CN103235861A - Anticipation and evaluation method for implementation of passenger and cargo separating road - Google Patents

Anticipation and evaluation method for implementation of passenger and cargo separating road Download PDF

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CN103235861A
CN103235861A CN2013101723713A CN201310172371A CN103235861A CN 103235861 A CN103235861 A CN 103235861A CN 2013101723713 A CN2013101723713 A CN 2013101723713A CN 201310172371 A CN201310172371 A CN 201310172371A CN 103235861 A CN103235861 A CN 103235861A
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road
passenger
given
flow
lorry
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CN103235861B (en
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龚凤刚
白子建
王新岐
赵巍
柯水平
康娟萍
马红伟
郑利
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Tianjin Municipal Engineering Design and Research Institute
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Tianjin Municipal Engineering Design and Research Institute
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Abstract

The invention belongs to the highway planning and design field and provides an anticipation technology that when a special passenger and cargo separating road is implemented and a comprehensive evaluation method after implementation. According to the technical scheme, an anticipation and evaluation method for the implementation of the passenger and cargo separating road comprises the following steps of performing a method of hierarchical classification of main influence factors in the anticipation technology; building a comparative judgment matrix between a standard layer and a criterion layer; performing a method for determining weight among indexes; and performing a method for determining weight of various influence factors in the anticipation technology and determining a threshold value of passenger and cargo separating implementation. The evaluation method for the implementation of the passenger and cargo separating road employs a road service level and a road accident rate as social benefit indexes and an investment recovery ratio B/C (Benefit/Cost) as an economic benefit index. The anticipation and the evaluation method for the implementation of the passenger and cargo separating road is mainly applied to the highway planning and design.

Description

Passenger-cargo separation road is implemented anticipation and evaluation method
Technical field
The invention belongs to the planning of highways design field, specifically, relate to passenger-cargo separation road and implement anticipation and evaluation method.
Background technology
At present, the transport by road fast development mixes the trade road and can't satisfy quick, convenient, safe, the transportation demand efficiently of passenger and freight, passenger-cargo separation road becomes a kind of development trend, so how to separate, separation condition, how on earth the effect of separation is to separate the key that road is implemented.External research in this respect is more, especially two states of the Texas of the U.S. and Florida, research the earliest is that the road pattern to passenger-cargo separation is analyzed in the Texas3310 engineering, and work out seven kinds of passenger-cargo separation road array configurations that are fit to construction, but this project fails to provide the Rule of judgment of passenger-cargo separation road enforcement and the assessment technique after the enforcement; And the research of Florida Department of Transportation is primarily aimed at the Rule of judgment of implementing passenger-cargo separation road and has set up rounded system, but sets up the appraisement system of implementing and choose which kind of passenger-cargo separation road array configuration; And Texas Department of Transportation has set up complete appraisement system at the implementation benefit of road, but this research lacks enforcement anticipation Study on Technology.The deficiency of comprehensive above research is set up complete anticipation and the appraisement system of a cover in conjunction with road conditions, the traffic characteristics of China.
Practicality and the easy operating of anticipation Technology Need consideration method, with the condition of considering that the most subjective condition is implemented as the passenger-cargo separation road of influence, the factor that has the greatest impact so is road total flow and lorry flow; Also to consider the running status of current road, then choose the road service level; The security of road then is indispensable in the road construction, therefore, adds that the road accident rate is as the attendant effect condition.And in assessment technique, need estimate targetedly at different road schemes, consider the comprehensive of appraisement system, rationally, need carry out social benefit and the two-sided evaluation of economic benefit, wherein social benefit is the lifting of the conevying efficiency brought of road itself, the enhancing of travel safety, therefore, choose the road service level as the index of determining passenger-cargo separation road scheme, and the expectation of people's trip is not only in the security that has promoted road, from another aspect, embody economic benefit, reduced the economic loss that produces owing to traffic hazard, therefore, in evaluation of economic benefit, not only consider the direct yield that road itself brings, also will consider to reduce the income that traffic hazard produces.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art, the anticipation technology when passenger-cargo separate, dedicated road implement is proposed and implement after the thoroughly evaluating method, for this reason, the technical scheme that the present invention takes is, passenger-cargo separation road is implemented anticipation and evaluation method, comprises the steps:
(1) the hierarchical division methods of the major influence factors in the anticipation technology
A. highway section total flow: the load-bearing capacity according to road is carried out grade classification to vehicle flow, and flow is the mixed flow flow herein.When the road flow is 95% when above of road passage capability, given 9 minutes, namely road is implemented passenger-cargo separation influence greatly; When the road flow be road passage capability 85%～95% the time, given 8 minutes; When the road flow be road passage capability 50%～85% the time, given 7 minutes; When the road flow be road passage capability 30%～50% the time, given 4 minutes; When the road flow less than road passage capability 30% the time, given 1 minute;
B. lorry flow: the number percent that accounts for the highway section total flow according to lorry carries out grade classification.When the lorry flow surpass total flow 5% the time, given 9 minutes; When the lorry flow account for total flow 35%～50% between the time, given 8 minutes; When lorry stream 0 amount account for total flow 20%～35% the time, given 7 minutes; When the lorry flow account for total flow 10%～20% the time, given 3 minutes; When the lorry flow less than total flow 10% the time, given 1 minute;
C. road accident rate: the traffic hazard grade classification can be that benchmark is divided according to annual lorry accident rate, when road accident rate during less than the annual accident rate, and given 1 minute; When the road accident rate is suitable with the annual accident rate, given 5 minutes; When accident rate during greater than the annual accident rate, given 9 minutes;
D highway section service level: road service level grade classification can be given a mark according to its varying service level grade, wherein is in given 1 minute of the road of AB grade; Be in given 2 minutes of the road of B grade; Be in given 3 minutes of the road of C level service level; Be in given 7 minutes of the road of D level service level, and be in the given best result of road 9 minutes of E, F grade;
(2) the comparison judgment matrix between structure type formation and rule layer
Determine each factor weight in the anticipation technology according to analytical hierarchy process and expert's scoring, and calculate the possibility that passenger-cargo separation is implemented in the highway section according to each factor self grade classification information summary, anticipation technical pattern is seen Fig. 1.
Table 1 judgment matrix
A B1 B2 B3 B4
B1 1 1/7 1/4 2
B2 7 1 3 8
B3 4 1/3 1 5
B4 1/2 1/8 1/5 1
(3) determine weight method between the index:
N the vectorial normalized arithmetic mean of row of judgment matrix is approximate as weight vectors, that is:
w i = 1 n Σ j = 1 n a ij Σ k = 1 n a kj ( i = 1,2 , · · · , n )
In the formula: w iThe weight of each factor; a IjBe matrix i j number.
Table 2 weight
A B1 B2 B3 B4 Add up to Weight
B1 0.08 0.09 0.06 0.13 0.35 0.09
B2 0.56 0.63 0.67 0.50 2.36 0.59
B3 0.32 0.21 0.22 0.31 1.07 0.27
B4 0.04 0.08 0.04 0.06 0.23 0.06
Add up to 1.00 1.00 1.00 1.00 4.00 1.00
Weight between each index is respectively:
{ω B1,ω B2,ω B3,ω B4}＝(0.09,0.59,0.27,0.06)
ω in the formula B1, ω B2, ω B3, ω B4Be respectively the weight of four kinds of indexs.
The threshold value that the weight of each influence factor of (4) anticipation technology is determined method and implemented passenger-cargo separation is determined
As table 2 as can be known, to implement the integrate score computing formula of passenger-cargo separation as follows for road:
In the formula:
Figure BDA00003171696100023
---implement the integrate score of passenger-cargo separation for road;
ω i---be the weight of i item index;
r Ij---be the score of j grade of i item index;
Calculate the PTS of all roads in the research range according to formula, comprise present situation year and prediction year, that can satisfy following formula in all roads then is judged as passenger-cargo separation road to be selected;
Figure BDA000031716961000312
In the formula: ---prediction year road PTS;
---present situation year the road PTS;
Figure BDA000031716961000310
---implement passenger-cargo separation road anticipation minimum threshold, according to the balance relation of each index, will
Figure BDA000031716961000311
Value is 4;
Passenger-cargo separation road implementation evaluation method: utilize road service level and road accident rate as the social benefit index, utilize investment to reclaim than (B/C) as economic benefits indicator:
(1) road service level
Utilize the VISSIM simulation software to realize the lorry dedicated Lanes traffic capacity, and obtaining to be fit to which kind of road scheme under the lorry traffic capacity basis different lorry ratios of analysis and the total flow;
(2) passenger-cargo separation road reduces road traffic accident rate computing method
Assert that physically-isolated passenger-cargo separation road can reduce 50% of original path traffic hazard, and the physically-isolated road that separates fully can reduce 75% of former traffic hazard.
(3) passenger-cargo separation road economy grading
A. project drops into
At first introduce the cost value of road design proposal, comprise two parts:
C＝C Investment+C Maintenance
Wherein,
C Investment＝c 1+c 2+c 3+c 4
In the formula: c 1---be basic track construction cost;
c 2---the curb construction cost;
c 3---the isolation facility expense;
c 4---the ring road construction cost.
B. project profit
B＝B Travel+C Time+B Crash
B in the formula Travel---the project benefit that cuts operating costs;
C Time---project is saved passenger's time benefit;
B Crash---project reduces the traffic hazard benefit.
C. scheme comparison method
The size of the benefit-cost ratio that produces with project judges that the sort of road scheme is fit to implement more.Formula is as follows:
( B C ) S ≥ ( B C ) M
In the formula: ---be the benefit-cost ratio of separate, dedicated road;
---for mixing the benefit-cost ratio on trade road.
Utilize the VISSIM simulation software to realize the emulation of the lorry dedicated Lanes traffic capacity, concrete implementation method is as follows:
1) calculates based on the lorry dedicated Lanes traffic capacity of VISSIM software
Basic road section capacity is interior maximum flow by the highway section of unit interval, according to definition road section capacity is carried out emulation.Main consideration different terrain conditions, gradient condition, traffic composition and relative scale, car speed, acceleration profile situation, driver characteristics etc. are set up the basic principle highway section, and for satisfying the demand of changing of vehicle, two tracks are elected in the emulation highway section as.
2) scheme comparison of passenger-cargo separation road being implemented by the highway section service level
Be index in the service level with the highway section saturation degree, computing formula is as follows:
δ = v c
δ---be the highway section saturation degree;
V---link flow;
C---road section capacity.
Passenger-cargo separation road separates passenger vehicle dedicated Lanes and lorry dedicated Lanes, and its highway section saturation degree just needs to divide other calculating so; When formulating the road scheme, need to carry out than choosing according to the expectation saturation degree of different tracks combination, thereby select the bigger highway layout scheme of social benefit.
Technical characterstic of the present invention and effect:
The present invention proposes anticipation technology and implementation evaluation technology that passenger-cargo separation road is implemented, by the anticipation technology road being implemented passenger-cargo separation scheme tentatively judges, and the road that filters out is further analyzed, mainly estimate from operational efficiency, security performance and economic benefit three aspects.Be the operational efficiency index with the highway section saturation degree, carry out the road conceptual design with this, road safety is promoted consider in the middle of the economic benefit, finally reclaim final evaluation index as scheme with economic investment.The present invention is one and takes into account anticipation and estimate ambilateral passenger-cargo implementation method of separating, can implement to provide foundation for passenger-cargo separation road.
Description of drawings
Fig. 1 anticipation technical pattern is divided figure.
Fig. 2 lorry lane capacity emulation thinking figure.
Fig. 3 service level emulation thinking figure.
Fig. 4 general structure synoptic diagram of the present invention.
Embodiment
The present invention the anticipation technology when passenger-cargo separate, dedicated road implement is mainly proposed and implement after the thoroughly evaluating method, the method for taking is as follows:
The pre-judging method that 1 passenger-cargo separate, dedicated road is implemented
(1) the hierarchical division methods of the major influence factors in the anticipation technology
A. highway section total flow.Load-bearing capacity according to road is carried out grade classification to vehicle flow, and flow is the mixed flow flow herein.When the road flow is 95% when above of road passage capability, given 9 minutes, namely road is implemented passenger-cargo separation influence greatly; When the road flow be road passage capability 85%～95% the time, given 8 minutes; When the road flow be road passage capability 50%～85% the time, given 7 minutes; When the road flow be road passage capability 30%～50% the time, given 4 minutes; When the road flow less than road passage capability 30% the time, given 1 minute.
B. lorry flow.The number percent that accounts for the highway section total flow according to lorry carries out grade classification.When the lorry flow surpass total flow 5% the time, given 9 minutes; When the lorry flow account for total flow 35%～50% between the time, given 8 minutes; When lorry stream 0 amount account for total flow 20%～35% the time, given 7 minutes; When the lorry flow account for total flow 10%～20% the time, given 3 minutes; When the lorry flow less than total flow 10% the time, given 1 minute.
C. road accident rate.The traffic hazard grade classification can be that benchmark is divided according to annual lorry accident rate.When road accident rate during less than the annual accident rate, given 1 minute; When the road accident rate is suitable with the annual accident rate, given 5 minutes; When accident rate during greater than the annual accident rate, given 9 minutes.
D highway section service level.Road service level grade classification can be given a mark according to its varying service level grade.Wherein be in given 1 minute of the road of AB grade; Be in given 2 minutes of the road of B grade; Be in given 3 minutes of the road of C level service level; Be in given 7 minutes of the road of D level service level, and be in the given best result of road 9 minutes of E, F grade.
(2) the comparison judgment matrix between structure type formation and rule layer
Determine each factor weight in the anticipation technology according to analytical hierarchy process and expert's scoring, and calculate the possibility that passenger-cargo separation is implemented in the highway section according to each factor self grade classification information summary.Anticipation technical pattern is seen Fig. 1
Table 1 judgment matrix
A B1 B2 B3 B4
B1 1 1/7 1/4 2
B2 7 1 3 8
B3 4 1/3 1 5
B4 1/2 1/8 1/5 1
(3) determine weight method between the index:
N the vectorial normalized arithmetic mean of row of judgment matrix is approximate as weight vectors, that is:
w i = 1 n Σ j = 1 n a ij Σ k = 1 n a kj ( i = 1,2 , . . . , n )
Table 2 weight
A B1 B2 B3 B4 Add up to Weight
B1 0.08 0.09 0.06 0.13 0.35 0.09
B2 0.56 0.63 0.67 0.50 2.36 0.59
B3 0.32 0.21 0.22 0.31 1.07 0.27
B4 0.04 0.08 0.04 0.06 0.23 0.06
Add up to 1.00 1.00 1.00 1.00 4.00 1.00
Weight between each index is respectively:
{ω B1,ω B2,ω B3,ω B4}＝(0.09,0.59,0.27,0.06)
The threshold value that the weight of each influence factor of (4) anticipation technology is determined method and implemented passenger-cargo separation is determined
As table as can be known, the integrate score computing formula that road is implemented passenger-cargo separation is as follows:
In the formula:
Figure BDA00003171696100063
---implement the integrate score of passenger-cargo separation for road;
ω i---be the weight of i item index;
r Ij---be the score of j grade of i item index.
Calculate the PTS of all roads in the research range according to formula, comprise present situation year and prediction year.That can satisfy following formula in all roads then is judged as passenger-cargo separation road to be selected.
In the formula:
Figure BDA000031716961000615
---prediction year road PTS;
Figure BDA000031716961000616
---present situation year the road PTS;
Figure BDA000031716961000612
---implement passenger-cargo separation road anticipation minimum threshold, according to the balance relation of each index, will
Figure BDA000031716961000613
Value is 4.
2 passenger-cargo separation road evaluation methods
Passenger-cargo separation road implementation evaluation technology is mainly considered benefit, social benefit and the economic benefit of two aspects.Utilize road service level and road accident rate as the social benefit index, utilize investment to reclaim than (B/C) as economic benefits indicator.Introduce the specific implementation method of three indexs below.
(1) road service level
Main consideration mixes the trade road and separates the difference on service level between the road.From literal analysis, passenger-cargo separation road can promote the overall rate of road, but the concrete index of neither one is judged the space size of its lifting.For the service level of separating road being registered division, utilize the VISSIM simulation software to realize the lorry dedicated Lanes traffic capacity, and obtaining to be fit to which kind of road scheme under the lorry traffic capacity basis different lorry ratios of analysis and the total flow.Concrete implementation method is as follows:
1) calculates based on the lorry dedicated Lanes traffic capacity of VISSIM software
Basic road section capacity is interior maximum flow by the highway section of unit interval, according to definition road section capacity is carried out emulation.Main consideration different terrain conditions, gradient condition, traffic composition and relative scale, car speed, acceleration profile situation, driver characteristics etc. are set up the basic principle highway section, and for satisfying the demand of changing of vehicle, two tracks are elected in the emulation highway section as.The whole thinking of emulation is seen Fig. 2, and simulation result sees Table 3 lorry lane capacities and table 4 lorry track service level grade.
The table 3 lorry special lane traffic capacity
The special-purpose road of table 4 lorry service level grade
Figure BDA00003171696100071
2) scheme comparison of passenger-cargo separation road being implemented by the highway section service level
When the road conceptual design, all can set the expection service quality of road, with the index of road service level as evaluation highway section service quality.The highway section saturation degree then is an important indicator in the service level, and computing formula is as follows:
δ = v c
δ---be the highway section saturation degree;
V---link flow;
C---road section capacity.
Passenger-cargo separation road separates passenger vehicle dedicated Lanes and lorry dedicated Lanes, and its highway section saturation degree just needs to divide other calculating so.When formulating the road scheme, need to carry out than choosing according to the expectation saturation degree of different tracks combination, thereby select the bigger highway layout scheme of social benefit.
The coming year, the highway section running status did not realize by emulation mode, and the emulation thinking is seen Fig. 3.
The contrast of table 5 scheme
Figure BDA00003171696100073
Figure BDA00003171696100081
Table 6
Table 7
Figure BDA00003171696100083
Figure BDA00003171696100091
Annotate, yellow represents four mixed runways; Redness represents three lorry tracks; Green represents two passenger vehicle tracks; Three passenger vehicle tracks of colourless representative or five mixed runways.
(2) passenger-cargo separation road reduces road traffic accident rate computing method
By accident investigation on the U.S. dual combination of the New JerseyTurnpike track is studied, passenger-cargo separation is more remarkable to the lifting effect of road safety, and the amplitude of putting on usually is more than 2 times.Therefore, suppose that physically-isolated passenger-cargo separation road can reduce 50% of original path traffic hazard, and the physically-isolated road that separates fully can reduce 75% of former traffic hazard.
(3) passenger-cargo separation road economy grading
Economic target is the key factor of considering in the road investment construction, and passenger-cargo separate, dedicated road is relatively large with ordinary road phase specific investment, but its benefit the benefit than ordinary road is big equally.Its investment of different highway layout schemes is also corresponding different, and therefore, the present invention does not set up economic target at any project, but to there are differences in the design and the place of yield variance is set up economic investment and reclaimed and compare model.
Under the same services level multiple scheme can be arranged, comprise and separating and two kinds of mixed row, so two kinds of schemes contrasts down, but its economic target preferably scheme be embodiment.Choose economic benefit cost ratio as the index of weighing economic benefit.
Passenger-cargo separate, dedicated road comprises that graticule is divided road and physical isolation.For the road that graticule is divided, it is identical with the design on mixed trade road, except need are set up related management sign and performance, need not extra quarantine measures; And for physically-isolated dedicated Lanes, then need consider the expense of the physical isolation facility that increases newly, set up the expense of curb, land for roads is widened the expense of increase, if the ring road facility of independently coming in and going out arranged, then need in the middle of the every kilometer estimation investment in the equal shunting of ring road expense.
Mix trade road and accommodation road main investment cost difference between the two and be embodied in the design of road, comprise aspects such as Pavement Design thickness, intensity, newly-increased curb, isolation, ring road, sign, graticule.
Certainly, the economic benefit that bring in the separate, dedicated track is considerable equally, and from reducing transportation cost, saving aspects such as passenger's time and reduction traffic hazard, its benefit surpasses mixes the benefit that bring on the trade road.
A. project drops into
The investment of passenger-cargo separation road project is different with the road project investment of mixed trade, if physically-isolated separation road, its Pavement Design is to carry out corresponding design according to the carrying corresponding vehicle, and as condition setting independently during the ring road of gateway, the investment of its correspondence also increases thereupon, simultaneously, the soil space that takies is bigger; But not the physical isolation road then with the investment type on mixed trade road seemingly.
At first introduce the cost value of road design proposal, its capital cost comprises two parts:
C＝C Investment+C Maintenance
Wherein,
C Investment＝c 1+c 2+c 3+c 4
In the formula: c 1---be basic track construction cost;
c 2---the curb construction cost;
c 3---the isolation facility expense;
c 4---the ring road construction cost.
B. project profit
Newly-built road project owing to can improve the traffic condition of original road network, reduce communication project, and the separate, dedicated road is compared with mixed trade road, and the amplitude that reduces traffic hazard is bigger, improves road traffic safety to a great extent.
B＝B Travel+C Time+B Crash
B in the formula Travel---the project benefit that cuts operating costs;
C Time---project is saved passenger's time benefit;
B Crash---project reduces the traffic hazard benefit.
C. scheme comparison method
The size of the benefit-cost ratio that produces with project judges that the sort of road scheme is fit to implement more.Formula is as follows:
( B C ) S ≥ ( B C ) M
In the formula:
Figure BDA00003171696100102
---be the benefit-cost ratio of separate, dedicated road;
Figure BDA00003171696100103
---for mixing the benefit-cost ratio on trade road.

Claims (2)

1. a passenger-cargo separation road is implemented anticipation and evaluation method, it is characterized in that, the pre-judging method that passenger-cargo separate, dedicated road is implemented comprises the steps:
(1) the hierarchical division methods of the major influence factors in the anticipation technology
A. highway section total flow: the load-bearing capacity according to road is carried out grade classification to vehicle flow, and flow is the mixed flow flow herein.When the road flow is 95% when above of road passage capability, given 9 minutes, namely road is implemented passenger-cargo separation influence greatly; When the road flow be road passage capability 85%～95% the time, given 8 minutes; When the road flow be road passage capability 50%～85% the time, given 7 minutes; When the road flow be road passage capability 30%～50% the time, given 4 minutes; When the road flow less than road passage capability 30% the time, given 1 minute;
B. lorry flow: the number percent that accounts for the highway section total flow according to lorry carries out grade classification.When the lorry flow surpass total flow 5% the time, given 9 minutes; When the lorry flow account for total flow 35%～50% between the time, given 8 minutes; When lorry stream 0 amount account for total flow 20%～35% the time, given 7 minutes; When the lorry flow account for total flow 10%～20% the time, given 3 minutes; When the lorry flow less than total flow 10% the time, given 1 minute;
C. road accident rate: the traffic hazard grade classification can be that benchmark is divided according to annual lorry accident rate, when road accident rate during less than the annual accident rate, and given 1 minute; When the road accident rate is suitable with the annual accident rate, given 5 minutes; When accident rate during greater than the annual accident rate, given 9 minutes;
D highway section service level: road service level grade classification can be given a mark according to its varying service level grade, wherein is in given 1 minute of the road of AB grade; Be in given 2 minutes of the road of B grade; Be in given 3 minutes of the road of C level service level; Be in given 7 minutes of the road of D level service level, and be in the given best result of road 9 minutes of E, F grade;
(2) construct the comparison judgment matrix that type formation and rule layer are asked
Determine each factor weight in the anticipation technology according to analytical hierarchy process and expert's scoring, and calculate the possibility that passenger-cargo separation is implemented in the highway section according to each factor self grade classification information summary;
Table 1 judgment matrix
A B1 B2 B3 B4 B1 1 l/7 l/4 2 B2 7 l 3 8 B3 4 l/3 l 5 B4 1/2 l/8 1/5 1
(3) determine weight method between the index:
N the vectorial normalized arithmetic mean of row of judgment matrix is approximate as weight vectors, that is:
w i = 1 n Σ j = 1 n a ij Σ k = 1 n a kj ( i = 1 , 2 , L , n )
In the formula: w iThe weight of each factor; a IjBe matrix i j number;
Table 2 weight
Figure FDA00003171696000012
Figure FDA00003171696000021
Weight between each index is respectively:
{ω B1，ω B2，ω B3，ω B4}=(0.09，0.59,0.27,0.06)
ω in the formula B1, ω B2, ω B3, ω B4Be respectively the weight of four kinds of indexs;
The threshold value that the weight of each influence factor of (4) anticipation technology is determined method and implemented passenger-cargo separation is determined
As table 2 as can be known, to implement the integrate score computing formula of passenger-cargo separation as follows for road:
Figure FDA00003171696000022
In the formula:
Figure FDA00003171696000028
Implement the integrate score of passenger-cargo separation for road; ω iIt is the weight of i item index; r IjIt is the score of j grade of i item index;
Calculate the PTS of all roads in the research range according to formula, comprise present situation year and prediction year, that can satisfy following formula in all roads then is judged as passenger-cargo separation road to be selected;
Figure FDA00003171696000023
In the formula:
Figure FDA00003171696000024
Be prediction year road PTS, Be present situation year road PTS;
Figure FDA00003171696000026
For implementing passenger-cargo separation road anticipation minimum threshold, according to the balance relation of each index, will
Figure FDA00003171696000027
Value is 4;
Passenger-cargo separation road implementation evaluation method: utilize road service level and road accident rate as the social benefit index, utilize investment to reclaim than (B/C) as economic benefits indicator:
(1) road service level
Utilize the VISSIM simulation software to realize the lorry dedicated Lanes traffic capacity, and obtaining to be fit to which kind of road scheme under the lorry traffic capacity basis different lorry ratios of analysis and the total flow;
(2) passenger-cargo separation road reduces road traffic accident rate computing method
Assert that physically-isolated passenger-cargo separation road can reduce 50% of original path traffic hazard, and the physically-isolated road that separates fully can reduce 75% of former traffic hazard.
(3) passenger-cargo separation road economy grading
A. project drops into
At first introduce the cost value of road design proposal, comprise two parts:
C=C Investment+C Maintenance
Wherein,
C Investment=c 1+c 2+c 3+c 4
In the formula: c 1Be basic track construction cost; c 2Be the curb construction cost; c 3Be the isolation facility expense; c 4Be the ring road construction cost.
B. project profit
B=B Travel+C Time+B Crash
B in the formula TravelBe the project benefit that cuts operating costs; C TimeFor project is saved passenger's time benefit; B CrashFor project reduces the traffic hazard benefit.
C. scheme comparison method
The size of the benefit-cost ratio that produces with project judges that the sort of road scheme is fit to implement more.Formula is as follows:
( B C ) S ≥ ( B C ) M
In the formula:
Figure FDA00003171696000032
Benefit-cost ratio for the separate, dedicated road;
Figure FDA00003171696000033
For mixing the benefit-cost ratio on trade road.
2. passenger-cargo separation road as claimed in claim 1 is implemented anticipation and evaluation method, it is characterized in that utilize the VISSIM simulation software to realize the emulation of the lorry dedicated Lanes traffic capacity, concrete implementation method is as follows:
1) calculates based on the lorry dedicated Lanes traffic capacity of VISSIM software
Basic road section capacity is interior maximum flow by the highway section of unit interval, according to definition road section capacity is carried out emulation.Main consideration different terrain conditions, gradient condition, traffic composition and relative scale, car speed, acceleration profile situation, driver characteristics etc. are set up the basic principle highway section, and for satisfying the demand of changing of vehicle, two tracks are elected in the emulation highway section as.
2) scheme comparison of passenger-cargo separation road being implemented by the highway section service level
Be index in the service level with the highway section saturation degree, computing formula is as follows:
δ = v c
δ---be the highway section saturation degree;
V---link flow;
C---road section capacity.
Passenger-cargo separation road separates passenger vehicle dedicated Lanes and lorry dedicated Lanes, and its highway section saturation degree just needs to divide other calculating so; When formulating the road scheme, need to carry out than choosing according to the expectation saturation degree of different tracks combination, thereby select the bigger highway layout scheme of social benefit.
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CN104794919A (en) * 2015-04-28 2015-07-22 辽宁省交通规划设计院 Real-time optimal configuration method for lane resources of multi-lane expressway
CN104794919B (en) * 2015-04-28 2016-03-02 辽宁省交通规划设计院 A kind of autoroute track resource real-time optimization collocation method
CN104900064A (en) * 2015-06-19 2015-09-09 南京全司达交通科技有限公司 Method and system obtaining highway preferably traffic organization mode
CN105355055A (en) * 2015-11-04 2016-02-24 东南大学 Mistakenly-driving vehicle error correction guiding method and system for passenger and cargo separating expressway
CN105355055B (en) * 2015-11-04 2017-06-23 东南大学 A kind of passenger-cargo separate type highway sails vehicle error correction bootstrap technique and system by mistake
CN110335462A (en) * 2019-05-26 2019-10-15 天津市市政工程设计研究院 Autoroute mixed traffic flow Dynamic Separation control method
CN110427671A (en) * 2019-07-21 2019-11-08 天津市市政工程设计研究院 Passenger-cargo separation road transition segment length and lane combination collaborative design method
CN110427671B (en) * 2019-07-21 2023-05-30 天津市政工程设计研究总院有限公司 Combined mode collaborative design method for length of transition section and lane of passenger-cargo separation road
CN110516938A (en) * 2019-08-14 2019-11-29 天津市市政工程设计研究院 A kind of region boycott road demarcation method based on heuritic approach
CN110516938B (en) * 2019-08-14 2023-09-05 天津市政工程设计研究总院有限公司 Regional goods exclusion road demarcating method based on heuristic algorithm
CN113409571A (en) * 2021-05-12 2021-09-17 北京北大千方科技有限公司 Judging method and device for setting bus lane, storage medium and terminal
CN113409571B (en) * 2021-05-12 2022-05-06 北京北大千方科技有限公司 Judging method and device for setting bus lane, storage medium and terminal
CN113807669A (en) * 2021-08-30 2021-12-17 东南大学 Scheme selecting method for modifying urban road intersection passenger-cargo separation system
CN116416806A (en) * 2023-06-12 2023-07-11 天津市政工程设计研究总院有限公司 Intelligent network allies oneself with autopilot freight transportation lane control system

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