CN111932034A - Regional multi-standard rail transit train operation scheme compiling method and system - Google Patents
Regional multi-standard rail transit train operation scheme compiling method and system Download PDFInfo
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Abstract
The invention discloses a regional multi-standard rail transit train operation scheme compiling method and a system thereof, wherein the operation scheme compiling method comprises the steps of constructing an objective function taking a passenger congestion coefficient and train operation cost as double targets; determining decision variables and one or more of the following constraints: the method comprises the following steps of passenger travel demand constraint, regional multi-standard rail transit overload rate constraint, train driving frequency range constraint, interval capacity constraint, station capacity constraint and parameter variable constraint. The passenger crowding coefficient and the train running cost are jointly used as dual targets of a running method compiling model to be optimized, and the difference characteristics of regional multi-system rail transit transportation are accurately reflected, so that the running scheme of regional multi-system rail transit is more refined.
Description
Technical Field
The invention belongs to the field of rails, and particularly relates to a method and a system for compiling a running scheme of a regional multi-standard rail transit train.
Background
In recent years, urban rail transit operation mileage and traffic volume are in a high-speed development stage in China, and the conventional rail transit operation method compilation research mainly comprises operation method compilation based on a mathematical method, operation method compilation based on an alternative selection set and operation method compilation of a station-stopping scheme.
And the Yu-HernChang establishes a multi-target linear programming model optimized by the train operation method, the objective function is the minimization of railway operation cost and passenger total time loss, and a fuzzy mathematical programming method is adopted for solving. The indexes that the model can solve comprise an optimal train running method set (comprising a station stopping scheme), train running frequency, the number of motor train units capable of meeting passenger traffic requirements, and the number of passengers between stations of each scheme (see Yu-Hern Chang, Chung-Hsing Yeh, Ching-Cheng Shen. A multiple objective model for passenger train service development: application to a high-speed train line. transportation science.2000.34 (2). 91-106). Chi-Kang LEE pays more attention to The autonomous selection behavior of passengers for transportation Service, and authors establish a double-layer planning model aiming at The design of a train operation method and apply The double-layer planning model to a certain high-speed Railway system (see Chi-Kang LEE, Wen-jin HSIEH.A Demand Oriented Service planning. Process [ A ]. The World Congress On Rail research.2001.55-89.). The method for driving the passenger train related to the passenger special line is researched by the Schwark, the dual benefits of railway enterprises and passengers are considered in the research, and a model is constructed to optimize the driving method (see Schwark, Dengdong wave, Ri Xinhua, Fangqi root. the method for driving the passenger train related to the passenger special line is researched [ J ]. railway bulletin, 2004, (02), 16-20); besides, the historical peak also constructs an evaluation index system of an operation method (Dengdong wave, Scheak. passenger train operation method evaluation index system [ J ] China railway science, 2006, (03), 106-; the objective function of the underlying planning is to minimize the travel time or cost of passengers, and the assignment of passengers to service networks according to utility functions is described as a nonlinear planning problem (see double-layer planning model and algorithm [ J ] of the schmutn, dungeon, holly.
Foreign railway networks are small in scale, and trains mostly adopt a high-frequency and periodic operation mode. Therefore, the most typical method in the research of foreign railway operation methods is a train operation method alternative set generation method, and the method generates an alternative set of operation methods for a research route according to the information of the shortest path and selects an optimal operation method through a certain research target and constraint. Scholl and Schobel studied the Optimization method of the train driving method for the shortest travel Time and the smallest passenger transfer (see Scholl S. Customer-oriented Line Planning. PHD the. university of Kaiserslauter.2005, 23-56, Scholl Bel A, Scholl S. Line Planning with minor conveying Time [ J ]. 2005. and Schobel A. Scholl S. Line Planning with minor conveying Time. in 5th Workshop on integrating methods and Models for timing of Railways, number 06901 in Stuhl train progress, 2006.).
Aiming at the starting method compilation of the side-weight station-stopping scheme, Qi X and Xiong J provide a train starting method optimization method based on a stopping plan under the condition of a passenger special line, and factors such as a train starting station/terminal station, a route, a train grade, the number of trains to be started, the station-stopping plan and the like are considered in a model. The difference between the operating income and the operating cost is taken as an objective function (see Xin Q, Jian X. Optimization method of passer train bed on stop schedule plant for passer determined line [ C ]. International Conference on availability reading & Knowledge Engineering, 2012.). Yang L, Qi J, Li S and Gao Y establish a multi-target mixed integer linear programming model. The model is intended to minimize the total dwell time and total delay between the actual departure time and the predicted departure time for all trains on the high-speed rail corridor (see Yang L, Qi J, Li S, et al. collagen optimization for train scheduling and train stop planning on high-speed-railway railroads [ J ]. Omega, 2016, 64: 57-76.). Luo Q, Hou Y, Li W, Zhang XF propose an integer planning model for train stop plans. A genetic algorithm is used to solve the model aiming at minimizing the total travel time of passengers (see Luo Q, Hou Y, Li W, et al. Stop plan of express and local train for a regional train transfer line [ J ]. Journal of Advanced transfer, 2018, 2018: 1-11.).
The solution of the existing track traffic driving method mainly takes driving cost and trip cost as solution targets, comfort level of passenger trip is considered in trip cost in part of relevant researches, and punishment coefficients are mostly adopted as part of trip cost calculation. The existing operation method can only be well suitable for the single-system track traffic operation method, but the operation method for integrating the multiple-system track traffic operation in the area lacks of differential portraits. Meanwhile, the congestion degree which represents the most important comfort is different in different traveling processes in the area, and the passenger cannot perceive the congestion in multiple traveling links by a single punishment coefficient.
Therefore, how to provide an implementation method that takes into account the congestion factor is becoming an urgent technical problem to be solved.
Disclosure of Invention
Aiming at the problems, the invention discloses a regional multi-standard rail transit train operation scheme compiling method and a system thereof, wherein the operation scheme compiling method gives consideration to both passenger comfort and operation benefit, optimizes the operation scheme and has universality.
The invention aims to provide a method for compiling a running scheme of a regional multi-standard rail transit train, which comprises the following steps of,
constructing an objective function taking the passenger congestion coefficient and the train running cost as double targets;
determining decision variables and one or more of the following constraints:
the method comprises the following steps of passenger travel demand constraint, regional multi-standard rail transit overload rate constraint, train driving frequency range constraint, interval capacity constraint, station capacity constraint and parameter variable constraint.
Further, the running scheme compiling method further comprises the step of inputting the regional rail transit networked candidate set and the inter-block section passenger flow as basic data, wherein the running scheme compiling method comprises the following steps of,
based on the regional rail transit networked alternative collection, a train set, an interval set and a station set of regional multi-standard rail transit are constructed, wherein,
the train set is represented by QRepresenting the first in a train setThe device is similar to a train in the prior art,belonging to the group of Q, wherein the train set comprises L elements;
the interval set is represented by E, the element i represents an interval, i belongs to E, and the interval set comprises M elements;
the station set is represented by S, the element j represents a station, j belongs to S, and the station set has N elements.
Further, the constructing of the objective function with the passenger congestion coefficient and the train running cost as the two targets comprises the objective function with the minimum passenger congestion coefficient as the target and the objective function with the minimum train running cost as the target.
Further, the implementation scheme compiling method further comprises the following steps,
dividing the regional multi-standard rail transit into a type 1 rail transit, a type 2 rail transit and a type 3 rail transit;
calculating the congestion coefficient of any type of rail transit in the regional multi-standard rail transit in an interval i and the congestion coefficient of a station j in the regional multi-standard rail transit based on the regional multi-standard rail transit division;
and acquiring an objective function with the minimum passenger congestion coefficient as a target based on the calculated congestion coefficient of any type of rail transit in the regional multi-system rail transit in the section i and the congestion coefficient of the station j in the regional multi-system rail transit.
Further, the calculating of the congestion coefficients of the type 1 rail traffic and the type 2 rail traffic in the regional multi-standard rail traffic in the section i includes,
acquiring the average effective area of the train and the average passenger carrying number of the train in the interval i;
calculating the per-passenger occupied area of the section i based on the average effective area of the train and the average passenger carrying number of the train in the section i;
and acquiring the congestion coefficients of the type 1 rail traffic and the type 2 rail traffic in the section i based on the occupied area of the passenger in the section i.
Further, the calculating of the congestion coefficient of the type 3 rail transit in the regional multi-standard rail transit in the section i includes,
acquiring passenger volume in the interval i and passenger capacity which can be provided by all trains in the interval i;
acquiring the average full load rate of all trains in the interval i based on the passenger flow in the interval i and the passenger capacity which can be provided by all trains in the interval i;
and averaging the average full load rates of all the trains in the interval i to obtain the congestion coefficient of the 3 rd type track traffic in the interval i.
Further, the calculating of the congestion coefficient of the station j in the regional multi-standard rail transit comprises the following steps,
acquiring a difference value of the passenger flow of the section of the adjacent section of the station j and an exchange passenger flow coefficient of the station j;
solving the product of the difference of the passenger flow of the section of the adjacent section of the station j and the exchange passenger flow coefficient of the station j, and averaging the product to each train passing through the station j to obtain the average exchange passenger flow of the train at the station j;
acquiring the effective area of a station j platform;
the ratio of the effective area of the platform of the station j to the average exchange passenger flow of the train at the station j is obtained, and the occupied area of passengers at the platform of the station j is obtained
And acquiring the congestion coefficient of the station j in the regional multi-standard rail transit based on the occupied area of passengers at the station j.
Further, the objective function targeting the minimum passenger congestion coefficient is:
wherein M is the total number of sections in the regional multi-standard rail transit, N is the total number of stations in the regional multi-standard rail transit, i represents an section, j represents a station,indicates the congestion coefficient of the section i,the cross-sectional passenger flow volume of the section i is shown,represents the average running time of the train in the section i,a congestion coefficient indicating a station j,representing the average exchange passenger flow for each train in station j,represents the average stop time of the train at station j;
the objective function aiming at the minimum train running cost is as follows:
wherein,the first in the multi-standard rail transit of the presentation areaThe device is similar to a train in the prior art,representing trainsThe running frequency of the mobile phone is set,representing trainsThe cost of implementation of (c).
wherein,the congestion coefficient of the k-th type rail transit in the regional multi-standard rail transit in the section i is represented,the number of the variables is 0, 1,indicating that the section i belongs to the kth type of track traffic,and the section i does not belong to the kth type track traffic, and k is 1, 2 and 3.
Further, the congestion coefficients of the type 1 rail traffic and the type 2 rail traffic in the section i satisfy:
wherein,the passenger flow passenger per capita occupation area of the section i is expressed in m2The number of people/person is greater than the number of people,, a parameter representing a linear function of the section congestion coefficient; and the passenger flow in the interval i occupies the area per capitaIs the ratio of the average effective area of the train to the average number of passengers of the train in the section i:
wherein,represents the average effective area of the train in the section i and has the unit of m2;Represents the average number of passengers of the train in the section i, and satisfies the following conditions:
wherein L represents the number of elements in the train set,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,representing trainsThe operating interval does not include the interval i,representing the section passenger flow of the interval i;
the congestion coefficient of the 3 rd type rail traffic in the section i satisfies the following conditions:
wherein,representing the average full load rate of all trains in the interval i; and average full load rate of all trains in section iFor the ratio of the passenger volume in section i to the passenger capacity that can be provided by all trains in section i:
wherein L represents the number of elements in the train set,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,representing trainsThe operating interval does not include the interval i,representing trainsThe order of (1);
the congestion coefficient of a station j in the regional multi-standard rail transit meets the following conditions:
wherein,the passenger's per-capita area, m, of the station platform j2The number of people/person is greater than the number of people,,parameters representing a linear function of the station congestion coefficient; and the passenger of station platform j occupies the areaThe ratio of the effective area of the platform at station j to the average exchange passenger flow of the train at station j is:
wherein,the effective area of the platform of the station j is expressed in m2;The average exchange passenger flow quantity of the trains at the station j is represented, the average exchange passenger flow quantity of the trains at the station j is obtained by multiplying the passenger flow quantity difference of the section of the adjacent section of the station j by the exchange passenger flow coefficient of the station j and averaging the passenger flow quantity difference to each train passing through the station, and the average exchange passenger flow quantity of the trains at the station j meets the following conditions:
wherein,representing the exchange passenger flow coefficient of the station j, M is the number of elements in the interval set, L is the number of elements in the train set,the cross-sectional passenger flow volume of the section i is shown,represents the variables of 0, 1,the starting station of the section i is denoted by j,indicating that the starting station of section i is not j,represents the variables of 0, 1,the end station of the section i is denoted as j,indicating that the end station of the section i is not j,represents the variables of 0, 1,representing trainsThe travel route of (a) includes a station j,indicating that the travel path of train l does not include station j,representing trainsThe running frequency of (c).
Further, the passenger travel demand constraint is as follows:
wherein,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,indicates that the train l operation section does not include the section i,representing trainsThe order of the person(s) to be assigned,representing trainsThe maximum rate of overload that is allowed to occur,and represents the cross-sectional passenger flow volume of the section i.
Further, the regional multi-standard rail transit overload rate constraint is as follows:
further, the train operation frequency range constraint is as follows:
wherein,representing trainsThe running frequency of the mobile phone is set,representing trainsThe minimum running frequency at which the running can be done,representing trainsMaximum run frequency at which a run can be run.
Further, the interval capability constraint is:
wherein,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,representing trainsThe operating interval does not include the interval i,representing trainsThe order of the person(s) to be assigned,representing trainsThe maximum rate of overload that is allowed to occur,the cross-sectional passenger flow volume of the section i is shown,representing the maximum transport capacity of the interval i.
Further, the station capacity constraint is as follows:
wherein,the frequency of operation of the train l is indicated,the number of the variables is 0, 1,representing trainsThe travel route of (a) includes a station j,representing trainsDoes not include the station j in the travel route,representing the maximum transport capacity of station j.
Further, the parameter variable constraint is:
and N is the total number of stations in the regional multi-standard rail transit.
the value range of (A) is the whole natural number,and if not, the type I train is started in the research time period.
Further, the implementation scheme compiling method further comprises the following steps,
respectively solving an objective function with the minimum passenger congestion coefficient as a target and an objective function with the minimum train running cost as a target to respectively obtain corresponding expected values、;
Optimizing an objective function structure, and acquiring a dual-objective mathematical model of comprehensive driving cost and congestion coefficient based on an objective function taking the minimum passenger congestion coefficient as a target and an objective function taking the minimum train driving cost as a target:
wherein p is the p-th priority, q is the q-th objective function,a priority factor representing the p-th priority, weight coefficients representing positive and negative bias variables of different objective functions in the same priority,、a target excess value and a target deficiency value, which are respectively compared with corresponding expected values by a target function with the minimum passenger congestion coefficient as a target and a target function with the minimum train running cost as a target;
giving a priority factor and a weight coefficient to the dual-target mathematical model, and optimizing the dual-target mathematical model as follows:
wherein,an objective function and an expectation value for minimizing the passenger congestion coefficientTarget deficit value of comparison;objective function and expected value with minimum train running cost as targetTarget deficit value of comparison;
building a set of optimization objectivesThe optimization target set respectively meets an objective function taking the minimum passenger congestion coefficient as a target and an objective function taking the minimum train running cost as a target:
wherein,an objective function and an expectation value for minimizing the passenger congestion coefficientTarget excess value of comparison;objective function and expected value with minimum train running cost as targetTarget excess value of comparison;、respectively optimizing the running cost and the congestion coefficient of the double-target mathematical model;
and taking the formulas (3) - (11), (12) - (17) and (19) - (21) as the constraints of the optimized dual-target mathematical model, and solving the optimal solution of the optimized dual-target mathematical model by adopting Global Sever in Lingo.
Further, the starting compilation system comprises,
the construction module is used for constructing an objective function taking the passenger congestion coefficient and the train running cost as double targets;
a determination module for determining a decision variable and one or more of the following constraints:
the method comprises the following steps of passenger travel demand constraint, regional multi-standard rail transit overload rate constraint, train driving frequency range constraint, interval capacity constraint, station capacity constraint and parameter variable constraint.
The method for compiling the regional multi-standard rail transit train running scheme comprehensively considers the benefits of passengers and operators, optimizes the passenger crowding coefficient and the train running cost which are used as double targets of a running method compiling model, accurately reflects the difference characteristics of regional multi-standard rail transit transportation, and enables the running scheme of the regional multi-standard rail transit to be more refined.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a flow chart of a method for compiling a regional multi-standard rail transit train operation scheme in an embodiment of the invention;
FIG. 2 is a diagram illustrating a relationship between a passenger's per-capita occupancy area and a passenger congestion factor according to an embodiment of the present invention;
FIG. 3 is a diagram illustrating a passenger flow difference between immediate zones in an embodiment of the present inventionSchematic analysis of (a);
fig. 4 shows a line schematic diagram of a regional multi-standard rail transit formed by a Chongqing subway No. 5 line south section, a river jumper and a Yukun high-speed Chongqing section in the embodiment of the invention;
fig. 5 is a schematic diagram illustrating a regional multi-standard rail transit train operation scheme compilation system according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the embodiment of the present invention introduces a method for compiling a regional multi-standard rail transit train operation scheme, where the method for compiling the operation scheme includes: firstly, constructing an objective function taking a passenger congestion coefficient and train running cost as double targets; then, decision variables and one or more of the following constraints are determined: the method comprises the following steps of passenger travel demand constraint, regional multi-standard rail transit overload rate constraint, train driving frequency range constraint, interval capacity constraint, station capacity constraint and parameter variable constraint. The congestion coefficient is quantized according to the difference of different rail transit standards in intervals, the passenger congestion degree and the rail transit standard characteristics, the passenger congestion coefficient is used as a main factor influencing the rail transit service level, and the difference characteristics of regional multi-standard rail transit are accurately grasped, so that the benefits of passengers and an operator are comprehensively considered, the passenger congestion coefficient and the train operation cost are jointly used as two targets of a model establishment method for optimizing, the difference characteristics of regional multi-standard rail transit transportation are accurately reflected, and the operation scheme of regional multi-standard rail transit is refined.
In this embodiment, the running scheme compiling method further includes inputting the regional rail transit networked candidate set and the inter-block section passenger flow volume as basic data. Specifically, in the embodiment of the present invention, the elements of the candidate set include: train origin-destination, train path, train speed grade, train consist, etc. And constructing a train set, an interval set and a station set of the regional multi-standard rail transit based on the regional rail transit networked alternative collection. Specifically, each element in the train set represents a class 1 train, each class of train includes a train path (an originating station, a terminating station and all intermediate stations), all sections where the train runs, and a transit time at each station and a running time of each section, and the train set can be represented by Q, wherein a class i train in the train set is represented by an element L, and the set has L elements in total. The interval set is represented by E, wherein an element i represents an interval, i belongs to E, and the set has M elements; the station set is represented by S, the element j represents a station, j belongs to S, and the set has N elements. Preferably, one section in the section set has one type of rail transit corresponding to the section set, and the station in the station set has one type of rail transit corresponding to the section set.
In this embodiment, the constructing of the objective function with the passenger congestion coefficient and the train operation cost as the two objectives includes an objective function with the minimum passenger congestion coefficient as the objective and an objective function with the minimum train operation cost as the objective.
In this embodiment, the running scheme compilation method further includes obtaining an objective function targeting the minimum passenger congestion coefficient, specifically, first, dividing the regional multi-system rail transit into a type 1 rail transit, a type 2 rail transit, and a type 3 rail transit; the regional multi-standard rail transit comprises subways, light rails, trams, urban (suburban) railways, inter-city railways, high-speed railways, ordinary-speed railways and the like, and can be divided into 3 types according to transportation organization characteristics, specifically, as shown in table 1:
TABLE 1 Rail traffic classifications and characteristics for each System
The class 1 rail transit provides high-frequency transportation service, the train running speed is low, the speed per hour is generally not higher than 100km/h (kilometer/hour), passengers do not use a train schedule as guidance when selecting the class of rail transit to go out, and follow the going-to-go travel rule, the class mainly comprises rail transit systems such as subways, light rails and tramcars, the trains are allowed to overtake, and the overtake in partial sections of partial cities even exceeds 20% according to actual operation experience.
The class 2 rail transit mainly comprises urban (suburban) railways and ordinary speed railways, the train running frequency is high, the designed speed is lower than 200km/h, passengers travel according to a train schedule, partial overtaking conditions of the trains are allowed to exist, and the overtaking conditions can be strictly controlled according to a ticketing link.
The 3 rd type rail transit mainly refers to intercity railways and high-speed railways, the train running frequency is high, the speed per hour of the train can reach more than 200km/h, passengers are strictly scheduled to run according to a train schedule, and the condition of overtaking is generally not allowed.
Then, calculating the congestion coefficient of any type of rail transit in the regional multi-standard rail transit in the interval i and the congestion coefficient of the station j in the regional multi-standard rail transit based on the regional multi-standard rail transit division; the passenger crowding coefficient comprises an interval crowding coefficient and a station crowding coefficient, and therefore certain difference exists in crowding perception of different types of rail transit in the traveling process of passengers. Specifically, for trains in the 1 st type rail transit and the 2 nd type rail transit, overtaking is allowed, passengers have strong correlation between the congestion perception in the train and the passenger flow density, and the congestion perception is reflected by the passenger flow density, so that the classification threshold value of uncongested train and congestion in the train is 3.6 persons/m2The threshold for classification of congestion to heavy congestion is 6.2 persons/m2And further, converting the grading threshold value into a passenger per-person occupied area threshold value, wherein 1/3.6=0.278 and 1/6.2=0.161, so that the threshold values of the passenger per-person occupied areas which are not crowded and extremely crowded in the vehicle are respectively 0.278m20.161m and/human2Then, the congestion coefficient can be set as a piecewise function according to the passenger-average occupied area, and as shown in fig. 2, the passenger congestion coefficient satisfies: the average occupied area of passengers is more than or equal to 0.278m2When the passenger is in person, the passenger crowding coefficient is 1, and the average occupied area of the passengers is less than or equal to 0.161m2When people are in person, the crowding coefficient is 0, and passengers all have peopleAnd if the occupied area is between the two, expressing by adopting a linear relation, so that the congestion coefficients of the type 1 rail traffic and the type 2 rail traffic in the section i meet the following conditions:
wherein,the passenger-average occupied area of the section i is expressed in m2The number of people/person is greater than the number of people,,and parameters representing a linear function of the section congestion coefficients. It should be noted that, in the following description,and (1) (2) denotes k =1 or k = 2.
More specifically, the passenger flow passenger per capita occupation area of the section iIs the ratio of the average effective area of the train to the average number of passengers of the train in the section i:
wherein,represents the average effective area of the train in the section i and has the unit of m2;The average number of passengers of the train in the section i, and the average load of the train in the section iThe number of passengersSatisfies the following conditions:
wherein L represents the number of elements in the train set,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,representing trainsThe operating interval does not include the interval i,and represents the cross-sectional passenger flow volume of the section i.
In this embodiment, the train in the 3 rd type rail transit is not allowed to exceed the number, which means that passengers all have seats, the congestion coefficient of the passengers going out is significantly lower than that of the 1 st and 2 nd type rail transit, and the range of the congestion coefficient of the seats in the 3 rd type rail transit is defined as 0-0.5, that is, in the embodiment of the present invention, the maximum congestion coefficient of the 3 rd type rail transit is set to 0.5, the minimum congestion coefficient is set to 0, and the congestion coefficient is in direct proportion to the average full load rate of the train, so that the congestion coefficient of the 3 rd type rail transit in the section i satisfies:
wherein,representing the average loading rate of all trains in interval i. Average full load rate of all trains in interval iFor the ratio of the passenger volume in section i to the passenger capacity that can be provided by all trains in section i:
wherein L represents the number of elements in the train set,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,representing trainsOperating areaThe interval between the first and second frames does not include the interval i,representing trainsThe member of (1).
In the embodiment, the station is most obviously crowded with the platform, the crowding perceptions of passengers at different rail transit platforms are basically similar, and the occupied area of each passenger reflects the service level, so that the crowding coefficients are all represented by the occupied area of each passenger at the platform. The congestion coefficient of the station can be set as a piecewise function according to the passenger average occupancy area of the platform, the congestion coefficient corresponding to the passenger average occupancy area of the platform at the service level E is defined as 1, and the congestion coefficient corresponding to the passenger average occupancy area of the platform at the service level A is defined as 0, namely the passenger average occupancy area of the platform is greater than or equal to 3.247m2When people are in the platform, the crowding coefficient is 0, and the occupied area of passengers in the platform is less than or equal to 0.464m2When people are in use, the congestion coefficient is 1, and if the congestion coefficient is between the two, the linear relation is adopted for expression, so that the congestion coefficient of a station j in the regional multi-standard rail transit meets the following conditions:
wherein,the passenger occupying area of the station platform j is expressed in m2The number of people/person is greater than the number of people,,and parameters representing a linear function of the station congestion coefficient.
Further, the passenger occupation area of the station platform j isThe ratio of the effective area of the platform at station j to the average exchange passenger flow of the train at station j is:
wherein,the effective area of the platform of the station j is expressed in m2;Representing the average number of exchanged traffic for the train at station j. The average exchange passenger flow of the train at the station j is that the difference value of the passenger flow of the section of the adjacent section of the station j is multiplied by the exchange passenger flow coefficient of the station j, and then the average exchange passenger flow of the train at the station j is averaged to each train passing through the station, so that the average exchange passenger flow of the train at the station j meets the following requirements:
wherein,representing the exchange passenger flow coefficient of the station j, M is the number of elements in the interval set, L is the number of elements in the train set,the cross-sectional passenger flow volume of the section i is shown,represents the variables of 0, 1,the starting station of the section i is denoted by j,indicating that the starting station of section i is not j,represents the variables of 0, 1,the end station of the section i is denoted as j,indicating that the end station of the section i is not j,represents the variables of 0, 1,representing trainsThe travel route of (a) includes a station j,representing trainsDoes not include the station j in the travel route,representing trainsThe running frequency of (c).
In the present embodiment, as shown in fig. 3, the passenger flow volume exchanged at station j in a certain period of timeWhen the temperature of the water is higher than the set temperature,difference in passenger flow through immediate vicinityIn connection with, among others,expressed as:
wherein M is the number of elements in the interval set, L is the number of elements in the train set,the cross-sectional passenger flow volume of the section i is shown,represents the variables of 0, 1,the starting station of the section i is denoted by j,indicating that the starting station of section i is not j,represents the variables of 0, 1,the end station of the section i is denoted as j,the end station indicating section i is not j.
Then, based on the calculated congestion coefficient of any one of the regional multi-system rail traffics in the section i and the congestion coefficient of the station j in the regional multi-system rail traffic, an objective function with the minimum passenger congestion coefficient as a target is obtained, specifically, the objective function with the minimum passenger congestion coefficient as a target is as follows:
wherein M is the total number of sections in the regional multi-standard rail transit, N is the total number of stations in the regional multi-standard rail transit, i represents an section, j represents a station,indicates the congestion coefficient of the section i,the cross-sectional passenger flow volume of the section i is shown,represents the average running time of the train in the section i,a congestion coefficient indicating a station j,representing the average exchange passenger flow for each train in station j,representing the average stop time of the train at station j.
Finally, the minimized passenger congestion coefficient can be obtained based on the objective function of the minimized passenger congestion coefficient.
In this embodiment, the minimizing the congestion coefficient of the regional multi-system rail transit passengers further includes obtaining the congestion coefficient of the section i in the regional multi-system rail transit based on the congestion coefficient of any type of rail transit in the regional multi-system rail transit in the section iSatisfies the following conditions:
wherein,the congestion coefficient of the k-th type rail transit in the regional multi-standard rail transit in the section is represented,the number of the variables is 0, 1,indicating that the section i belongs to the kth type of track traffic,and the section i does not belong to the kth type track traffic, and k is 1, 2 and 3.
The method comprises the steps of respectively obtaining congestion coefficients of the section i aiming at different types of rail transit, comprehensively considering the difference of congestion perception of passengers on different types of rail transit in the traveling process, and finally obtaining the congestion coefficients of any section in the regional multi-system rail transit, so that the calculation of the regional multi-system rail transit congestion coefficients is more universal.
In this embodiment, when the section congestion coefficient and the station congestion coefficient are calculated, the passenger flow of the section is evenly distributed to each train, instead of accurately matching the passenger flow of the section to each train.
In this embodiment, an objective function targeting the minimum train operation cost is as follows:
wherein,the first in the multi-standard rail transit of the presentation areaThe device is similar to a train in the prior art,representing trainsThe running frequency of the mobile phone is set,representing trainsThe cost of implementation of (c).
In this embodiment, the decision variable isFrequency of operation of train-like vehicleWhereinthe value range of (A) is the whole natural number,when the train is not in operation, otherwise, the train is in operationThe quasi-train is driven during the study period.
In this embodiment, the passenger travel demand constraint is:
wherein,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,representing trainsThe operating interval does not include the interval i,representing trainsThe order of the person(s) to be assigned,representing trainsThe maximum rate of overload that is allowed to occur,and represents the cross-sectional passenger flow volume of the section i.
Introducing trains in passenger travel demand constraintsThe allowable maximum overload rate fully considers the rail transit with various different standards in the area, and the large difference exists between the ratio of the possibility of the overtaking and the ratio of the overtaking of each type of rail transit train, so that the maximum overload rate is ensuredThe running scheme compiling method is more in line with the regional multi-standard rail traffic characteristics, and the accuracy is higher.
The regional multi-standard rail transit overload rate constraint is as follows:
the train operation frequency range constraint is as follows:
wherein,representing trainsThe running frequency of the mobile phone is set,representing trainsThe minimum running frequency at which the running can be done,representing trainsMaximum run frequency at which a run can be run.
The interval capability constraint is:
wherein,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,indicates that the train l operation section does not include the section i,a member of the train l is shown,representing trainsThe maximum rate of overload that is allowed to occur,the cross-sectional passenger flow volume of the section i is shown,representing the maximum transport capacity of the interval i.
The station capacity constraint is as follows:
wherein,representing trainsThe running frequency of the mobile phone is set,the number of the variables is 0, 1,representing trainsThe travel route of (a) includes a station j,representing trainsDoes not include the station j in the travel route,representing the maximum transport capacity of station j.
The parameter variable constraints are:
wherein,representing trainsThe running frequency of (A) is the total number of stations (namely, the number of elements in a station set) in the regional multi-standard rail transitA number),the number of the variables is 0, 1,indicating that the section i belongs to the kth type of track traffic,indicating that the section i does not belong to the kth class of rail traffic,represents the variables of 0, 1,the starting station of the section i is denoted by j,indicating that the starting station of section i is not j,the variables are 0 and 1, and the variables are,indicates that the train l running section includes a section i,representing trainsThe operating interval does not include the interval i,represents the variables of 0, 1,the travel path representing the train l includes a station j,representing trainsDoes not include the station j in the travel route,represents the variables of 0, 1,the end station of the section i is denoted as j,the end station indicating section i is not j.
Because the regional multi-standard rail transit train operation scheme compilation method is an objective function taking the passenger congestion coefficient and the train operation cost as double targets, namely a double-target planning model, the operation scheme compilation method also comprises the step of solving the objective function taking the passenger congestion coefficient and the train operation cost as the double targets based on a target planning method, and specifically comprises the following steps:
respectively solving an objective function with the minimum passenger congestion coefficient as a target and an objective function with the minimum train running cost as a target to respectively obtain corresponding expected values、. Firstly, the single objective function is optimized and solved to obtain an expected value, namely the optimal target value of each objective function in the starting scheme compiling method under the single objective function.
Optimizing an objective function structure, and acquiring a dual-objective mathematical model of comprehensive driving cost and congestion coefficient based on an objective function taking the minimum passenger congestion coefficient as a target and an objective function taking the minimum train driving cost as a target:
wherein p is the p-th priority, q is the q-th objective function,a priority factor representing the p-th priority,、weight coefficients representing positive and negative bias variables of different objective functions in the same priority,、a target excess value and a target deficiency value, which are respectively compared with corresponding expected values by a target function with the minimum passenger congestion coefficient as a target and a target function with the minimum train running cost as a target;
giving a priority factor and a weight coefficient to the dual-target mathematical model, and optimizing the dual-target mathematical model as follows:
wherein,an objective function and an expectation value for minimizing the passenger congestion coefficientTarget deficit value of comparison;objective function and expected value with minimum train running cost as targetTarget deficit value of comparison; in the embodiment of the invention, the priority factor is 1, and the priority factor is 1 because the operation cost and the congestion coefficient are very important in regional multi-system rail transit operation、Also take 1.
Building a set of optimization objectivesThe optimization target set respectively meets an objective function taking the minimum passenger congestion coefficient as a target and an objective function taking the minimum train running cost as a target:
wherein,an objective function and an expectation value for minimizing the passenger congestion coefficientTarget excess value of comparison;objective function and expected value with minimum train running cost as targetTarget excess value of comparison;、respectively optimizing the running cost and the congestion coefficient of the double-target mathematical model;
and taking the formulas (1) - (8), (11), (13) - (18) and (20) - (22) as the constraints of the optimized dual-target mathematical model, and solving the optimal solution of the optimized dual-target mathematical model by adopting Global Server in Lingo.
Obtaining the optimal solution of the model by adopting Global Server in Lingo; the solution obtained at this time is an optimal solution comprehensively considering the running cost and the congestion coefficient of the running scheme and the guidance of the actual running scheme. Preferably, it can be increased appropriately when solving、Is limited by the value range of (a).
For example, as shown in fig. 4, a regional multi-system rail transit network formed by a south section of a 5th line of a Chongqing subway, a river jumper and a Yukun high-speed Chongqing section is taken as an exemplary illustration.
Specifically, the south section of the Chongqing subway No. 5 line is a type 1 rail transit, the total length is 11.2km (kilometers), the river crossing line is a type 2 rail transit, the total length is 28.22km and the Yukun high-speed railway Chongqing section is a type 3 rail transit total length 100km, wherein the regional multi-standard rail transit network formed by the three sections has 18 stations and 30 sections (up-down lines), and the Chongqing west station and the hop station are multi-standard transfer stations.
The regional multi-standard rail transit network corresponds to 20 trains, wherein 8 trains are stopped at a station and 12 trains are stopped at a large station. The passenger flow in the model adopts peak hour section passenger flow data predicted in the initial stage of each line, namely the section passenger flow in each interval of the peak hour.
The model data is structured based on the selected road network, and the open-line scheme is obtained by respectively adopting Global solution of Lingo with the lowest open-line cost, the lowest congestion coefficient and the optimal solution of double targets, wherein the Lingo is a Solver, and the optimal solution can be obtained by converting model expressions into the language of the Lingo one by one and selecting the Global Solver in the Lingo. Further, the dual-target planning can iterate within 2s to obtain a global optimal solution. At this time, the minimum value of the running cost is 2133.6, and the minimum value of the congestion coefficient is 1384.1, but when one target minimum value is controlled, the opposite one is greatly increased. After the double-target optimization is adopted, the cost and the congestion coefficient are increased, but the cost fluctuation is controlled within 25%, and the congestion coefficient fluctuation is controlled within 35%.
When the minimum cost is taken as a target, the interval loading rate of 13 percent exceeds 1, and the interval loading rate of 40 percent is more than or equal to 0.7. The train obtained by solving when the congestion coefficient is minimum is close to the maximum departure frequency, and the full load rate among most of the trains is lower than 0.5. After the double-target optimization is adopted, the interval full load rate of 13% of the peak hour is between 0.7 and 1, and the interval full load rate of more than half is lower than 0.5.
After the train running cost and the congestion coefficient are comprehensively optimized, 85 trains are run in the rush hour, the average running distance of the trains is reduced to 33.3km, the running frequency is increased, and the train turnover speed is accelerated.
As shown in fig. 5, an embodiment of the present invention further introduces a regional multi-standard rail transit train operation scheme compilation system, where the operation scheme compilation system is capable of performing the regional multi-standard rail transit train operation scheme compilation, and specifically, the operation scheme compilation system includes a construction module and a determination module, where the construction module is configured to construct a target function with a passenger congestion coefficient and a train operation cost as two targets; the determination module is configured to determine a decision variable and one or more of the following constraints: the method comprises the following steps of passenger travel demand constraint, regional multi-standard rail transit overload rate constraint, train driving frequency range constraint, interval capacity constraint, station capacity constraint and parameter variable constraint. The specific content, the decision variables and the one or more constraint conditions for constructing the objective function are all consistent with the content in the above-mentioned implementation compilation, and are not repeated herein.
The method for compiling the regional multi-standard rail transit train running scheme comprehensively considers the benefits of passengers and operators, optimizes the passenger crowding coefficient and the train running cost which are used as double targets of a running method compiling model, accurately reflects the difference characteristics of regional multi-standard rail transit transportation, and enables the running scheme of regional multi-standard rail transit to be more refined.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (19)
1. A method for compiling a running scheme of a regional multi-standard rail transit train is characterized by comprising the following steps of,
constructing an objective function taking the passenger congestion coefficient and the train running cost as double targets;
determining decision variables and one or more of the following constraints:
the method comprises the following steps of passenger travel demand constraint, regional multi-standard rail transit overload rate constraint, train driving frequency range constraint, interval capacity constraint, station capacity constraint and parameter variable constraint.
2. The method for compiling the regional multi-standard rail transit train operation scheme according to claim 1, further comprising inputting regional rail transit networked candidate sets and section cross-section passenger flow as basic data, wherein the method comprises the following steps of,
based on the regional rail transit networked alternative collection, a train set, an interval set and a station set of regional multi-standard rail transit are constructed, wherein,
the train set is represented by QRepresenting the first in a train setThe device is similar to a train in the prior art,belonging to the group of Q, wherein the train set comprises L elements;
the interval set is represented by E, the element i represents an interval, i belongs to E, and the interval set comprises M elements;
the station set is represented by S, the element j represents a station, j belongs to S, and the station set has N elements.
3. The method for making a regional multi-standard rail transit train operation scheme according to claim 2, wherein the constructing of the objective function with the passenger congestion coefficient and the train operation cost as two objectives includes an objective function with the minimum passenger congestion coefficient as an objective and an objective function with the minimum train operation cost as an objective.
4. The method for making a regional multi-standard rail transit train operation scheme according to claim 3, further comprising,
dividing the regional multi-standard rail transit into a type 1 rail transit, a type 2 rail transit and a type 3 rail transit;
calculating the congestion coefficient of any type of rail transit in the regional multi-standard rail transit in an interval i and the congestion coefficient of a station j in the regional multi-standard rail transit based on the regional multi-standard rail transit division;
and acquiring an objective function with the minimum passenger congestion coefficient as a target based on the calculated congestion coefficient of any type of rail transit in the regional multi-system rail transit in the section i and the congestion coefficient of the station j in the regional multi-system rail transit.
5. The method for making a train operation plan for regional multi-standard rail transit according to claim 4, wherein calculating the congestion coefficients of the type 1 rail transit and the type 2 rail transit in the regional multi-standard rail transit at the section i comprises,
acquiring the average effective area of the train and the average passenger carrying number of the train in the interval i;
calculating the per-passenger occupied area of the section i based on the average effective area of the train and the average passenger carrying number of the train in the section i;
and acquiring the congestion coefficients of the type 1 rail traffic and the type 2 rail traffic in the section i based on the occupied area of the passenger in the section i.
6. The method for making a train operation plan for regional multi-standard rail transit according to claim 5, wherein calculating the congestion coefficient of class 3 rail transit in regional multi-standard rail transit in section i comprises,
acquiring passenger volume in the interval i and passenger capacity which can be provided by all trains in the interval i;
acquiring the average full load rate of all trains in the interval i based on the passenger flow in the interval i and the passenger capacity which can be provided by all trains in the interval i;
and averaging the average full load rates of all the trains in the interval i to obtain the congestion coefficient of the 3 rd type track traffic in the interval i.
7. The method for making a train operation plan for regional multi-standard rail transit according to claim 6, wherein calculating the congestion coefficient of a station j in regional multi-standard rail transit comprises,
acquiring a difference value of the passenger flow of the section of the adjacent section of the station j and an exchange passenger flow coefficient of the station j;
solving the product of the difference of the passenger flow of the section of the adjacent section of the station j and the exchange passenger flow coefficient of the station j, and averaging the product to each train passing through the station j to obtain the average exchange passenger flow of the train at the station j;
acquiring the effective area of a station j platform;
obtaining the ratio of the effective area of the platform of the station j to the average exchange passenger flow of the train at the station j, and obtaining the occupied area of passengers at the platform of the station j;
and acquiring the congestion coefficient of the station j in the regional multi-standard rail transit based on the occupied area of passengers at the station j.
8. The method for making a regional multi-standard rail transit train operation scheme according to claim 7, wherein an objective function targeting the minimum passenger congestion coefficient is as follows:
wherein M is the total number of sections in the regional multi-standard rail transit, N is the total number of stations in the regional multi-standard rail transit, i represents an section, j represents a station,indicates the congestion coefficient of the section i,the cross-sectional passenger flow volume of the section i is shown,represents the average running time of the train in the section i,a congestion coefficient indicating a station j,representing the average exchange passenger flow for each train in station j,represents the average stop time of the train at station j;
the objective function aiming at the minimum train running cost is as follows:
9. The method as claimed in claim 8, wherein the congestion coefficient of the section i is calculated by using the track-bound train driving schemeSatisfies the following conditions:
wherein,the congestion coefficient of the k-th type rail transit in the regional multi-standard rail transit in the section i is represented,the number of the variables is 0, 1,indicating that the section i belongs to the kth type of track traffic,and the section i does not belong to the kth type track traffic, and k is 1, 2 and 3.
10. The method for making a train operation scheme for regional multi-standard rail transit according to claim 9, wherein the congestion coefficients of the type 1 rail transit and the type 2 rail transit in the section i satisfy:
wherein,the passenger flow passenger per capita occupation area of the section i is expressed in m2The number of people/person is greater than the number of people,, a parameter representing a linear function of the section congestion coefficient; and the passenger flow in the interval i occupies the area per capitaIs the ratio of the average effective area of the train to the average number of passengers of the train in the section i:
wherein,represents the average effective area of the train in the section i and has the unit of m2;Represents the average number of passengers of the train in the section i, and satisfies the following conditions:
wherein L represents the number of elements in the train set,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,indicates that the train l running section includes a section i,representing trainsThe operating interval does not include the interval i,representing the section passenger flow of the interval i;
the congestion coefficient of the 3 rd type rail traffic in the section i satisfies the following conditions:
wherein,representing the average full load rate of all trains in the interval i; and average full load rate of all trains in section iFor the ratio of the passenger volume in section i to the passenger capacity that can be provided by all trains in section i:
wherein L represents the number of elements in the train set,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,indicates that the train l running section includes a section i,representing trainsThe operating interval does not include the interval i,representing trainsThe order of (1);
the congestion coefficient of a station j in the regional multi-standard rail transit meets the following conditions:
wherein,the passenger's per-capita area, m, of the station platform j2The number of people/person is greater than the number of people,,parameters representing a linear function of the station congestion coefficient; and the passenger of station platform j occupies the areaThe ratio of the effective area of the platform at station j to the average exchange passenger flow of the train at station j is:
wherein,the effective area of the platform of the station j is expressed in m2;The average exchange passenger flow quantity of the trains at the station j is represented, the average exchange passenger flow quantity of the trains at the station j is obtained by multiplying the passenger flow quantity difference of the section of the adjacent section of the station j by the exchange passenger flow coefficient of the station j and averaging the passenger flow quantity difference to each train passing through the station, and the average exchange passenger flow quantity of the trains at the station j meets the following conditions:
wherein,representing the exchange passenger flow coefficient of the station j, M is the number of elements in the interval set, L is the number of elements in the train set,the cross-sectional passenger flow volume of the section i is shown,represents the variables of 0, 1,the starting station of the section i is denoted by j,indicating that the starting station of section i is not j,represents the variables of 0, 1,the end station of the section i is denoted as j,indicating that the end station of the section i is not j,represents the variables of 0, 1,representing trainsThe travel route of (a) includes a station j,indicating that the travel path of train l does not include station j,representing trainsThe running frequency of (c).
11. The method for compiling regional multi-standard rail transit train operation scheme according to any one of claims 1 to 10, wherein the passenger travel demand constraint is as follows:
wherein,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,representing trainsThe operating interval does not include the interval i,representing trainsThe order of the person(s) to be assigned,representing trainsThe maximum rate of overload that is allowed to occur,and represents the cross-sectional passenger flow volume of the section i.
13. the method for compiling a train operation scheme of regional multi-standard rail transit according to claim 12, wherein the train operation frequency range constraint is as follows:
14. The method for compiling a regional multi-standard rail transit train running scheme according to claim 13, wherein the section capacity constraint is as follows:
wherein,representing trainsThe running frequency of the mobile phone is set,the variables are 0 and 1, and the variables are,representing trainsThe operating interval includes an interval i in which,representing trainsThe operating interval does not include the interval i,representing trainsThe order of the person(s) to be assigned,representing trainsThe maximum rate of overload that is allowed to occur,the cross-sectional passenger flow volume of the section i is shown,representing the maximum transport capacity of the interval i.
15. The method for compiling a regional multi-standard rail transit train operation scheme according to claim 14, wherein the station capability constraint is as follows:
wherein,representing trainsThe running frequency of the mobile phone is set,the number of the variables is 0, 1,representing trainsThe travel route of (a) includes a station j,representing trainsDoes not include the station j in the travel route,representing the maximum transport capacity of station j.
17. The method for making a regional multi-standard rail transit train operation scheme according to claim 16, wherein the decision variable is the operation frequency of class I trainsWherein
18. The method for making a regional multi-standard rail transit train operation scheme according to claim 17, further comprising,
respectively solving an objective function with the minimum passenger congestion coefficient as a target and an objective function with the minimum train running cost as a target to respectively obtain corresponding expected values、;
Optimizing an objective function structure, and acquiring a dual-objective mathematical model of comprehensive driving cost and congestion coefficient based on an objective function taking the minimum passenger congestion coefficient as a target and an objective function taking the minimum train driving cost as a target:
wherein p is the p-th priority, q is the q-th objective function,a priority factor representing the p-th priority, weight coefficients representing positive and negative bias variables of different objective functions in the same priority,、a target excess value and a target deficiency value, which are respectively compared with corresponding expected values by a target function with the minimum passenger congestion coefficient as a target and a target function with the minimum train running cost as a target;
giving a priority factor and a weight coefficient to the dual-target mathematical model, and optimizing the dual-target mathematical model as follows:
wherein,an objective function and an expectation value for minimizing the passenger congestion coefficientTarget deficit value of comparison;objective function and expected value with minimum train running cost as targetTarget deficit value of comparison;
building a set of optimization objectivesThe optimization target set respectively meets an objective function taking the minimum passenger congestion coefficient as a target and an objective function taking the minimum train running cost as a target:
wherein,an objective function and an expectation value for minimizing the passenger congestion coefficientTarget excess value of comparison;objective function and expected value with minimum train running cost as targetTarget excess value of comparison;、respectively optimizing the running cost and the congestion coefficient of the double-target mathematical model;
and taking the formulas (3) - (11), (12) - (17) and (19) - (21) as the constraints of the optimized dual-target mathematical model, and solving the optimal solution of the optimized dual-target mathematical model by adopting Global Sever in Lingo.
19. A regional multi-standard rail transit train operation scheme compilation system is characterized by comprising a running compilation system,
the construction module is used for constructing an objective function taking the passenger congestion coefficient and the train running cost as double targets;
a determination module for determining a decision variable and one or more of the following constraints:
the method comprises the following steps of passenger travel demand constraint, regional multi-standard rail transit overload rate constraint, train driving frequency range constraint, interval capacity constraint, station capacity constraint and parameter variable constraint.
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CN116882714B (en) * | 2023-09-07 | 2023-11-28 | 中国铁路设计集团有限公司 | Multi-year intersection integrated scheme programming method considering line network construction time sequence |
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