CN108986455A - The preferential lane the HOV dynamic management-control method of share-car under a kind of car networking environment - Google Patents
The preferential lane the HOV dynamic management-control method of share-car under a kind of car networking environment Download PDFInfo
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- CN108986455A CN108986455A CN201810693142.9A CN201810693142A CN108986455A CN 108986455 A CN108986455 A CN 108986455A CN 201810693142 A CN201810693142 A CN 201810693142A CN 108986455 A CN108986455 A CN 108986455A
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- vehicle
- hov
- lane
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- vehicle flowrate
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
Abstract
The invention discloses a kind of preferential lane the HOV dynamic management-control methods of share-car under car networking environment, including setting HOV lane control boundary, and HOV lane control boundary includes high-mechanic rate vehicle vehicle flowrate, high-mechanic rate vehicle seating capacity and private car vehicle flowrate threshold value；The real-time car networking traffic information of current period is acquired, the value of private car vehicle flowrate under current high-mechanic rate vehicle vehicle flowrate and the vehicle-mounted guest's said conditions of high-mechanic rate is calculated；Compare current private car vehicle flowrate and corresponding private car vehicle flowrate threshold value, if meeting unlocking condition, opens the lane HOV.HOV lane control boundary is arranged in the present invention, opens the lane HOV if meeting unlocking condition with corresponding private car vehicle flowrate threshold value by comparing current private car vehicle flowrate, effectively realizes the control of the lane HOV dynamic and intelligent.
Description
Technical field
The present invention relates to a kind of preferential lane the HOV dynamic management-control methods of share-car under car networking environment, belong to urban transportation
Service technology field.
Background technique
The lane HOV (High Occupancy Vehicle) is that one kind provides right-of-way for high-mechanic rate vehicle and sets
Vertical lane, type of vehicle refer to car more, and vehicle-mounted number refers to 2 people or more more.Currently, the lane HOV have dedicated Lanes or with
Public transportation lane, which such as shares at diversified forms, the lane HOV, can be improved the operational efficiency and service water of public transport or share-car in-trips vehicles
It is flat, attract more people's share-cars to go on a journey, is alleviate urban traffic blocking one to reduce the private car travel amount of low load-carry duty
Item effective measures.
Currently, the use for the lane HOV is mostly arranged using round-the-clock fixed solution, and under car networking environment
Abundant and real time pooling vehicle information the processing of acquisition of information means, implementing dynamic and intelligent control for the lane road HOV will become
May, this will realize the optimal management of path resource.
Summary of the invention
The present invention provides a kind of preferential lane the HOV dynamic management-control methods of share-car under car networking environment, realize road
The control of the lane HOV dynamic and intelligent.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
The preferential lane the HOV dynamic management-control method of share-car, includes the following steps under a kind of car networking environment,
HOV lane control boundary is set, and HOV lane control boundary includes that high-mechanic rate vehicle vehicle flowrate, high-mechanic rate are vehicle-mounted
Guest's number and private car vehicle flowrate threshold value；
The real-time car networking traffic information of current period is acquired, current high-mechanic rate vehicle vehicle flowrate is calculated and high-mechanic rate is vehicle-mounted
The value of private car vehicle flowrate under guest's said conditions；
Compare current private car vehicle flowrate and opens HOV if meeting unlocking condition with corresponding private car vehicle flowrate threshold value
Lane.
When private car vehicle flowrate threshold value is arranged, to be delayed per capita as evaluation index, specific design standard is,
Assuming that high-mechanic rate vehicle vehicle flowrate and high-mechanic rate vehicle seating capacity are certain, private car vehicle flowrate Q is greater than private car
Vehicle flowrate threshold value, the corresponding delay per capita of Q is d1 under the conditions of mixed running, under the conditions of the lane HOV the corresponding delay per capita of Q be
D2, d1 > d2；
Assuming that high-mechanic rate vehicle vehicle flowrate and high-mechanic rate vehicle seating capacity are certain, private car vehicle flowrate Q is equal to private car
Vehicle flowrate threshold value, the corresponding delay per capita of Q is d1 under the conditions of mixed running, under the conditions of the lane HOV the corresponding delay per capita of Q be
D2, d1=d2；
Assuming that high-mechanic rate vehicle vehicle flowrate and high-mechanic rate vehicle seating capacity are certain, private car vehicle flowrate Q is less than private car
Vehicle flowrate threshold value, the corresponding delay per capita of Q is d1 under the conditions of mixed running, under the conditions of the lane HOV the corresponding delay per capita of Q be
D2, d1 < d2.
The formula being delayed per capita is,
D '=(qb×nb×db+qc×nc×dc)/(qb×nb+qc×nc)
Wherein, d ' is error per capita, qbFor high-mechanic rate vehicle vehicle flowrate, nbFor high-mechanic rate vehicle seating capacity, dbFor height
Load-carry duty vehicle average traffic delay, qcFor low load-carry duty vehicle vehicle flowrate, qc=private car vehicle flowrate Q-qb, ncFor the vehicle-mounted visitor of low load-carry duty
Number, dcFor low load-carry duty vehicle average traffic delay.
The formula of average traffic delay is,
D=L/Vq-L/V0
Wherein, d is average traffic delay, and L is standard road section length, VqSections of road speed when for vehicle flowrate being q, V0For difference
Under the conditions of load-carry duty vehicle mixed running, the vehicle free travel speed that intersection signal and website are stopped is considered.
VqAnd V0Formula be,
Vo=L/ (L/Vf+d)
Vq=31/ (1+1.03 (q/c)3.01)
Wherein, VfFor free stream velocity of the vehicle in the case where having no effect, c is road section capacity.
If current private car vehicle flowrate is greater than corresponding private car vehicle flowrate threshold value, judgement meets unlocking condition, opens
The lane HOV is opened, the lane HOV is otherwise not turned on.
Advantageous effects of the invention: HOV lane control boundary is arranged in the present invention, by comparing current private car vehicle
Flow opens the lane HOV if meeting unlocking condition with corresponding private car vehicle flowrate threshold value, and it is dynamic effectively to realize the lane HOV
State is intelligently managed.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is share-car wish histogram；
Fig. 3 is different share-car number histograms；
Fig. 4 is qbIt is delayed per capita under=160veh/h difference driving conditions；
Fig. 5 is qbIt is delayed per capita under=180veh/h difference driving conditions.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, the preferential lane the HOV dynamic management-control method of share-car under a kind of car networking environment, comprising the following steps:
Step 1, HOV lane control boundary is set, and HOV lane control boundary includes high-mechanic rate vehicle vehicle flowrate, high-mechanic
Rate vehicle seating capacity and private car vehicle flowrate threshold value；Wherein high-mechanic rate refers to that share-car number is more than or equal to 2 people.
In traffic flow moving law model, that more classical is BPR (the Bureau of Public of Bureau of Public Roads
Roads) function, i.e. speed flow models, the model reflect the pass of the function between section time of vehicle operation and traffic loading
System, form are expressed as follows:
Tq=T0[1+α(q/c)β] (1)
Wherein, TqLink Travel Time when for vehicle flowrate being q, T0Link Travel Time when for vehicle flowrate being 0, c is section
The traffic capacity, α, β are parameter, and data is needed to be demarcated.
For same traveler, trip distance is the same, therefore formula 1 can be converted into,
Vq=V0[1+α(q/c)β] (2)
Wherein, VqSections of road speed when for vehicle flowrate being q, V0Under the conditions of different bearer rate vehicle mixed running, consider to hand over
The vehicle free travel speed that prong signal and website are stopped；
V0It can be determined according to category of roads, it is as shown in table 1 with specific reference to value.
1 free travel speed recommendation of table
On urban road, V0Mainly have with intersection spacing, website berthing time, signal period duration and split
It closes, can be calculated by the following formula:
Vo=L/ (L/Vf+d) (3)
Wherein, d is average traffic delay, VfFor free stream velocity of the vehicle in the case where having no effect, L is standard road section length.
The α in speed flow models, β are demarcated using least square method, respectively obtain mixed running condition and
Speed flow models under the conditions of the lane HOV are as follows:
Vq=31/ (1+1.03 (q/c)3.01) (4)
Under the conditions of mixed running condition and the lane HOV, model formation be it is the same, difference is only the c under different condition
Value is different.
It can be obtained according to formula 3 and 4, d=L/Vq-L/V0。
For traffic trip personnel, the important indicator of evaluation trip quality is the time of trip, with traffic shape
The variation of state and change, if dividing traffic behavior according to perfect condition and virtual condition, the travel time usually divides
For ideal travel time and practical travel time, the practical travel time generally comprises ideal travel time and delay two parts.Reason
Think that the travel time is only related with trip distance and trip mode, i.e., when one timing of trip distance and mode, the ideal travel time is
Fixed value, however being delayed can be determined by traffic behavior, be continuously increased with the variation of state, with the promotion of state
It reduces, can effectively reflect the operational efficiency of road network.Refer to for this purpose, will be delayed per capita here as the evaluation of road network on-road efficiency
Mark, and to be delayed the installation warrants that minimum target determines the lane HOV per capita.
The formula being delayed per capita are as follows:
D '=(qb×nb×db+qc×nc×dc)/(qb×nb+qc×nc) (5)
Wherein, d ' is error per capita, qbFor high-mechanic rate vehicle vehicle flowrate, nbFor high-mechanic rate vehicle seating capacity, dbFor height
Load-carry duty vehicle average traffic delay, qcFor low load-carry duty vehicle vehicle flowrate, qc=private car vehicle flowrate Q-qb, ncFor the vehicle-mounted visitor of low load-carry duty
Number, relative to high-mechanic ncIt is 1, dcFor low load-carry duty vehicle average traffic delay.
Based on above-mentioned formula, some history car networking traffic informations are acquired, can configure HOV lane control boundary, specifically such as
Under:
According to practical investigation and questionnaire analysis, possesses private car and receive share-car trip accounts for 2/3, be reluctant share-car trip i.e.
The vehicle of low load-carry duty is 1/3.Meanwhile high-mechanic rate vehicle carrying number be 2 people account for 24.56%, 3 people account for 50.30%, 4
24.26,4 people or more that account for of people are 0.89%, and specific share is as shown in Fig. 2 and 3.
History car networking traffic information is as follows: two-way 4 three-lane road, qb=160veh/h, high-mechanic rate vehicle seating capacity
For 3 people, the error per capita under the conditions of under the conditions of the mixed running and lane HOV, building private car vehicle flowrate Q and error per capita are calculated
Curve graph, it is specific as shown in Figure 4.
Two-way 4 three-lane road, qb=180veh/h, high-mechanic rate vehicle seating capacity be 3 people, calculate mixed running under the conditions of
With the error per capita under the conditions of the lane HOV, the curve graph of private car vehicle flowrate Q with error per capita are constructed, it is specific as shown in Figure 5.
Figure 4, it is seen that working as, when high-mechanic rate vehicle seating capacity is 3 people, when private car vehicle flowrate Q is lower than
When 600veh/h, the error per capita under mixed running is less than the error per capita in the lane HOV, therefore, there is no need to that the lane HOV is arranged；
When private car vehicle flowrate Q is more than 600veh/h, the error per capita under mixed running is greater than the error per capita in the lane HOV, therefore,
Need to be arranged the lane HOV；Setting private car vehicle flowrate threshold value is 600veh/h at this time.With in reason Fig. 5 it can be concluded that private car
Vehicle flowrate threshold value is 640veh/h.
Different private car vehicle flowrate threshold values can be obtained under different conditions, it is specific as shown in table 2.
Private car vehicle flowrate threshold value under 2 different condition of table
From Table 2, it can be seen that one timing of high-mechanic rate vehicle vehicle flowrate, different high-mechanic rate vehicle seating capacities corresponding one
Corresponding private car vehicle flowrate threshold value.
As can be seen from Figure 4 and Figure 5, when private car vehicle flowrate threshold value is set, to be delayed per capita as evaluation index, specifically
Design standard are as follows:
Assuming that high-mechanic rate vehicle vehicle flowrate and high-mechanic rate vehicle seating capacity are certain, private car vehicle flowrate Q is greater than private car
Vehicle flowrate threshold value, the corresponding delay per capita of Q is d1 under the conditions of mixed running, under the conditions of the lane HOV the corresponding delay per capita of Q be
D2, d1 > d2；
Assuming that high-mechanic rate vehicle vehicle flowrate and high-mechanic rate vehicle seating capacity are certain, private car vehicle flowrate Q is equal to private car
Vehicle flowrate threshold value, the corresponding delay per capita of Q is d1 under the conditions of mixed running, under the conditions of the lane HOV the corresponding delay per capita of Q be
D2, d1=d2；
Assuming that high-mechanic rate vehicle vehicle flowrate and high-mechanic rate vehicle seating capacity are certain, private car vehicle flowrate Q is less than private car
Vehicle flowrate threshold value, the corresponding delay per capita of Q is d1 under the conditions of mixed running, under the conditions of the lane HOV the corresponding delay per capita of Q be
D2, d1 < d2.
Step 2, the real-time car networking traffic information of current period is acquired, current high-mechanic rate vehicle vehicle flowrate and high-mechanic are calculated
The value of private car vehicle flowrate under the vehicle-mounted guest's said conditions of rate.
Under car networking environment, the letter of car networking traffic in real time such as vehicle location, travel speed, carrying number, approach road
The acquisition multi-pass of breath crosses the equipment such as GPS, RFID.The presence of situations such as because of memory space, data exception, data redundancy, especially
GPS signal is weaker, RFID radio-frequency card and the excessive, wireless transmission error of receiver spacing etc. influence, need to information collected into
The further processing of row such as pretreatment, data cleansing, complete the identification and reparation of information and are carrying out after the completion of identification is repaired
It calculates.
Step 3, more current private car vehicle flowrate and corresponding private car vehicle flowrate threshold value, if meeting unlocking condition,
Open the lane HOV；I.e. if current private car vehicle flowrate is greater than corresponding private car vehicle flowrate threshold value, judgement meets open strip
Part opens the lane HOV, is otherwise not turned on the lane HOV.
HOV lane control boundary is first arranged in the above method, by comparing current private car vehicle flowrate and corresponding private car
Vehicle flowrate threshold value opens the lane HOV if meeting unlocking condition, effectively realizes the control of the lane HOV dynamic and intelligent.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. the preferential lane the HOV dynamic management-control method of share-car under a kind of car networking environment, it is characterised in that: include the following steps,
HOV lane control boundary is set, and HOV lane control boundary includes high-mechanic rate vehicle vehicle flowrate, the vehicle-mounted guest of high-mechanic rate
Several and private car vehicle flowrate threshold value；
The real-time car networking traffic information of current period is acquired, current high-mechanic rate vehicle vehicle flowrate and the vehicle-mounted guest of high-mechanic rate are calculated
The value of private car vehicle flowrate under said conditions；
Compare current private car vehicle flowrate and corresponding private car vehicle flowrate threshold value, if meeting unlocking condition, opens HOV vehicle
Road.
2. the preferential lane the HOV dynamic management-control method of share-car, feature under a kind of car networking environment according to claim 1
Be: when setting private car vehicle flowrate threshold value, to be delayed per capita as evaluation index, specific design standard is,
Assuming that high-mechanic rate vehicle vehicle flowrate and high-mechanic rate vehicle seating capacity are certain, private car vehicle flowrate Q is greater than private car wagon flow
Threshold value is measured, the corresponding delay per capita of Q is d1 under the conditions of mixed running, and the corresponding delay per capita of Q is d2 under the conditions of the lane HOV, d1 >
d2；
Assuming that high-mechanic rate vehicle vehicle flowrate and high-mechanic rate vehicle seating capacity are certain, private car vehicle flowrate Q is equal to private car wagon flow
Threshold value is measured, the corresponding delay per capita of Q is d1 under the conditions of mixed running, and the corresponding delay per capita of Q is d2, d1 under the conditions of the lane HOV
=d2；
Assuming that high-mechanic rate vehicle vehicle flowrate and high-mechanic rate vehicle seating capacity are certain, private car vehicle flowrate Q is less than private car wagon flow
Threshold value is measured, the corresponding delay per capita of Q is d1 under the conditions of mixed running, and the corresponding delay per capita of Q is d2 under the conditions of the lane HOV, d1 <
d2。
3. the preferential lane the HOV dynamic management-control method of share-car, feature under a kind of car networking environment according to claim 1
Be: the formula being delayed per capita is,
D '=(qb×nb×db+qc×nc×dc)/(qb×nb+qc×nc)
Wherein, d ' is error per capita, qbFor high-mechanic rate vehicle vehicle flowrate, nbFor high-mechanic rate vehicle seating capacity, dbFor high-mechanic rate
Vehicle average traffic delay, qcFor low load-carry duty vehicle vehicle flowrate, qc=private car vehicle flowrate Q-qb, ncFor low load-carry duty vehicle seating capacity, dc
For low load-carry duty vehicle average traffic delay.
4. the preferential lane the HOV dynamic management-control method of share-car, feature under a kind of car networking environment according to claim 3
Be: the formula of average traffic delay is,
D=L/Vq-L/V0
Wherein, d is average traffic delay, and L is standard road section length, VqSections of road speed when for vehicle flowrate being q, V0For different bearer
Under the conditions of rate vehicle mixed running, the vehicle free travel speed that intersection signal and website are stopped is considered.
5. the preferential lane the HOV dynamic management-control method of share-car, feature under a kind of car networking environment according to claim 4
It is: VqAnd V0Formula be,
Vo=L/ (L/Vf+d)
Vq=31/ (1+1.03 (q/c)3.01)
Wherein, VfFor free stream velocity of the vehicle in the case where having no effect, c is road section capacity.
6. the preferential lane the HOV dynamic management-control method of share-car, feature under a kind of car networking environment according to claim 1
Be: if current private car vehicle flowrate is greater than corresponding private car vehicle flowrate threshold value, judgement meets unlocking condition, opens
Otherwise the lane HOV is not turned on the lane HOV.
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