompanying drawing 1,2, adopt signal lamp to organize traffic, have 16 in crosspoint, each 8 of junction of two streams, split points at right-angled intersection; There are respectively 3 of crosspoint, junction of two streams, split points in the T-shaped intersection.Can find out that from accompanying drawing 3,4 when traffic was organized in optimization of the present invention, the right-angled intersection crosspoint was 0, each 4 of junction of two streams, split points; Crosspoint, T-shaped intersection is 0, each 3 of junction of two streams, split points.
The specific embodiment
The specific embodiment of the present invention describes in detail below in conjunction with accompanying drawing.
Embodiment 1
Referring to accompanying drawing 3, at first, the center isolation facility 7 at two ends, major trunk roads 1 crossing is coupled together, disconnect the at grade intersection of major trunk roads 1 and subsidiary road 2 intersections; Then, in the track of keeping to the side of major trunk roads 1 apart from subsidiary road center line 60M place, be symmetrical arranged and wear major trunk roads 1 under two, the gradient is 3%, headway is not less than 4.5M, turning radius at the U of 40M type turning channel, and described two symmetries following wears U type turning channel and major trunk roads constitute sub-elliptical.Like this, need keep straight on or turn left to pass the vehicle of major trunk roads from subsidiary road, major trunk roads on can turning right in intersection, primary and secondary arterial highway, then, wear U type turning channel under described and enter major trunk roads, turn right in the main and secondary road intersection again or keep straight on, can realize the purpose that the subsidiary road vehicle is kept straight on or turned left; Some direction of traffics need turn left to the vehicle of subsidiary road or the vehicle that turns around at original major trunk roads central partition opening part on major trunk roads, then can on major trunk roads, pass the crossing by former direction of traffic craspedodrome, then, by wearing another direction of traffic that U type turning channel enters major trunk roads down, turn right in the main and secondary road intersection again or keep straight on, can realize the purpose that the major trunk roads vehicle turns left or turns around; Thereby realize the primary and secondary road grade crossing barrier free accessibility.
Embodiment 2
Referring to accompanying drawing 4, at first, the center isolation facility 7 at two ends, major trunk roads 1 crossing is coupled together, disconnect the at grade intersection of major trunk roads 1 and subsidiary road 2 intersections; Then, in the track of keeping to the side of major trunk roads 1 apart from subsidiary road center line 75M place, be symmetrical arranged two, with respect to the outage frame U type of the striding turning channel of major trunk roads 1, the described gradient of striding outage frame U type turning channel is 4%, and major trunk roads 1 between headway be not less than 4.5M, turning radius at the U of 60M type turning channel, described two symmetries stride outage frame U type turning channel and major trunk roads constitute sub-elliptical.Like this, need keep straight on or turn left to pass the vehicle of major trunk roads from subsidiary road, major trunk roads on can turning right in intersection, primary and secondary arterial highway, then, wear U type turning channel under described and enter major trunk roads, turn right in the main and secondary road intersection again or keep straight on, can realize the purpose that the subsidiary road vehicle is kept straight on or turned left; Some runway directions need be turned left to the vehicle of subsidiary road or the vehicle that turns around at original major trunk roads central partition opening part on major trunk roads, then can on major trunk roads, pass the crossing by former direction of traffic craspedodrome, then, by wearing another runway direction that U type turning channel enters major trunk roads under described, turn right in the main and secondary road intersection again or keep straight on, can realize the purpose that the major trunk roads vehicle turns left or turns around; Thereby realized the primary and secondary road grade crossing barrier free accessibility.
Embodiment 3
Referring to accompanying drawing 3, at first, the center isolation facility 7 at two ends, major trunk roads 1 crossing is coupled together, disconnect the at grade intersection of major trunk roads 1 and subsidiary road 2 intersections; Then, in the track of keeping to the side of major trunk roads 1 apart from subsidiary road center line 90M place, be symmetrical arranged and wear major trunk roads 1 under two, the gradient is 5%, headway is not less than 4.5M, turning radius at the U of 80M type turning channel, and described two symmetries following wears U type turning channel and major trunk roads constitute sub-elliptical.Like this, need keep straight on or turn left to pass the vehicle of major trunk roads from subsidiary road, major trunk roads on can turning right in intersection, primary and secondary arterial highway, then, wear U type turning channel under described and enter major trunk roads, turn right in the main and secondary road intersection again or keep straight on, can realize craspedodrome of subsidiary road vehicle or left-hand bend purpose; Some direction of traffics need turn left to the vehicle of subsidiary road or the vehicle that turns around at original major trunk roads central partition opening part on major trunk roads, then can on major trunk roads, pass the crossing by former direction of traffic craspedodrome, then, by wearing another direction of traffic that U type turning channel enters major trunk roads down, turn right in the main and secondary road intersection again or keep straight on, can realize the purpose that the major trunk roads vehicle turns left or turns around; Thereby realize the primary and secondary road grade crossing barrier free accessibility.

Claims (6)

1, traffic optimization method of primary and secondary road grade crossing comprises the steps:
The center isolation facility at the first step, connection two ends, major trunk roads crossing, the at grade intersection at disconnection main and secondary road crossing;
Second the step, at primary and secondary road grade crossing, major trunk roads in the subsidiary road both sides track of keeping to the side, U type turning channel two symmetries, that stride the outage frame or wear down with respect to major trunk roads is set, the U type turning channel of striding the outage frame or wearing down of described two symmetries and major trunk roads formation sub-elliptical.
2, a kind of traffic optimization method of primary and secondary road grade crossing according to claim 1 is characterized in that: the tie point of described U type turning channel and major trunk roads is apart from subsidiary road center line 60-90M.
3, a kind of traffic optimization method of primary and secondary road grade crossing according to claim 1 is characterized in that: the gradient of described U type turning channel is 3-5%.
4, a kind of traffic optimization method of primary and secondary road grade crossing according to claim 1 is characterized in that: stride the described U type turning channel of outage frame major trunk roads and the headway between the major trunk roads and be not less than 4.5M.
5, a kind of traffic optimization method of primary and secondary road grade crossing according to claim 1 is characterized in that: the headway of wearing the described U type turning channel of major trunk roads down is not less than 4.5M.
6, a kind of traffic optimization method of primary and secondary road grade crossing according to claim 1 is characterized in that: the turning radius of described U type turning channel is 40-80M.
CNA200910043270XA 2009-04-30 2009-04-30 Traffic optimization method of primary and secondary road grade crossing Pending CN101550666A (en)

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CNA200910043270XA CN101550666A (en) 2009-04-30 2009-04-30 Traffic optimization method of primary and secondary road grade crossing

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102392401A (en) * 2011-11-01 2012-03-28 韩明友 Method and bridge for realizing continuous passing of vehicles at level crossing by utilizing U-shaped rotary bridges
WO2012113167A1 (en) * 2011-02-21 2012-08-30 新康电脑科技(苏州)有限公司 Car transport system based on express highwa
CN103243623A (en) * 2013-06-03 2013-08-14 韩明友 U-shaped turnabout culvert road for realizing micro interchange at level crossing of urban built-up area
CN104195909A (en) * 2014-08-08 2014-12-10 陈一鸣 Non-elevated tiny urban cross overpass
CN104389251A (en) * 2014-09-16 2015-03-04 杨小林 Combined interchange road system of city bridge
CN104867336A (en) * 2015-05-26 2015-08-26 华南理工大学 Intersection two-phase signal control and canalization method
CN104952262A (en) * 2015-07-12 2015-09-30 张金木 Secondary main road traffic light controller based on GSM (global system for mobile communications) network
WO2020113744A1 (en) * 2018-12-05 2020-06-11 张述文 New method for vehicle to pass through road junction
CN113174792A (en) * 2021-05-10 2021-07-27 李益安 Three-layer overpass without ramp on two bridge surfaces at crossroad

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012113167A1 (en) * 2011-02-21 2012-08-30 新康电脑科技(苏州)有限公司 Car transport system based on express highwa
CN102392401A (en) * 2011-11-01 2012-03-28 韩明友 Method and bridge for realizing continuous passing of vehicles at level crossing by utilizing U-shaped rotary bridges
CN103243623A (en) * 2013-06-03 2013-08-14 韩明友 U-shaped turnabout culvert road for realizing micro interchange at level crossing of urban built-up area
CN104195909A (en) * 2014-08-08 2014-12-10 陈一鸣 Non-elevated tiny urban cross overpass
CN104389251A (en) * 2014-09-16 2015-03-04 杨小林 Combined interchange road system of city bridge
CN104867336A (en) * 2015-05-26 2015-08-26 华南理工大学 Intersection two-phase signal control and canalization method
CN104952262A (en) * 2015-07-12 2015-09-30 张金木 Secondary main road traffic light controller based on GSM (global system for mobile communications) network
WO2020113744A1 (en) * 2018-12-05 2020-06-11 张述文 New method for vehicle to pass through road junction
CN113174792A (en) * 2021-05-10 2021-07-27 李益安 Three-layer overpass without ramp on two bridge surfaces at crossroad

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Open date: 20091007