CN102194314A - Method and road facilities for maximizing traffic flow - Google Patents
Method and road facilities for maximizing traffic flow Download PDFInfo
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- CN102194314A CN102194314A CN2010101223757A CN201010122375A CN102194314A CN 102194314 A CN102194314 A CN 102194314A CN 2010101223757 A CN2010101223757 A CN 2010101223757A CN 201010122375 A CN201010122375 A CN 201010122375A CN 102194314 A CN102194314 A CN 102194314A
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- vehicle flowrate
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000001360 synchronised effect Effects 0.000 claims abstract description 11
- 230000006698 induction Effects 0.000 claims description 10
- 230000005693 optoelectronics Effects 0.000 claims description 7
- 239000003550 marker Substances 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000008447 perception Effects 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 3
- 230000005674 electromagnetic induction Effects 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention discloses a method and road facilities for maximizing a traffic flow. The method comprises the following steps of: unifying speed of the vehicles traveling on the section of a road carrying out the method for maximizing the traffic flow as maximal restricted speed set for the section of the road; unifying a minimal spacing under the condition of ensuring safety, i.e. corresponding the minimal safe braking distance between a front vehicle and a rear vehicle with unified speed; and setting the relationship between the minimal safe braking distance of the front vehicle and the rear vehicle and the maximal restricted speed, and the road facilities for maximizing the traffic flow according to the following formulae: the minimal safe braking distance Lm= vm*[(t1+(tb-ta)+(t''b-t''a))] (formula 1), the unified minimal spacing Sm=Lm= vm*[(t1+(tb-ta)+(t''b-t''a))] (formula 2); and the facilities are as follow: on the road carrying out maximization of the traffic flow, all lanes are provided with movable lane separating columns for inhibiting lane-changing of the vehicles; range markers are arranged along the road, so that drivers can perceive a spacing; traffic lights and photoelectric sensing delay switches are arranged every 20-30 meters on all sections of the road; and timeshare shunt traffic lights are arranged at a junction of the lanes on the road carrying out synchronous traveling. Thus, the traffic flow can be ensured to be maximized, thereby ensuring road smoothness during the rush hour.
Description
Technical field
The present invention relates to method and road equipment that road traffic realizes that the big flow of vehicle is current, especially a kind of maximum vehicle flowrate method and road equipment.
Background technology
The vehicle of travels down all is that the single vehicle freedom is independently travelled at present, except top speed limits, and the unified speed of a motor vehicle and unified spacing, just the vehicle of entire road does not have implementation to travel synchronously.Vehicle is wanted to walk and many how slow is just walked slowly, just how far wants every to cause car many more just random more every more many, and that just leans between random more car and the car is near more, and that leans between the car is near more, and " step " just " steps " and do not open, and the road is just stifled more, and the road is stifled more, and vehicle flowrate is just more little.Need the big more time of vehicle flowrate in that car more more like this, because vehicle is advanced and is in disordered state and do not carry out synchronously, flow is also more little on the contrary.China's economic is just being located the flourish stage at present, and automobile quantity 1 year increases tired with several ten million speed.Urban road is the construction in Urban Bridge, tunnel particularly, lags far behind gathering way of vehicle, causes long large tracts of land traffic congestion, has had a strong impact on life, work, the trip of urban human, has influenced economic normal development.
Summary of the invention
The invention provides a kind of maximum vehicle flowrate method and road equipment, purpose is that this method of enforcement and all vehicles of advancing of facility highway section are carried out same maximum speed limit and the forward and backward unified minimum spacing of maximum safety that keeps of vehicle travels synchronously, purpose is to realize speed of a motor vehicle maximum, spacing minimum, vehicle flowrate maximum under the premise that security is guaranteed, to improve road section capacity, to guarantee operate as normal, the studying and living of urban human.
Maximum vehicle flowrate method of the present invention is:
The maximum speed limit that promptly original this highway section of the speed of a motor vehicle of unified these all traveling vehicles of highway section is provided with; Guarantee the down unified minimum spacing of safety condition, i.e. the minor increment of the front and back car safety shut-down of the corresponding unified speed of a motor vehicle; The minor increment of front and back car safety shut-down and being provided with according to following mode of the relation of maximum speed limit and maximum vehicle flowrate road equipment are carried out:
The minimum spacing Lm=vm of safety shut-down * [(t1+ (tb-ta)+(t " b-t " a)] (1 formula) is set
Unified minimum spacing Sm=Lm=v is set
m* [(t
1+ (t
b-t
a)+(t "
b-t "
a)] (2 formula)
In the formula: v
mBe maximum speed limit
t
1Be driver's reaction time, 0.3-1.0 second
t
bBe the back car braking gap make-up time
t
aBe the front truck braking gap make-up time
T "
bFor the back car is braked rise time
T "
aFor front truck is braked rise time
Lm is the minimum spacing of safety shut-down
Sm is unified minimum spacing
Generally speaking, (t
b-t
a), (t "
b-t "
aThe t of)＜＜
1, can ignore, 2 formulas become
S
m=L
m=v
M* t
1(3 formula)
T in 3 formulas
1Relevant with driver's quality, can between 0.8 second-1.2 seconds, determine with different control roads that according to different regions the road that general lorry passes through will be set bigger by fibrous root, the road that only allows car to pass through can be set smaller.
The maximum vehicle flowrate Q=V of bicycle road type car
M/ (S
m+ M), ignoring t
b, t
a, t "
b, t "
aUnder the situation,
Q=1/ (t
1+ M/v
m) (4 formula)
M is a length of wagon in 4 formulas
The maximum vehicle flowrate Q of bicycle road type car is by driver's reaction time t
1, length of wagon M and Maximum speed limit v
MDecision is in road vehicle travels road equipment and method for synchronous synchronously, because driver's reaction time t
1With length of wagon M be objective factor, Maximum speed limit v
MBig more, cart vehicle flowrate Q is just big more.Maximum speed limit v
MShould be according to the slip attachment coefficient decision on road surface.
Maximum vehicle flowrate road equipment of the present invention is to increase following technique measures on the basis of ordinary road:
1, implementing on the road of maximum vehicle flowrate method, all tracks are provided with mobilizable track box stall, forbid vehicle lane change (after implementing synchronously, vehicle need not lane change be overtaken other vehicles);
2, implementing along the road range marker to be set on the road of maximum vehicle flowrate method, allowing driver's perception spacing;
3, on the road of implementing maximum vehicle flowrate method, speed of a motor vehicle monitor and control facility is set, monitoring vehicle speed along the road; The system-wide section is provided with traffic lights and optoelectronic induction delay switch between 15 to 30 meters, delay duration is: long vehicle height degree/synchronous speed, and the induction delay switch has only two states, and a kind of is that red light closes green light and opens, and a kind of is the red light pass of giving the green light;
4, on the road of implementing maximum vehicle flowrate method, the track meet is provided with the timesharing shunting traffic lights;
5, implementing on the road of maximum vehicle flowrate method, do not having current control in 1 to 2 kilometer in the front and back of implementing maximum vehicle flowrate highway section, not so two flow little in the middle of flow very much not get up.
Technical solutions according to the invention are travelled and have been guaranteed the driving order, implement the maximum vehicle flowrate speed of a motor vehicle for the Maximum speed limit in this highway section, unified spacing are the safety shut-down distance of corresponding Maximum speed limit, guarantee the vehicle flowrate maximum, The coast is clear during with assurance wagon flow peak.
Description of drawings
Fig. 1 is Electronic Control synoptic diagram on the synchronous travel of enforcement,
Fig. 2 is means of transportation position figure on the synchronous travel of enforcement,
Road meet green light lamp is provided with planimetric map to Fig. 3 on the synchronous travel in order to implement.
Among the figure, 2-jube post, 3-range marker, 4-shunting traffic lights, 5-photoelectric sensor switch, the synchronous travel of 6-, 7-traffic lights, KT1-delay switch, D-diode, J1-Jn, J are blocked in the separation of 1-track.Contactor.
Embodiment
The maximum vehicle flowrate road equipment of a kind of enforcement increases following technique measures on the basis of ordinary road:
A, implementing on the maximum vehicle flowrate road 6, all tracks are provided with mobilizable track box stall 1, forbid the vehicle lane change;
B, implementing on the maximum vehicle flowrate road range marker 3 to be set along the road, range marker 3 can also can be pointed out Sign Board for the roadside for apply colour band on ground, allows driver's perception spacing;
C, implementing speed of a motor vehicle monitor and control facility to be set, monitoring vehicle speed along the road on the maximum vehicle flowrate road; The system-wide section is provided with traffic lights 7 and optoelectronic induction delay switch 5 between 20 to 30 meters, delay duration is: long vehicle height degree/synchronous speed, the induction delay switch has only two states, a kind of is that red light pass green light is opened, a kind of is the red light pass of giving the green light, each responds to the delay switch control red light that all is connected in parallel, any one switch connection red light will be bright, the electromagnetic induction switch coil of control green light is in parallel with red light, green light extinguished when red light was connected, during vehicle process optoelectronic induction delay switch, blocked light, the action of optoelectronic induction delay switch trigger, if time-delay is still kept off to light, switch motion, all red lights of accident vehicle back are bright on this track along the line, and follow-up vehicle maintains safe distance and stops synchronously on the spot.Physical circuit shows existing expression in the Electronic Control synoptic diagram on the synchronous travel at Fig. 1, as accompanying drawing 1, by photoelectric sensor switch 5 control delay switch KT, delay switch KT control contactor J, all contactor normally closed interlock control green lights are connected on the circuit, normally open contact control red light also is connected in parallel on the circuit, the one end is in parallel with a normally closed interlock, the other end is connected in parallel on the unidirectional power lead of direct current on, the corresponding a pair of photoelectric sensor switch of each group traffic lights 75, a delay switch KT1, contactor J, a diode D.The contrary garage of direct supply direction inserts.In case certain car surpasses time-delay length through the photoelectric sensor switch time on the track, this position delay switch KT action, contactor coil J energising in this position is the contactor action, at this moment all green light circuit of traffic congestion back, position disconnect the connection of red light circuit on this track, be that all green lights of back extinguish red light and light, stop synchronously on the spot to indicate follow-up vehicle.
D, implementing on the maximum vehicle flowrate road, the track meet is provided with timesharing shunting traffic lights 4;
5, implementing on the maximum vehicle flowrate road, do not having current control in 1 to 2 kilometer in the front and back in highway section synchronously.
To implement the present invention at Wuhan Yangtze River Bridge is example, illustrates that application of the present invention can reach maximum vehicle flowrate.
One, determine to implement the length that the present invention needs control section, the longer the better for control section, and too weak point can get lodged in two, and middle vehicle flowrate very much not gets up.The two ends control starting point of Wuhan Yangtze River Bridge should be located near the Qin Tai of Hanyang respectively and big east gate in Wuchang or farther place;
Two, because Wuhan Yangtze River Bridge is unidirectional two-way traffic, and the track is less, support vehicles to advance in order synchronously, the two ends cross street must be carried out regularly shunting in junction Yangtze Bridge porch;
Three, the present Maximum speed limit V limit of Wuhan Yangtze River Bridge is 50km/ hour, and all speed of a motor vehicle by bridge must be controlled at 50km/ hour under the normal condition;
Four, under normal circumstances, all must protect special S by the minimum spacing of big bridge vehicle
m=v
M* t
1, t
1Got minimum spacing S 1 second
m=16.67m/s * 1s=16.67m is set to 18 meters.18 meters is minimum spacings, and under the prerequisite that keeps the unified speed of a motor vehicle, actual vehicle flowrate is during less than maximum vehicle flowrate, and spacing is naturally just greater than minimum spacing.
Five, the system-wide section is provided with traffic lights and photoelectric sensor switch between 20 to 30 meters, in case the car of front stops because of the traffic fault, photoelectric sensor switch moves, and the accident vehicle back is bright along the road red light, and follow-up vehicle maintains safe distance and stops on the spot.Every about 50 meters, speed measuring device is set, to monitoring along road vehicles.A range mark is set every about 18 meters, allows driver's perception spacing.
Wuhan Yangtze River Bridge is implemented vehicle travel synchronously road equipment and method for synchronous, one-lane maximum vehicle flowrate
Qm＝1/(1+M/16.7)，
With the car is example, and M is 4.5 meters, and Qm is 2835/hour.Unidirectional two-way traffic flow is 5670/hour.
Claims (5)
1. maximum vehicle flowrate method is characterized in that:
Be unified in the maximum speed limit of the speed of a motor vehicle of all traveling vehicles on the maximum vehicle flowrate method of the enforcement highway section for this highway section setting; Guaranteeing unified minimum spacing, the i.e. minor increment of the front and back car safety shut-down of the corresponding unified speed of a motor vehicle under the safety condition; The minor increment of front and back car safety shut-down and being provided with according to following mode of the relation of maximum speed limit and maximum vehicle flowrate road equipment are carried out:
The minimum spacing Lm=vm of safety shut-down * [(t1+ (tb-ta)+(t " b-t " a)] (1 formula) is set
Unified minimum spacing Sm=Lm=v is set
m* [(t
1+ (t
b-t
a)+(t "
b-t "
a)] (2 formula)
In the formula: v
mBe maximum speed limit
t
1Be driver's reaction time, 0.3-1.0 second
t
bBe the back car braking gap make-up time
t
aBe the front truck braking gap make-up time
T "
bFor the back car is braked rise time
T "
aFor front truck is braked rise time
Lm is the minimum spacing of safety shut-down
Sm is unified minimum spacing
2. maximum vehicle flowrate method according to claim 1 is characterized in that:
Generally speaking, (t
b-t
a), (t "
b-t "
aThe t of)＜＜
1, can ignore, 2 formulas become
S
m=L
m=v
M* t
1(3 formula)
T in 3 formulas
1Relevant with driver's quality, can between 0.8 second-1.2 seconds, determine with different control roads that according to different regions the road that general lorry passes through will be set bigger by fibrous root, the road that only allows car to pass through can be set smaller.
3. maximum vehicle flowrate method according to claim 1 is characterized in that: the maximum vehicle flowrate Q=V of bicycle road type car
M/ (S
m+ M), ignoring t
b, t
a, t "
b, t "
aUnder the situation,
Q=1/ (t
1+ M/v
m) (4 formula)
M is a length of wagon in 4 formulas.
4. maximum vehicle flowrate method according to claim 1 is characterized in that: implementing on the maximum vehicle flowrate method road, do not having current control in 1 to 2 kilometer in the front and back in this highway section.
5. implement maximum vehicle flowrate road equipment for one kind, it is characterized in that: increase is provided with following facility on the basis of ordinary road:
A, implementing on the maximum vehicle flowrate road, all tracks are provided with mobilizable track box stall, forbid the vehicle lane change;
B, implementing along the road range marker to be set on the maximum vehicle flowrate road, allowing driver's perception spacing;
C, implementing speed of a motor vehicle monitor and control facility to be set, monitoring vehicle speed along the road on the maximum vehicle flowrate road; The system-wide section is provided with traffic lights and optoelectronic induction delay switch between 20 to 30 meters, delay duration is: long vehicle height degree/synchronous speed, the induction delay switch has only two states, a kind of is that red light pass green light is opened, a kind of is the red light pass of giving the green light, each responds to the delay switch control red light that all is connected in parallel, any one switch connection red light will be bright, the electromagnetic induction switch coil of control green light is in parallel with red light, green light extinguished when red light was connected, during vehicle process optoelectronic induction delay switch, blocked light, the action of optoelectronic induction delay switch trigger, if time-delay is still kept off to light, switch motion, all red lights are bright on this track along the line, and follow-up vehicle maintains safe distance and stops synchronously on the spot;
D, implementing on the maximum vehicle flowrate road, the track meet is provided with the timesharing shunting traffic lights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010122375 CN102194314B (en) | 2010-03-08 | 2010-03-08 | Method and road facilities for maximizing traffic flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010122375 CN102194314B (en) | 2010-03-08 | 2010-03-08 | Method and road facilities for maximizing traffic flow |
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| Publication Number | Publication Date |
|---|---|
| CN102194314A true CN102194314A (en) | 2011-09-21 |
| CN102194314B CN102194314B (en) | 2013-08-21 |
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|---|---|---|---|
| CN 201010122375 Expired - Fee Related CN102194314B (en) | 2010-03-08 | 2010-03-08 | Method and road facilities for maximizing traffic flow |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104040607A (en) * | 2012-01-12 | 2014-09-10 | 本田技研工业株式会社 | Synchronized travel assistance device and synchronized travel assistance system |
| CN107004358A (en) * | 2014-12-05 | 2017-08-01 | 奥迪股份公司 | The method for aiding in the vehicle particularly driver of passenger vehicle |
| CN108351219A (en) * | 2016-02-26 | 2018-07-31 | 华为技术有限公司 | Traffic control method and device |
| CN109544946A (en) * | 2019-01-03 | 2019-03-29 | 南京城建隧桥经营管理有限责任公司 | Tunnel real-time monitoring and managing system and its implementation based on vehicle flowrate big data |
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2010
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Patent Citations (5)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104040607A (en) * | 2012-01-12 | 2014-09-10 | 本田技研工业株式会社 | Synchronized travel assistance device and synchronized travel assistance system |
| CN104040607B (en) * | 2012-01-12 | 2016-04-27 | 本田技研工业株式会社 | Synchronous driving assist system and synchronous travel assist system |
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| CN107004358A (en) * | 2014-12-05 | 2017-08-01 | 奥迪股份公司 | The method for aiding in the vehicle particularly driver of passenger vehicle |
| CN108351219A (en) * | 2016-02-26 | 2018-07-31 | 华为技术有限公司 | Traffic control method and device |
| CN108351219B (en) * | 2016-02-26 | 2020-09-11 | 华为技术有限公司 | Traffic control method and device |
| US10943478B2 (en) | 2016-02-26 | 2021-03-09 | Huawei Technologies Co., Ltd. | Traffic control method, and apparatus |
| CN109544946A (en) * | 2019-01-03 | 2019-03-29 | 南京城建隧桥经营管理有限责任公司 | Tunnel real-time monitoring and managing system and its implementation based on vehicle flowrate big data |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102194314B (en) | 2013-08-21 |
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