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A method and system for national railways to uniformly prepare freight train formation plans

A technology for freight trains and trains, which is applied in the field of computer programs, and can solve problems such as the lack of uniform preparation of freight train marshalling plans

Active Publication Date: 2021-06-15
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no unified plan for the preparation of freight train marshalling plans for the whole railway, and each railway bureau carries out the preparation work separately according to its own characteristics

Method used

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  • A method and system for national railways to uniformly prepare freight train formation plans
  • A method and system for national railways to uniformly prepare freight train formation plans
  • A method and system for national railways to uniformly prepare freight train formation plans

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1: Organize the steps of direct trains starting from station to station on a daily basis:

[0062] Step 1), according to the station-to-station traffic flow, calculate the daily average traffic flow at the loading station (N i ), for N i For the loading station > m, classify the traffic flow according to the arrival station (non-adjacent technical station or non-adjacent section intermediate station in the traffic flow route) N i , the traffic flow N from loading station i to unloading station j can be obtained ij , for N ij ≥m traffic flow research organization planning scheme. m is the number of freight trains compiled.

[0063] Step 2), for N ij ≥m traffic flow for category analysis;

[0064] Generally speaking, bulk goods can be distinguished by category, consignor, and loading location. But as far as a loading station is concerned, it is usually a loading station for bulk cargo of a category. Different consignors may have different loading locatio...

Embodiment 2

[0070] Embodiment 2: according to the calendar start station to station origination through train grouping steps:

[0071] Step 1): Analysis and calculation of the economic benefits of direct train departures according to the calendar

[0072] Step (1): Calculation of reduced truck adaptation costs and truck dwell time costs

[0073] Organize the train operation according to the calendar, because the travel distance of the direct train is extended, the number of technical stations along the way without re-adaptation is increased, and the cost of re-arrangement of freight trains and the cost of dwelling time of freight trains are reduced. If the sum of the two savings is E 节 , it can be expressed as:

[0074]

[0075] In the formula: n i When organizing trains to run according to the calendar, i is the number of trains passing through technical stations along the way without reorganization; m is the number of trains; k i When organizing trains to run according to the cale...

Embodiment 3

[0125] Embodiment 3: according to the calendar start station-to-station short-distance departure direct train marshalling steps

[0126] Step 1), the main points of short-distance departure trains

[0127] Step (1), organize the daily operation of the station-to-station single vehicle flow, that is, start the operation on the specified planned day;

[0128] Step (2), the train runs between departure and arrival stations in the same section or in the same area, and does not pass through a technical station or does not pass through a technical station on the way;

[0129] Step (3), the train is used for the transportation of bulk goods, and the traffic volume of the period (Z=7 days) is greater than or equal to the number of trains compiled.

[0130] According to the key points of the short-distance departure train, the traffic flow table is classified and processed, and the whereabouts of the traffic flow that should be included in the train formation plan can be obtained.

...

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Abstract

The invention relates to a method and system for uniformly formulating a freight train formation plan for national railways, belonging to the technical field of computer programs; including a departure and direct train formation plan, a freight train formation plan at a technical station, and a freight train formation plan preparation system. Part of the marshalling plan of direct trains departing from the loading place: using the organization form from station to station, organize the departure of direct trains departing by day, direct trains departing by calendar, direct trains departing by long-distance by calendar and by day Departure trains for short distances. Part of the marshalling plan for freight trains between technical stations: the hierarchical table calculation method based on the complex road network is adopted. The invention increases the proportion of direct trains departing from the loading place by 10% to 15%, effectively reduces the number of wagon reorganization operations, and for the first time realizes the national technology of 44 marshalling stations participating in the calculation in my country's railways The unified formulation of inter-station freight train marshalling plans has greatly improved the level and efficiency of traffic flow organization.

Description

technical field [0001] The invention relates to a method and a system for uniformly formulating freight train formation plans for national railways, and belongs to the technical field of computer programs. Background technique [0002] The freight train marshalling plan is a technical document of the basic nature of the railway traffic organization work. Correctly compiling and executing the freight train marshalling plan is an important way to give full play to the railway transportation capacity, improve transportation efficiency and meet the needs of the transportation market. [0003] The freight train marshalling plan preparation technology refers to the technology of finding the optimal marshalling scheme through modeling based on a certain optimization goal in the process of preparing the freight train marshalling plan. For a long time, my country's railways have pursued the technical route of compressing the residence time of freight cars and accelerating the turnov...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/30
CPCG06Q10/04G06Q10/0631G06Q50/30
Inventor 胡思继孟德军武旭姜秀山孙健朱涛牛志敏李岚孙子涵
Owner BEIJING JIAOTONG UNIV
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