CN110046824A - A kind of operation Time segments division method of city public traffic circuit - Google Patents
A kind of operation Time segments division method of city public traffic circuit Download PDFInfo
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- CN110046824A CN110046824A CN201910325267.0A CN201910325267A CN110046824A CN 110046824 A CN110046824 A CN 110046824A CN 201910325267 A CN201910325267 A CN 201910325267A CN 110046824 A CN110046824 A CN 110046824A
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Abstract
A kind of operation Time segments division method of city public traffic circuit, the present invention relates to the operation Time segments division methods of public transport line.The purpose of the present invention is to solve existing methods to divide rough, low precision, and divides slow problem.A kind of operation Time segments division method process of city public traffic circuit are as follows: Step 1: investigation public bus network runs basic data；Step 2: the practical time headway based on step 1 statistics public transit vehicle；Step 3: the ridership based on step 2 statistics public bus network；Step 4: determining that public bus network runs Time segments division initial scheme collection based on step 3；Step 5: it is preferred that public bus network operation Time segments division initial scheme collection, obtains optimal public bus network operation Time segments division scheme.The present invention is used for urban traffic control technical field.
Description
Technical field
The invention belongs to urban traffic control technical fields, and in particular to the operation Time segments division side of public transport line
Method.
Background technique
Public transport is the important trip mode of city dweller, and reasonable public traffic vehicles schedule is for improving bus trip side
Formula attraction pushes Sustainable Development of Transportation System to be of great significance.In daily different moments, the passenger flows of public bus network
Amount and the operating status of public transit vehicle have differences, therefore when enterprises of public transport need the service time of route being divided into multiple
Section, and different scheduling schemes is executed in each period.It can be seen that the operation Time segments division of public bus network is to carry out public transport tune
The premise of degree.
Existing public bus network operation Time segments division method can be divided into two classes: (1) method of expertise, i.e., to public bus network
Familiar expert divides the operation period according to personal experience, and this method is relatively coarse, can not precisely hold public affairs
The operation rule of friendship system, causes division result that cannot be optimal.(2) based on the method for GPS data, this method passes through public affairs
Hand over vehicle GPS data acquisition bus operating speed and website berthing time on the line, and with berthing time analogy station
Point ridership, and then consider that operating speed, ridership carry out Time segments division.However in practice website ridership with stop
It is not absolute proportional relation by the time, does not can guarantee to obtain correct division result in this way；And partitioning algorithm is complicated,
Cause division speed slower.
In this case, rule of changing with time by the operation data acquisition volume of the flow of passengers for analyzing public transit system are needed
Rule, and then public bus network operation Time segments division process is established, realize the accurately and fast division to the operation period.
Summary of the invention
The purpose of the present invention is to solve existing methods to divide rough, low precision, and divides slow problem,
And propose a kind of operation Time segments division method of city public traffic circuit.
A kind of operation Time segments division method detailed process of city public traffic circuit are as follows:
Step 1: investigation public bus network runs basic data；
Step 2: the practical time headway based on step 1 statistics public transit vehicle；
Step 3: the ridership based on step 2 statistics public bus network；
Step 4: determining that public bus network runs Time segments division initial scheme collection based on step 3；
Step 5: it is preferred that public bus network operation Time segments division initial scheme collection, obtains the optimal public bus network operation period
Splitting scheme.
The invention has the benefit that
At the time of the every bus that the present invention investigates continuous K working day public bus network A reaches, sails out of each website with
And the number of getting on the bus and get off in each website counts the practical headstock of public transit vehicle based on basic public bus network operation data
When away from, count the ridership of public bus network, determine public bus network run Time segments division initial scheme collection, preferably optimal public transport
Railroad embankment Time segments division scheme realizes the accurately and fast division of operation period, solves existing method and divides rough, low precision,
And divide slow problem.The intelligent level of public transit system not only can be improved in the present invention, can also promote public transport
The science of scheduling scheme reduces passenger's travel time.
Detailed description of the invention
Fig. 1 is flow chart of the present invention.
Specific embodiment
Specific embodiment 1: embodiment is described with reference to Fig. 1, a kind of city public traffic circuit of present embodiment
Operation Time segments division method detailed process are as follows:
Step 1: investigation public bus network runs basic data；
Step 2: the practical time headway based on step 1 statistics public transit vehicle；
Step 3: the ridership based on step 2 statistics public bus network；
Step 4: determining that public bus network runs Time segments division initial scheme collection based on step 3；
Step 5: it is preferred that public bus network operation Time segments division initial scheme collection, obtains the optimal public bus network operation period
Splitting scheme.
Specific embodiment 2: the present embodiment is different from the first embodiment in that, it is investigated in the step 1 public
Intersection road transport row basic data；Detailed process are as follows:
It investigates at the time of the every bus of continuous K working day public bus network A reaches, sails out of each website and every
The number of getting on the bus and get off of a website；
30≤K≤60.
Other steps and parameter are same as the specific embodiment one.
Specific embodiment 3: the present embodiment is different from the first and the second embodiment in that, base in the step 2
In the practical time headway of step 1 statistics public transit vehicle；Detailed process are as follows:
Step 2 one, k-th of working day i-th of calculating plow bus and (i-1)-th bus in the practical vehicle of m-th of website
Head when away fromUnit is the second, and 1≤k≤K, 1 < i≤I, I are the bus time that public bus network A is issued from the starting station daily
Number；
As m=1,
As m >=2,
In formula:
At the time of sailing out of m-th of website for i-th bus of k-th of working day public bus network A；
At the time of sailing out of m-th of website for (i-1)-th bus of k-th of working day public bus network A；
At the time of reaching m-th of website for i-th bus of k-th of working day public bus network A；
At the time of reaching m-th of website for (i-1)-th bus of k-th of working day public bus network A；
Step 2 two, practical time headway of the whole I buses in website m for finding out k-th of working day public bus network A
Minimum value
Other steps and parameter are the same as one or two specific embodiments.
Specific embodiment 4: unlike one of present embodiment and specific embodiment one to three, k-th of work
Make minimum value of the whole I buses in the practical time headway of website m of day public bus network AExpression formula are as follows:
Other steps and parameter are identical as one of specific embodiment one to three.
Specific embodiment 5: unlike one of present embodiment and specific embodiment one to four, the step 3
In based on step 2 statistics public bus network ridership；Detailed process are as follows:
Step 3 one, the compartment for calculating k-th of working day, i-th bus between m-th of website and the m+1 website
Interior number
In formula:WithRespectively indicating k-th of working day i-th plows busThe people that gets on and off of a website；
Step 3 two, the section for calculating k-th of working day, i-th bus between m-th of website and the m+1 website
Accumulate ridership
Step 3 three, k-th of working day i-th of calculating plow the accumulation ridership of the section after bus corrects on route A
Average value xik
In formula: M is the website number on public bus network A.
Step 3 four, the continuous K workaday ridership matrix of building；
It enablesFor continuous K workaday ridership matrixes, xk=(x1k,…,
xik,…,xIkThe ridership set of) ' plowed for k-th of working day all I bus,For real number field；
The frequency of step 3 five, normalization every bus of expression；
I-th bus from starting station frequency be Bi；The earliest frequency of each bus is Bi,min, send out the latest
The vehicle moment is Bi,max, to BiIt is normalized, the value after normalization is usedIt indicates:
Step 3 six, settling time scale vectorAnd
The sum of step 3 seven, calculating continuous K workaday ridership of i-th bus, use yiIt indicates:
Other steps and parameter are identical as one of specific embodiment one to four.
Specific embodiment 6: unlike one of present embodiment and specific embodiment one to five, the step 4
In based on step 3 determine public bus network run Time segments division initial scheme collection；Detailed process are as follows:
Step 4 one sets 3 for the initial value of J；
In formula: J is the class number for dividing the service time of public bus network A；
Step 4 two enables J=J+1；Judge whether J is greater than 11；If so, entering step five；Otherwise four or three are entered step；
The initial value of the number of iterations n is set as 0 by step 4 three；The initial value of the mass center of jth class is set as
Step 4 four calculates β
β=int (I/J) (9)
In formula: int () is the function that rounds up；β is the number of the public transit vehicle in average every class, i.e., average every class fortune
How many time bus in the period sought；
Step 4 five calculates
In formula:For the maximum value of the sum of continuous K workaday ridership of each bus in jth class；
y(j-1)×β+1For the sum of [(j-1) × β+1] time continuous K of bus workaday ridership, y(j-1)×β+2For [(j-1)
The sum of × β+2] time continuous K of bus workaday ridership, yj×βFor (j × β) time bus continuous K working day
The sum of ridership；
Step 4 six is incited somebody to actionConduct at the time of correspondingValue, 1≤j≤J；
Step 4 seven plows bus from starting station frequency according to when formula (10) searching nth iteration i-thIt is affiliated
Classification
In formula:ForWithDistance square,
The mass center of jth class when (n+1)th step 4 eight, calculating iteration
If step 4 nine,And n < 100, then n=n+1, return step four or seven；Otherwise into
Enter step 4 ten；
Step 4 ten, generator matrix HJ, which includes 1 row, J column；I element in matrix is assigned entirely to initial value
0；
Step 4 11 enables i=1；JudgementWhether it is equal toIf so, entering step 42；Otherwise it enters step
44；
Step 4 12 enables i=i+1；Judge whether i is greater than I；If so, entering step 45；Otherwise it enters step
43；
Step 4 13, judgementWhether it is equal toIf so, entering step 42；Otherwise 40 are entered step
Four；
Step 4 14, PJRepresent matrix HJIn be greater than 0 element number；Make element HJ(1,PJ+ 1)=i, enters step
42；
Step 4 15, public bus network service time be divided into J class, the collection of the public transit vehicle number of jth class shares
γ (J, j) is indicated, is calculated φ (J), φ (J) be in all kinds of the sum of every bus continuous K workaday ridership and this
The distance of class mass center cumulative and；
Step 4 16 enters step four or two.
Other steps and parameter are identical as one of specific embodiment one to five.
Specific embodiment 7: unlike one of present embodiment and specific embodiment one to six, the step 4
The mass center of jth class in eightExpression formula are as follows:
In formula: F () is indicative function, and when condition meets in bracket, functional value takes 1, otherwise takes 0.
Other steps and parameter are identical as one of specific embodiment one to six.
Specific embodiment 8: unlike one of present embodiment and specific embodiment one to seven, the step 4
The expression formula of φ (J) in 15 are as follows:
Other steps and parameter are identical as one of specific embodiment one to seven.
Specific embodiment 9: unlike one of present embodiment and specific embodiment one to eight, the step 5
In preferably public bus network run Time segments division initial scheme collection, obtain optimal public bus network operation Time segments division scheme；Specifically
Process are as follows:
Step 5 one calculates
In formula:For the minimum value of the first-order difference ratio of each operation Time segments division scheme, η (J) is φ (J+1) and φ
(J) first-order difference ratio；
Step 5 two,The number of segment when value of corresponding J is the operation of optimal public bus network, uses J*It indicates；J-th of period
First time public transit vehicle number be equal toIt is the at the beginning of j-th of periodPlow the hair of bus
The vehicle moment；
1≤j≤J*。
Other steps and parameter are identical as one of specific embodiment one to eight.
Specific embodiment 10: unlike one of present embodiment and specific embodiment one to nine, the step 5
η (J) expression formula in one are as follows:
Other steps and parameter are identical as one of specific embodiment one to nine.
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 changes and modifications in accordance with the present invention, but these corresponding changes and modifications all should belong to
The protection scope of the appended claims of the present invention.
Claims (10)
1. a kind of operation Time segments division method of city public traffic circuit, it is characterised in that: the method detailed process are as follows:
Step 1: investigation public bus network runs basic data；
Step 2: the practical time headway based on step 1 statistics public transit vehicle；
Step 3: the ridership based on step 2 statistics public bus network；
Step 4: determining that public bus network runs Time segments division initial scheme collection based on step 3；
Step 5: it is preferred that public bus network operation Time segments division initial scheme collection, obtains optimal public bus network operation Time segments division
Scheme.
2. a kind of operation Time segments division method of city public traffic circuit according to claim 1, it is characterised in that: described
Public bus network is investigated in step 1 runs basic data；Detailed process are as follows:
It investigates at the time of the every bus of continuous K working day public bus network A reaches, sails out of each website and at each station
The number of getting on the bus and get off of point.
3. a kind of operation Time segments division method of city public traffic circuit according to claim 1 or claim 2, it is characterised in that:
Practical time headway based on step 1 statistics public transit vehicle in the step 2；Detailed process are as follows:
Step 2 one, k-th of working day i-th of calculating plow bus and (i-1)-th bus in the practical headstock of m-th of website
Away from Unit is the second, and 1≤k≤K, 1 < i≤I, I is the bus number that public bus network A is issued from the starting station daily；
As m=1,
As m >=2,
In formula:
At the time of sailing out of m-th of website for i-th bus of k-th of working day public bus network A；
At the time of sailing out of m-th of website for (i-1)-th bus of k-th of working day public bus network A；
At the time of reaching m-th of website for i-th bus of k-th of working day public bus network A；
At the time of reaching m-th of website for (i-1)-th bus of k-th of working day public bus network A；
Step 2 two, find out whole I time buses of k-th of working day public bus network A website m practical time headway most
Small value
4. a kind of operation Time segments division method of city public traffic circuit according to claim 3, it is characterised in that: described
Minimum value of whole I of k-th of the working day public bus network A buses in the practical time headway of website mExpression formula
Are as follows:
5. a kind of operation Time segments division method of city public traffic circuit according to claim 4, it is characterised in that: described
Ridership based on step 2 statistics public bus network in step 3；Detailed process are as follows:
Step 3 one calculates k-th of working day people in the compartment of i-th bus between m-th of website and the m+1 website
Number
In formula:WithRespectively indicating k-th of working day i-th plows busThe people that gets on and off of a website；
Step 3 two, the section accumulation for calculating k-th of working day, i-th bus between m-th of website and the m+1 website
Ridership
Step 3 three, k-th of working day i-th of calculating plow the flat of the accumulation ridership of the section after bus corrects on route A
Mean value xik
In formula: M is the website number on public bus network A；
Step 3 four, the continuous K workaday ridership matrix of building；
It enablesFor continuous K workaday ridership matrixes, xk=(x1k,…,xik,…,
xIkThe ridership set of) ' plowed for k-th of working day all I bus,For real number field；
The frequency of step 3 five, normalization every bus of expression；
I-th bus from starting station frequency be Bi；The earliest frequency of each bus is Bi,min, when dispatching a car the latest
Carving is Bi,max, to BiIt is normalized, the value after normalization is usedIt indicates:
Step 3 six, settling time scale vector And
The sum of step 3 seven, calculating continuous K workaday ridership of i-th bus, use yiIt indicates:
6. a kind of operation Time segments division method of city public traffic circuit according to claim 5, it is characterised in that: described
Determine that public bus network runs Time segments division initial scheme collection based on step 3 in step 4；Detailed process are as follows:
Step 4 one sets 3 for the initial value of J；
In formula: J is the class number for dividing the service time of public bus network A；
Step 4 two enables J=J+1；Judge whether J is greater than 11；If so, entering step five；Otherwise four or three are entered step；
The initial value of the number of iterations n is set as 0 by step 4 three；The initial value of the mass center of jth class is set as
Step 4 four calculates β
β=int (I/J) (9)
In formula: int () is the function that rounds up；When β is the number of the public transit vehicle in average every class, i.e. average every class operation
How many time bus in section；
Step 4 five calculates
In formula:For the maximum value of the sum of continuous K workaday ridership of each bus in jth class；y(j-1)×β+1It is
The sum of [(j-1) × β+1] time continuous K of bus workaday ridership, y(j-1)×β+2For [(j-1) × β+2] time public transport
The sum of continuous K workaday ridership of vehicle, yj×βFor (j × β) time continuous K of bus workaday ridership it
With；
Step 4 six is incited somebody to actionConduct at the time of correspondingValue, 1≤j≤J；
Step 4 seven plows bus from starting station frequency according to when formula (10) searching nth iteration i-thAffiliated class
Not
In formula:ForWithDistance square,
The mass center of jth class when (n+1)th step 4 eight, calculating iteration
If step 4 nine,And n < 100, then n=n+1, return step four or seven；Otherwise it enters step
40；
Step 4 ten, generator matrix HJ, which includes 1 row, J column；I element in matrix is assigned entirely to initial value 0；
Step 4 11 enables i=1；JudgementWhether it is equal toIf so, entering step 42；Otherwise 40 are entered step
Four；
Step 4 12 enables i=i+1；Judge whether i is greater than I；If so, entering step 45；Otherwise 40 are entered step
Three；
Step 4 13, judgementWhether it is equal toIf so, entering step 42；Otherwise 44 are entered step；
Step 4 14, PJRepresent matrix HJIn be greater than 0 element number；Make element HJ(1,PJ+ 1)=i, enters step 40
Two；
Step 4 15, public bus network service time be divided into J class, the collection of the public transit vehicle number of jth class share γ (J,
J) it indicates, calculates φ (J), φ (J) is the sum of the continuous K of every bus workaday ridership and such mass center in all kinds of
Distance cumulative and；
Step 4 16 enters step four or two.
7. a kind of operation Time segments division method of city public traffic circuit according to claim 6, it is characterised in that: described
The mass center of jth class in step 4 eightExpression formula are as follows:
In formula: F () is indicative function, and when condition meets in bracket, functional value takes 1, otherwise takes 0.
8. a kind of operation Time segments division method of city public traffic circuit according to claim 7, it is characterised in that: described
The expression formula of φ (J) in step 4 15 are as follows:
9. a kind of operation Time segments division method of city public traffic circuit according to claim 8, it is characterised in that: described
Preferred public bus network runs Time segments division initial scheme collection in step 5, obtains optimal public bus network operation Time segments division side
Case；Detailed process are as follows:
Step 5 one calculates
In formula:For the minimum value of the first-order difference ratio of each operation Time segments division scheme, η (J) is φ (J+1) and φ (J)
First-order difference ratio；
Step 5 two,The number of segment when value of corresponding J is the operation of optimal public bus network, uses J*It indicates；The of j-th of period
One time public transit vehicle number is equal toIt is the at the beginning of j-th of periodPlow when dispatching a car of bus
It carves；
1≤j≤J*。
10. a kind of operation Time segments division method of city public traffic circuit according to claim 9, it is characterised in that: institute
State η (J) expression formula in step 5 one are as follows:
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| CN112906983A (en) * | 2021-03-22 | 2021-06-04 | 吉林大学 | Electric bus charging scheme optimization method considering time-of-use electricity price influence |
| CN113053119A (en) * | 2021-03-18 | 2021-06-29 | 重庆交通开投科技发展有限公司 | Round time prediction method based on public transport operation historical data |
| CN113379289A (en) * | 2021-06-25 | 2021-09-10 | 吉林大学 | Opportunity constraint planning-based air conditioner use planning method for electric bus |
| CN113723459A (en) * | 2021-08-01 | 2021-11-30 | 北京工业大学 | Bus operation time interval division and one-way point recommendation method based on time aggregation |
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| CN101615340A (en) * | 2009-07-24 | 2009-12-30 | 北京工业大学 | Real-time information processing method in the bus dynamic dispatching |
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| CN113053119A (en) * | 2021-03-18 | 2021-06-29 | 重庆交通开投科技发展有限公司 | Round time prediction method based on public transport operation historical data |
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| CN113379289A (en) * | 2021-06-25 | 2021-09-10 | 吉林大学 | Opportunity constraint planning-based air conditioner use planning method for electric bus |
| CN113723459A (en) * | 2021-08-01 | 2021-11-30 | 北京工业大学 | Bus operation time interval division and one-way point recommendation method based on time aggregation |
| CN113723459B (en) * | 2021-08-01 | 2024-03-08 | 北京工业大学 | Bus operation time interval division and one-way point recommendation method based on time aggregation |
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