CN108797246A - A kind of traffic circle vehicle pass-through system and passing control method - Google Patents
A kind of traffic circle vehicle pass-through system and passing control method Download PDFInfo
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- CN108797246A CN108797246A CN201810644527.6A CN201810644527A CN108797246A CN 108797246 A CN108797246 A CN 108797246A CN 201810644527 A CN201810644527 A CN 201810644527A CN 108797246 A CN108797246 A CN 108797246A
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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
Abstract
A kind of traffic circle vehicle pass-through system of present invention offer and passing control method, belong to traffic engineering field.The circuit of a kind of traffic circle vehicle pass-through system of the present invention, traffic circle includes interior circuit and bypass road;Left-hand bend area to be transferred is set between interior circuit and each entrance driveway left turn lane, and left-hand bend area to be transferred includes left extended segment and interior overlay segment;One end of circuit is provided with area to be transferred stop line in the connection of left-hand bend area to be transferred;It is provided with area to be transferred traffic lights in front of the stop line of area to be transferred;Setting straight trip area to be driving between bypass road and each entrance driveway Through Lane, straight trip area to be driving includes right extended segment and outer overlay segment;One end of circuit is provided with straight trip area to be driving stop line in the connection of straight trip area to be driving;It is provided with area to be driving traffic lights in front of straight trip area to be driving stop line.The present invention solves the problems, such as that space resources utilization ratio is low in existing traffic circle, average traffic delay is big.The present invention can be used for the larger traffic circle of left-turning traffic demand.
Description
Technical field
The present invention relates to a kind of vehicle pass-through system and passing control methods, belong to traffic engineering field.
Background technology
Traffic circle is to make all vehicles of entrance with circuit tissue canalized traffic in intersection center setting central island
Without exception counterclockwise around island one-way traffic (country kept to the left then be clockwise), until to be gone
The level-crossing that is driven out to of crossing Li Island, be commonly called as turntable.The urban road small to vehicle flowrate, traffic circle are a kind of effective group
The method for turning to traffic is knitted, but with the continuous increase of transport need, the limitation of traffic circle itself is increasingly prominent how
The traffic efficiency for promoting traffic circle has put on schedule, and signal control is wherein one of method.Traffic circle is main at present
Signal control method be parking twice method and single port clearance method, but both methods has some limitations:It is secondary to stop
Vehicle method requires traffic circle weaving section to have enough spaces to accommodate left turning vehicle to be gone, when left-turning traffic demand is beyond friendship
When knitting the open ended vehicle number of section, this method control effect is poor;And when using single port clearance method, signal period duration can be caused
It is long, and space resources utilization ratio is low in traffic circle, average traffic delay is big.
Based on this, it is badly in need of a kind of new technology, while equilibrium is using space resources in traffic circle, solves secondary
Left-turning traffic demand existing for parking method is more than uncomfortable problem caused by weaving section memory capacity, realizes that improving traffic circle leads to
The purpose of row ability.
Invention content
The present invention is to solve the problems, such as that space resources utilization ratio is low in existing traffic circle, average traffic delay is big, is provided
A kind of traffic circle vehicle pass-through system and passing control method.
A kind of traffic circle vehicle pass-through system of the present invention, including:Centrally located central island, in described
The circuit on heart island, and 4 intersecting roads being connected with circuit, every road includes driving into traffic circle direction
Entrance driveway and the exit ramp for sailing out of traffic circle direction, wherein each entrance driveway includes left turn lane and Through Lane;
One end that every entrance driveway is connect with circuit is equipped with entrance driveway stop line, before the entrance driveway stop line vehicle
It is equipped with entrance driveway traffic lights into the front in direction;
The circuit includes interior circuit and bypass road;
Left-hand bend area to be transferred, the left-hand bend area to be transferred packet are set between the interior circuit and each entrance driveway left turn lane
Include the interior overlay segment close to the left extended segment of left turn lane and with inner ring trace overlap;Circuit in the left-hand bend area to be transferred connection
One end is provided with area to be transferred stop line;It is provided with area to be transferred traffic signals in front of the area to be transferred stop line vehicle forward direction
Lamp;
Setting straight trip area to be driving between the bypass road and each entrance driveway Through Lane, the straight trip area to be driving include leaning on
The right extended segment of nearly Through Lane and the outer overlay segment with outer shroud trace overlap;And the one of circuit in the connection of the straight trip area to be driving
End is provided with straight trip area to be driving stop line;Area to be driving friendship is provided in front of the stop line vehicle forward direction of the straight trip area to be driving
Ventilating signal lamp.
It is expanded on further as to above-mentioned technical proposal:
Further, each straight trip area to be driving and its anticlockwise left-hand bend area to be transferred are non-intersecting.
Further, the left side bearing of left extended segment and the outer edge of interior circuit are tangent.
Further, the area to be transferred stop line of each left-hand bend area to be transferred is located at two side-entrance of left-hand bend area to be transferred
On the line of road stop line outer end.
Further, straight trip area to be driving stop line is located at and the left side bearing both ends of the next left extended segment of its counter clockwise direction
On line.
A kind of traffic circle vehicle passing control method of the present invention, is achieved through the following technical solutions:
1) for 4 intersecting roads of traffic circle, wherein opposite two road are defined as X-direction, in addition two
The opposite road of item is Y-direction;
2) the straight trip phase of the entrance driveway traffic lights of X-direction is opened, while Y-direction area to be transferred traffic lights are opened
It opens, the straight trip area to be driving that the through vehicles after the entrance driveway stop line of X-direction enter X-direction waits for passage, the left-hand bend of Y-direction
Vehicle leaves traffic circle prior to the left turning vehicle after the entrance driveway stop line of Y-direction in area to be transferred;t1After time, Y-direction
The left turn phases of entrance driveway traffic lights be also switched off;After △ t1After time, Y-direction area to be transferred traffic lights also close
It closes;
3) the area to be driving traffic lights of X-direction are opened, the vehicle in the straight trip area to be driving of X-direction prior to X-direction into
Through vehicles after mouth road stop line leave traffic circle;At the same time, the left-hand rotation phase of the entrance driveway traffic lights of X-direction
Position is opened, and X-direction left turning vehicle enters X-direction left-hand bend area to be transferred and waits for passage;t2After time, the entrance driveway traffic of X-direction
The straight trip phase of signal lamp is also switched off;After △ t2After time, X-direction area to be driving traffic lights are also switched off;
4) X-direction area to be transferred traffic lights are opened, while the straight trip phase of the entrance driveway traffic lights of Y-direction is opened
When, vehicle leaves traffic circle prior to the left turning vehicle after the entrance driveway stop line of X-direction in the left-hand bend area to be transferred of X-direction
Mouthful, the straight trip area to be driving that the through vehicles after the entrance driveway stop line of Y-direction enter Y-direction waits for passage;t3After time, the side X
To the left turn phases of entrance driveway traffic lights be also switched off;After △ t1After time, X-direction area to be transferred traffic lights also close
It closes;
5) the area to be driving traffic lights of Y-direction are opened, the vehicle in the straight trip area to be driving of Y-direction prior to Y-direction into
Through vehicles after mouth road stop line leave traffic circle;At the same time, the left-hand rotation phase of the entrance driveway traffic lights of Y-direction
Position is opened, and Y-direction left turning vehicle enters Y-direction left-hand bend area to be transferred and waits for passage;t4After time, the entrance driveway traffic of Y-direction
The straight trip phase of signal lamp is also switched off;After △ t2After time, Y-direction area to be driving traffic lights are also switched off;
6) step 2) is repeated to step 5) until access control stops.
It is expanded on further as to above-mentioned technical proposal:
Further, △ t1Meet the following conditions:
△t1=L1/vl
Wherein, vlIndicate average overall travel speed of the left turning vehicle in traffic circle;L1Indicate the road of left-hand bend area to be transferred
Electrical path length.
Further, △ t2Meet the following conditions:
△t2=L2/vs
Wherein, vsIndicate average overall travel speed of the through vehicles in traffic circle, L2Indicate the path of straight trip area to be driving
Length.
Present invention feature the most prominent and significant advantageous effect are:
A kind of traffic circle vehicle pass-through system according to the present invention and passing control method, in traffic circle
Straight trip area to be driving at left-hand bend area to be transferred and 4 is set at 4, and traffic lights are set in front of it.One direction (X-direction)
When phase of keeping straight on is let pass, the direction (X-direction) left turning vehicle drives directly into left-hand bend area to be transferred without the central island that detours;
When the direction (X-direction) left turn phase is let pass, other direction (Y-direction) through vehicles enter straight trip area to be driving;Other direction (Y
Direction) straight trip phase let pass when, (Y-direction) left turning vehicle drives directly into left-hand bend area to be transferred without detour central island;Its (Y
Direction) for left turn phase when letting pass, opposite other side (X-direction) through vehicles enter straight trip area to be driving;It recycles successively, realizes that annular is handed over
The optimal control of prong.Can the balanced path space resource using in traffic circle, space resources utilization ratio improves about
25%, and solve the problems, such as that parking twice method fails when left-turning traffic demand is more than traffic circle weaving section memory capacity,
Average traffic delay reduces, and has achieved the purpose that improve intersection capacity.
Description of the drawings
Fig. 1 is left-hand bend area to be transferred of the present invention, straight trip area to be driving and stop line, traffic lights layout diagram;
Fig. 2 is that left-hand rotation vehicle of the present invention drives into area to be transferred schematic diagram;
Fig. 3 is that straight traffic of the present invention drives into area to be driving schematic diagram;
1. central island, 2. roads, 2-1. entrance driveway, 2-2. exit ramps, 3. entrance driveway stop lines, 4. left-hand bend areas to be transferred,
The left extended segments 4-1., overlay segment in 4-2., the areas to be transferred 4-3. stop line, 5. straight trip areas to be driving, 5-3. keep straight on area to be driving stop line.
Specific implementation mode
Specific implementation mode one:Present embodiment is illustrated in conjunction with Fig. 1, a kind of annular that present embodiment provides is handed over
Prong vehicle pass-through system, including:Centrally located central island 1 around the circuit of the central island 1, and is connected with circuit
(since most of traffic circle is all 4 roads, the technical program only considers 4 roads to the road 2 of logical 4 intersections
Situation), every road 2 includes driving into the entrance driveway 2-1 in traffic circle direction and sailing out of going out for traffic circle direction
Mouth road 2-2, wherein each entrance driveway 2-1 includes left turn lane and Through Lane;
One end that each entrance driveway 2-1 is connect with circuit is equipped with entrance driveway stop line 3, the entrance driveway stop line 3
The front of vehicle forward direction is equipped with entrance driveway traffic lights;
The circuit includes interior circuit and bypass road;
Left-hand bend area to be transferred 4 is set between the interior circuit and each entrance driveway 2-1 left turn lanes, it is described to turn left to wait turning
Area 4 includes the interior overlay segment 4-2 close to the left extended segment 4-1 of left turn lane and with inner ring trace overlap;The left-hand bend area to be transferred 4
One end of circuit is provided with area to be transferred stop line 4-3 in connection;It is set in front of the area to be transferred stop line 4-3 vehicle forward directions
Area to be transferred traffic lights are equipped with, the position of traffic lights is generally located on the front of stop line rear vehicle, eye-catching enough,
To ensure that vehicle driver can easily see;
Setting straight trip area to be driving 5, the straight trip area to be driving 5 between the bypass road and each entrance driveway 2-1 Through Lanes
It include the outer overlay segment close to the right extended segment of Through Lane and with outer shroud trace overlap;And in the straight trip area to be driving 5 connects
One end of circuit is provided with straight trip area to be driving stop line 5-3;The front of the straight trip area to be driving stop line 5-3 vehicle forward directions
It is provided with area to be driving traffic lights.
The establishment of applicable elements of the present invention:
The present invention is mainly suitable for the traffic circles of the following conditions:(1) traffic circle total wheel traffic is big, using no letter
Traffic jam frequent occurrence when number control;(2) left-turn volume is big, when taking parking twice method, traffic circle weaving section without
Enough spaces store left turning vehicle to be gone, i.e.,:
In formula:QcIndicate the left turning vehicle number reached per the signal period, veh;
lvIndicate space headway when left-hand rotation vehicle is lined up in traffic circle, m/veh;
liIt can be used to store i-th lane length of left turning vehicle, m, generally adjacent import in expression traffic circle
Between intertexture segment length half;
N indicates the number of track-lines of weaving section in traffic circle.
Other steps and parameter are same as the specific embodiment one.
Specific implementation mode two:The present embodiment is different from the first embodiment in that avoid the vehicle of both direction
Traffic conflict, each straight trip area to be driving 5 and its anticlockwise left-hand bend area to be transferred 4 occur in traffic circle for stream
It is non-intersecting.
Other steps and parameter are same as the specific embodiment one.
Specific implementation mode three:The present embodiment is different from the first and the second embodiment in that ensure from entrance driveway
The left-hand rotation vehicle smooth ride of circuit in traffic circle is driven into, the outer edge of the left side bearing and interior circuit of left extended segment 4-1 is tangent.
Other steps and parameter are the same as one or two specific embodiments.
Specific implementation mode four:Present embodiment unlike specific implementation mode three, it is each it is described turn left wait turn
The area to be transferred stop line 4-3 in area 4 is located on the line of the outer end of the 4 both sides entrance driveway stop line 3 of left-hand bend area to be transferred.Such as Fig. 1
Shown area to be transferred stop line 4-3 on the line AB of the outer end of the 4 both sides entrance driveway stop line 3 of left-hand bend area to be transferred, this
When left-hand bend area to be transferred 4 in vehicle when sailing out of traffic circle turning radius it is more satisfactory.
Other steps and parameter are the same as the specific implementation mode 3.
Specific implementation mode five:Present embodiment is unlike specific implementation mode four, and keep straight on area to be driving stop line 5-3
On the line CD at the left side bearing both ends with the next left extended segment 4-1 of its counter clockwise direction, position as shown in Figure 1 is preferable position
It sets.
Other steps and parameter are identical as specific implementation mode four.
Specific implementation mode six:Present embodiment is illustrated in conjunction with Fig. 2, Fig. 3, a kind of ring that present embodiment provides
Shape intersection vehicles passing control method, specifically includes:
1) for the road of 4 intersections of traffic circle, wherein opposite two road are defined as X-direction, in addition
Two opposite roads are Y-direction;In attached drawing 2, the upper and lower directions of figure is X-direction, and the left and right directions of figure is X-direction.
2) the straight trip phase of the entrance driveway traffic lights of X-direction is opened, while Y-direction area to be transferred traffic lights are opened
It opens, straight trip (Through Lane is interior, straight trip right-hand rotation shares the straight trip in track) vehicle after the entrance driveway stop line of X-direction enters X
The straight trip area to be driving in direction, which waits for, passes through, after vehicle is prior to the entrance driveway stop line of Y-direction in the left-hand bend area to be transferred of Y-direction
(in the left turn lane) vehicle that turns left leaves traffic circle;t1After time, the left turn phase of the entrance driveway traffic lights of Y-direction
It is also switched off;After △ t1After time, Y-direction area to be transferred traffic lights are also switched off;
3) the area to be driving traffic lights of X-direction are opened, the vehicle in the straight trip area to be driving of X-direction prior to X-direction into
Straight trip (in Through Lane, straight trip turn right the straight trip shared in track) vehicle after mouthful road stop line leave traffic circle (see
1. and 3. path in Fig. 2);At the same time, the left turn phase of the entrance driveway traffic lights of X-direction is opened, X-direction left-hand rotation vehicle
Without detouring traffic circle, it is directly entered X-direction left-hand bend area to be transferred and waits in current (see the path in Fig. 2 2. and 4.);
t2After time, the straight trip phase of the entrance driveway traffic lights of X-direction is also switched off;After △ t2After time, X-direction area to be driving
Traffic lights are also switched off;
4) X-direction area to be transferred traffic lights are opened, while the straight trip phase of the entrance driveway traffic lights of Y-direction is opened
When, in the left-hand bend area to be transferred of X-direction vehicle prior to left-hand rotation (in the left turn lane) vehicle after the entrance driveway stop line of X-direction from
Open traffic circle (see the path in Fig. 3 5. and 7.), straight trip after the entrance driveway stop line of Y-direction (in Through Lane, straight trip
Turn right and share straight trip in track) vehicle enters the straight trip area to be driving of Y-direction and waits in current (see the path in Fig. 3 6. and 8.);
t3After time, the left turn phase of the entrance driveway traffic lights of X-direction is also switched off;After △ t1After time, X-direction area to be transferred is handed over
Ventilating signal lamp is also switched off;
5) the area to be driving traffic lights of Y-direction are opened, the vehicle in the straight trip area to be driving of Y-direction prior to Y-direction into
Straight trip (Through Lane is interior, straight trip right-hand rotation shares the straight trip in track) vehicle after mouth road stop line leaves traffic circle;With
This simultaneously, the left turn phases of the entrance driveway traffic lights of Y-direction is opened, and Y-direction left turning vehicle, which enters Y-direction, to be turned left to wait to turn
Area, which waits for, passes through;t4After time, the straight trip phase of the entrance driveway traffic lights of Y-direction is also switched off;After △ t2After time, Y
Direction area to be driving traffic lights are also switched off;
6) step 2) is repeated to step 5) until access control stops.
Specific implementation mode seven:Present embodiment is unlike specific implementation mode six, to avoid left turn phase from terminating
When traffic circle in be detained left turning vehicle influence other direction through vehicles passage, △ t1Meet the following conditions:
△t1=L1/vl
Wherein, vlIndicate average overall travel speed of the left turning vehicle in traffic circle, m/s;L1Indicate left-hand bend area to be transferred
Path length, m.
Other steps and parameter are identical as specific implementation mode six.
Specific implementation mode eight:Present embodiment is unlike specific implementation mode six or seven, to avoid straight trip phase
At the end of the straight traffic that is detained in traffic circle influence the passage of thing left turn traffic, △ t2Meet the following conditions:
△t2=L2/vs
Wherein, vsIndicate average overall travel speed of the through vehicles in traffic circle, m/s, L2Indicate straight trip area to be driving
Path length, m.
Other steps and parameter are identical as specific implementation mode six or seven.
Embodiment
Beneficial effects of the present invention are verified using following embodiment:
As shown in Figure 1, rotary island weaving section is 2 tracks, the every lane length of weaving section of adjacent import is 30m, left-hand rotation vehicle exists
Space headway when being lined up in rotary island is 6m, secondary when any one entrance driveway is more than 6 per signal period left turning vehicle number
Parking method will fail, and this method can be used.
A kind of traffic circle vehicle passing control method described in the present embodiment follows the steps below:
1) 4 intersecting roads up and down of the traffic circles Fig. 1 correspond to the north east Nan Xi respectively, then this 4 roads can
It is divided into North and South direction and east-west direction;
Signal Phase Design scheme is shown in Table 1:
1 signal phase sequence scheme of table
2) the straight trip phase of the entrance driveway traffic lights of North and South direction is opened, while east-west direction area to be transferred traffic signals
Lamp is opened, straight trip (Through Lane is interior, straight trip right-hand rotation shares the straight trip in track) vehicle after the entrance driveway stop line of North and South direction
The straight trip area to be driving for entering North and South direction waits for and passing through, and vehicle is prior to east-west direction in the left-hand bend area to be transferred of east-west direction
Left-hand rotation (in left changing lane) vehicle after entrance driveway stop line leaves traffic circle;t1After time, the entrance driveway of east-west direction is handed over
The left turn phase of ventilating signal lamp is also switched off;After △ t1After time, east-west direction area to be transferred traffic lights are also switched off;
3) the area to be driving traffic lights of North and South direction are opened, and the vehicle in the straight trip area to be driving of North and South direction is prior to north and south
Straight trip (Through Lane is interior, straight trip right-hand rotation shares the straight trip in track) vehicle after the entrance driveway stop line in direction leaves annular friendship
Prong;At the same time, the left turn phase of the entrance driveway traffic lights of North and South direction is opened, and North and South direction left turning vehicle enters south
The north waits for passage in turning area to be transferred to the left;t2After time, the straight trip phase of the entrance driveway traffic lights of North and South direction is also closed
It closes;After △ t2After time, North and South direction area to be driving traffic lights are also switched off;
4) North and South direction area to be transferred traffic lights are opened, while the straight trip phase of the entrance driveway traffic lights of east-west direction
When position is opened, vehicle (turns left prior to the left-hand rotation after the entrance driveway stop line of North and South direction in the left-hand bend area to be transferred of North and South direction
In track) vehicle leaves traffic circle, and (in Through Lane, straight trip turns right for straight trip after the entrance driveway stop line of east-west direction
Share the straight trip in track) vehicle enter east-west direction straight trip area to be driving wait for pass through;t3After time, the import of North and South direction
The left turn phase of road traffic lights is also switched off;After △ t1After time, North and South direction area to be transferred traffic lights are also switched off;
5) the area to be driving traffic lights of east-west direction are opened, and the vehicle in the straight trip area to be driving of east-west direction is prior to thing
Straight trip (Through Lane is interior, straight trip right-hand rotation shares the straight trip in track) vehicle after the entrance driveway stop line in direction leaves annular friendship
Prong;At the same time, the left turn phase of the mouth access traffic lights of east-west direction is opened, and east-west direction left turning vehicle enters east
West turn to the left area to be transferred wait for pass through;t4After time, the straight trip phase of the entrance driveway traffic lights of east-west direction is also closed
It closes;After △ t2After time, east-west direction area to be driving traffic lights are also switched off;
6) step 2) is repeated to step 5) until access control stops.
If the end time of north and south left turn phase is 8:00:15 (i.e. at the end of the signal lamp of north and south left-hand bend area to be transferred
Between), the path length 35m of north and south entrance driveway left turn lane stop line to left-hand bend area to be transferred stop line, north and south left turning vehicle exists
Average overall travel speed in rotary island is 7m/s, then north and south entrance driveway left rotaring signal lamp should be 8:00:10 terminate green light.
If thing is kept straight on, the end time of phase is 8:00:45 (i.e. the end times of thing straight trip signal lamp for driving waiting area),
Thing entrance driveway Through Lane stop line is to the path length 32m for area to be driving stop line of keeping straight on, and east-west direction through vehicles are in ring
Average overall travel speed in island is 8m/s, then thing entrance driveway straight trip signal lamp should be 8:00:41 terminate green light.
The present embodiment method compared with the conventional method, can the balanced path space resource using in traffic circle, space
The level of resources utilization improves about 25%, and average traffic delay reduces, and improves intersection capacity.
The present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, this field
Technical staff makes various corresponding change and deformations in accordance with the present invention, but these corresponding change and deformations should all belong to
The protection domain of appended claims of the invention.
Claims (8)
1. a kind of traffic circle vehicle pass-through system, including:Centrally located central island surround the circuit of the central island,
And 4 intersecting roads being connected with circuit, every road include driving into the entrance driveway in traffic circle direction and sailing
Exit ramp from traffic circle direction, wherein each entrance driveway includes left turn lane and Through Lane, it is characterised in that:
One end that every entrance driveway is connect with circuit is equipped with entrance driveway stop line, the entrance driveway stop line vehicle advance side
To front be equipped with entrance driveway traffic lights;
The circuit includes interior circuit and bypass road;
Left-hand bend area to be transferred is set between the interior circuit and each entrance driveway left turn lane, and the left-hand bend area to be transferred includes leaning on
The left extended segment of nearly left turn lane and the interior overlay segment with inner ring trace overlap;One end of circuit in the left-hand bend area to be transferred connection
It is provided with area to be transferred stop line;It is provided with area to be transferred traffic lights in front of the area to be transferred stop line vehicle forward direction;
Setting straight trip area to be driving between the bypass road and each entrance driveway Through Lane, the straight trip area to be driving include close to straight
The right extended segment of runway and outer overlay segment with outer shroud trace overlap;And one end of circuit is set in the connection of the straight trip area to be driving
It is equipped with straight trip area to be driving stop line;Traffic letter in area to be driving is provided in front of the stop line vehicle forward direction of the straight trip area to be driving
Signal lamp.
2. a kind of traffic circle vehicle pass-through system according to claim 1, which is characterized in that each described keep straight on waits sailing
Area and its anticlockwise left-hand bend area to be transferred are non-intersecting.
3. a kind of traffic circle traffic signal control method according to claim 1 or claim 2, which is characterized in that left extended segment
Left side bearing and interior circuit outer edge it is tangent.
4. a kind of traffic circle vehicle pass-through system according to claim 3, which is characterized in that each left-hand bend waits for
The area to be transferred stop line for turning area is located on the line of the left-hand bend area to be transferred both sides entrance driveway stop line outer end.
5. a kind of traffic circle vehicle pass-through system according to claim 4, which is characterized in that straight trip area to be driving stop line
On the line at the left side bearing both ends with the next left extended segment of its counter clockwise direction.
6. using a kind of any one of Claims 1 to 5 passing control method of traffic circle vehicle pass-through system, specifically
Including:
1) for 4 intersecting roads of traffic circle, wherein opposite two road are defined as X-direction, two other phase
To road be Y-direction;
2) the straight trip phase of the entrance driveway traffic lights of X-direction is opened, while Y-direction area to be transferred traffic lights are opened, the side X
To entrance driveway stop line after through vehicles enter X-direction straight trip area to be driving wait for pass through, the left-hand bend area to be transferred of Y-direction
Interior vehicle leaves traffic circle prior to the left turning vehicle after the entrance driveway stop line of Y-direction;t1After time, the import of Y-direction
The left turn phase of road traffic lights is also switched off;After △ t1After time, Y-direction area to be transferred traffic lights are also switched off;
3) the area to be driving traffic lights of X-direction are opened, entrance driveway of the vehicle in the straight trip area to be driving of X-direction prior to X-direction
Through vehicles after stop line leave traffic circle;At the same time, the left turn phase of the entrance driveway traffic lights of X-direction is opened
It opens, X-direction left turning vehicle enters X-direction left-hand bend area to be transferred and waits for passage;t2After time, the entrance driveway traffic signals of X-direction
The straight trip phase of lamp is also switched off;After △ t2After time, X-direction area to be driving traffic lights are also switched off;
4) X-direction area to be transferred traffic lights are opened, while when the straight trip phase unlatching of the entrance driveway traffic lights of Y-direction, X
Vehicle leaves traffic circle, the side Y prior to the left turning vehicle after the entrance driveway stop line of X-direction in the left-hand bend area to be transferred in direction
To entrance driveway stop line after through vehicles enter Y-direction straight trip area to be driving wait for pass through;t3After time, X-direction into
The left turn phase of mouth road traffic lights is also switched off;After △ t1After time, X-direction area to be transferred traffic lights are also switched off;
5) the area to be driving traffic lights of Y-direction are opened, entrance driveway of the vehicle in the straight trip area to be driving of Y-direction prior to Y-direction
Through vehicles after stop line leave traffic circle;At the same time, the left turn phase of the entrance driveway traffic lights of Y-direction is opened
It opens, Y-direction left turning vehicle enters Y-direction left-hand bend area to be transferred and waits for passage;t4After time, the entrance driveway traffic signals of Y-direction
The straight trip phase of lamp is also switched off;After △ t2After time, Y-direction area to be driving traffic lights are also switched off;
6) step 2) is repeated to step 5) until access control stops.
7. a kind of traffic circle vehicle passing control method according to claim 6, which is characterized in that △ t1Meet following
Condition:
△t1=L1/vl
Wherein, vlIndicate average overall travel speed of the left turning vehicle in traffic circle;L1Indicate the path length of left-hand bend area to be transferred
Degree.
8. a kind of traffic circle vehicle passing control method described according to claim 6 or 7, which is characterized in that △ t2Meet with
Lower condition:
△t2=L2/vs
Wherein, vsIndicate average overall travel speed of the through vehicles in traffic circle, L2Indicate the path length of straight trip area to be driving
Degree.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810644527.6A CN108797246B (en) | 2018-06-21 | 2018-06-21 | Vehicle passing system and passing control method for ring-shaped intersection |
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CN201810644527.6A CN108797246B (en) | 2018-06-21 | 2018-06-21 | Vehicle passing system and passing control method for ring-shaped intersection |
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CN108797246A true CN108797246A (en) | 2018-11-13 |
CN108797246B CN108797246B (en) | 2020-11-10 |
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