CN102561121A

CN102561121A - Now urban traffic network

Info

Publication number: CN102561121A
Application number: CN2011100075343A
Authority: CN
Inventors: 谢志浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-01
Filing date: 2011-01-01
Publication date: 2012-07-11

Abstract

The invention relates to a new urban traffic network, which comprises a traffic network formed from streets for vehicle driving, crossroads of the streets, and a stereoscopic crossing system. In the traffic network of the present invention, the original crossroads are changed into the Y-shaped crossroads or the T-shaped crossroads, two left bends and a plane left-turning bend are arranged on three left-turning bends on the crossroads, wherein the left bend and the left-turning bends form the stereoscopic crossing road. According to the present invention, a plurality of the special crossing lanes are reasonably arranged in a city to form the network, such that the traffic signal lamp is not required inside the network, and the driving speed can be substantially improved; compared to the original urban road traffic layout, the new urban traffic network of the present invention has the following advantages that: the traffic congestion can be substantially released, and the vehicle driving speed and the passing rate can be improved; if the traffic accident is generated in one node inside the network, the strong compensatory function is provided, and no traffic network jam is generated; the new urban traffic network can be gradually performed in areas and segments according to the actual condition of the city, and can further be performed from the one node of the urban traffic roads.

Description

A kind of new urban traffic network

Technical field the present invention relates to the urban traffic field, especially the big and medium-sized cities that block up of traffic.

The street in the existing city of background technology is criss-cross construction mostly; When the function in street is used for urban traffic; The safe passing that need left-hand rotation, right-hand rotation, the three kinds of signal lamps of keeping straight on comes management vehicle; Cause vehicle to need the stand-by period like this, limited the speed of passing through of vehicle at crossing through right-angled intersection; Though overhead road of city system signal lamp of no use does not form network, so place traffic congestion can cause the paralysis of whole piece overhead system.The present invention has overcome the shortcoming of these two kinds of traffic structures, to guarantee that urban traffic is unimpeded to greatest extent.

Summary of the invention the present invention is directed to the main cause of urban traffic blocking, and---need wait before the traffic lights and propose solution completely through problem---solves with a kind of new urban traffic network.

The present invention's " new urban traffic network " needs to transform original cross road junction; All be transformed into Y type or T-junction crossing; On three left-turning pathways of each intersection, arrange interchange and plane left-turning pathways that two left sides are curved, arrange reasonably that in a city some this crisscross dedicated Lanes form network; It must be that three-dimensional intersecting passed through that road in the network produces when intersecting with other roads; The curved road crossing system in two left sides arranging at each Y type or T-junction crossing can all be the ground upper space, can all be the underground space also, also can one portion space on the ground, another is in the underground space; The street minimum widith that is arranged to network should be able to allow two motor vehicles to pass through relatively by the speed of a motor vehicle of cruising.It is current that this network can limit certain specific vehicular traffic for city traffic management department, to improve its operational efficiency.

The present invention compare with existing urban traffic have following advantage; Except that the access of network, do not need traffic lights in network internal, vehicle is as long as abide by just ability safe operation of traffic rules, raising road speed that can be bigger.Some nodes in network internal produce operation troubles, and very strong compensation is arranged, as long as the short time can fix a breakdown, are unlikely to cause the paralysis or the obstruction of whole network.And can accomplish the actual conditions according to the city, burst, segmentation are progressively carried out, and also can come into effect from some nodes of urban traffic road.

Description of drawings Fig. 1 is Y type urban traffic network (or claiming a honeycomb fashion transportation network) schematic layout pattern;

Fig. 2 is that urban traffic network vertically is a straight way, laterally uses the structural representation of T-shaped layout;

Fig. 3 is that urban traffic network laterally is a straight way, vertically uses the structural representation of T-shaped layout;

Fig. 4 is the clover leaf topology layout sketch map of two left-hand bend roads at Junction on bend ahead crossing;

Fig. 5 is the clover leaf topology layout sketch map of two left-hand bend roads of fourth type intersection;

Fig. 6 is another clover leaf topology layout sketch map of two left-hand bend roads of fourth type intersection;

Fig. 7 is that existing right-angled intersection is transformed into 4 T-shaped road junction sketch mapes;

Fig. 8 is that new town transportation network comp comprehensive layout gives an example.

It is Y type urban traffic network (or claiming the honeycomb fashion transportation network) schematic layout pattern that the specific embodiment details embodiments of the invention: Fig. 1 below in conjunction with accompanying drawing 1-8; Driving street on the network is arranged to cellular structure; " import and export " that pass in and out each bar road of this network still can be provided with traffic lights; A zone of network internal has schematically provided " regional import " and " regional export " that gets into or roll away from this network; This is a kind of Utopian layout, is suitable for the new extended area in city or city of new development.Fig. 2 is that urban traffic network vertically is a straight way, laterally uses the structural representation of T-shaped layout; This vertically is the T-shaped layout of straight way, be applicable to that former north and south, city sustainer layout does not change, and thing changes over T-shaped crossing, and its " access " is identical with Fig. 1 with " regional export " layout principle with " regional import ".Fig. 3 is that urban traffic network laterally is a straight way, vertically uses the structural representation of T-shaped layout; Be applicable to that city former thing sustainer layout does not change, north and south changes over T-shaped crossing, and its " access " is identical with Fig. 1 with " regional export " layout principle with " regional import ".Also can Y type and T-shaped structure composition be applied in the network in same city, according to Fig. 1, Fig. 2 and shown in Figure 3, the city can be transformed into according to the existing road traffic general layout of the big young pathbreaker of scale vertically has the M bar, and the transportation network of N bar is laterally arranged; Concrete on each node of Xrds in length and breadth be Y type node or T-shaped node after confirming to transform, provide the design scheme of each node then; This transportation network is found out in how many graded crossing again needs with the road that other roads are produced, and also makes concrete design scheme; Just accomplished the layout of whole network.

Need the layout of two left-hand bend interchanges and a plane left-turning pathways at the Junction on bend ahead crossing; In Y type intersection, can choose 2 roads wantonly and build the left-hand bend road crossing system; 1 is the left-hand bend interchange in a road in Fig. 4; 2 be No. two roads the left-hand bend interchange; 3 is the plane left-turning pathways in No. three roads, so just can let on three roads the contact vehicle having no under the situation of traffic signals smoothly, safety passes through; Because three road angles of intersection of Y type are bigger, it is less to turn, and can reduce the angle that steering wheel is beaten, and helps improving passing through speed.Fig. 5 is the clover leaf topology layout sketch map of two left-hand bend roads of fourth type intersection; Must there be one of them direction of road to keep straight in T-shaped intersection; Do not turn left; In order to improve the speed of service of vehicle, should not to this direction pass through carry out graded crossing, can select the relative direction of traffic in this road and an other road that graded crossing is set; 4 is left-hand bend interchanges of No. four road vehicles in Fig. 5, and 5 is the left-hand bend interchanges on vehicle right side, No. five roads, and 6 is that No. five road vehicle left side craspedodromes are passed through.

Also can arrange graded crossing for the road surface than the T-junction crossing in alleyway road by Fig. 6 mode; Its principle is identical with Fig. 5; Just can not satisfy the car plane contact in the road width space simultaneously and adopt with graded crossing current time, it uses space or the shop of road survey outward as clover leaf space; 7 is left-hand bend interchanges of No. six road vehicles in Fig. 6, and 8 is left-hand bend interchanges of right side, No. seven roads vehicle, and 9 is that the vehicle craspedodrome of left side, No. seven roads is passed through.

For being originally crossroad (also can be five intersection of roads or more Thomas crossing); Also can he be transformed into the T-shaped road junction earlier by Fig. 7; The crossing of No. eight roads, No. nine former crosses before this in road in Fig. 7 for example, the 10th, through improved disc type loop turn, the 11st, the greening island that redundant space forms in the middle of the loop turn; An original so cross crossing has become four T-shaped crossings, and the principle of passing through according to the T-shaped road junction solves the stereoscopic arrangement problem then.

Fig. 8 has provided new town transportation network comp comprehensive layout for example: in this example earlier will be in length and breadth four major trunk roads by Fig. 7 the crossroad is transformed into the T-shaped road junction of disc structure, remaining presses the scheme layout at Y type or T-junction crossing.

Claims

1. new urban traffic network.Comprise the street that to drive a vehicle, the intersection in street and the transportation network that road crossing system is formed; It is characterized in that cross road junction original in the present networks all is transformed into Y type or T-junction crossing; Arrange that on three left-turning pathways of each intersection two left bends become interchange and a plane left-turning pathways, arrange reasonably that in a city some this crisscross dedicated Lanes form network.

2. it is characterized in that according to claims 1 described new town transportation network it must be that three-dimensional intersecting passed through that road in the network produces when intersecting with other roads.

3. it is characterized in that according to claims 1 said new urban traffic network the curved road crossing system in two left sides in each Y type or T-junction crossing layout can all be the ground upper space; Can all be the underground space also; Also can one portion space on the ground, another is in the underground space.

4. it is characterized in that according to claims 1 said new urban traffic network the street minimum widith that is arranged to network should be able to allow two motor vehicles to pass through relatively by the speed of a motor vehicle of cruising.