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Air-railway combined transportation hub network planning method for field of freight transportation

A network planning and hub technology, applied in the direction of instruments, data processing applications, forecasting, etc., can solve the problems of high cost, no joint transportation of routes and railway resources, and low efficiency

Active Publication Date: 2019-11-29
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the above-mentioned deficiencies in the prior art, the air-rail intermodal transport hub network planning method provided by the present invention for the field of freight transport solves the problem of low efficiency and high cost when using a single air or rail transport of goods, and that there is no systematic integration of air routes and railway resources. Issues with intermodal transport to accommodate different transport environments

Method used

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  • Air-railway combined transportation hub network planning method for field of freight transportation
  • Air-railway combined transportation hub network planning method for field of freight transportation
  • Air-railway combined transportation hub network planning method for field of freight transportation

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Experimental program
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Effect test

Embodiment 1

[0084] Such as figure 1 As shown, a network planning method for air-rail intermodal transport in the field of freight, including the following steps:

[0085] S1. Determine the node cities of the candidate air-rail intermodal transport network, and build an air-rail intermodal composite network according to their geographical locations;

[0086] S2. Use the central node theory to evaluate the node cities in the air-rail combined transport composite network with the transportation distance as the index, and determine the hub cities;

[0087] S3. Predict the air-rail intermodal express delivery volume between OD pairs of node cities in the air-rail intermodal composite network;

[0088] S4. According to the determined hub city and the air-rail intermodal transport express volume between the OD pairs of each node city, aiming at the lowest total operating cost of the air-rail intermodal composite network, construct an air-rail intermodal hub network planning model;

[0089] S5....

Embodiment 2

[0104] Step S3 in the above-mentioned embodiment 1 is specifically:

[0105] S31. According to historical express data, predict the freight sharing rate of air-rail combined transport between any two node cities in the air-rail combined transport composite network through the Logit model;

[0106] S32. According to the relevant index data of the express delivery industry of the node cities, calculate the freight attraction strength between the OD pairs of the node cities in the air-rail combined transport composite network through the gravity model;

[0107] S33. According to the freight sharing rate and freight attraction strength, predict the air-rail intermodal express volume between OD pairs of each node city.

[0108] In the embodiment of the present invention, when determining the freight sharing rate by the Logit model, the key is to determine the linear equation of the characteristic function. In the embodiment of the present invention, in the embodiment of the present...

Embodiment 3

[0149] Based on the above-mentioned content, the express volume between OD pairs of several hub cities and several node cities is obtained, and then based on this, the network planning model of the air-rail intermodal transport hub is constructed and solved; specifically, when constructing the model and solving , transforming the air-rail intermodal transport network design and planning problem into the multimodal transport hub network optimization design problem with known hub candidate sets, which is a typical P-hub median problem.

[0150] The research of multi-level intermodal transport network is usually abstracted as a weighted network graph N=(I, L, H, C), and then the relevant theories of graph theory are used for research. I represents the node set, I={1,2,...,n}; L represents the set of transportation modes. In the study of air-rail intermodal transport, only the main line transportation between major cities is considered, and the distribution and collection transport...

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Abstract

The invention discloses an air-railway combined transportation hub network planning method for the field of freight transportation, and the method builds an air-railway combined transportation composite transportation network through the effective connection of a high-speed rail and an aviation line, integrates the technical advantages and market advantages of a high-speed rail and aviation transportation, and achieves the advantage complementation of the high-speed rail and aviation transportation. From the microcosmic perspective, the service level of the express industry is improved; in themacroscopic aspect, reasonable allocation of transportation resources, improvement of transportation efficiency and structural optimization of a comprehensive transportation system are achieved.

Description

technical field [0001] The invention belongs to the technical field of transportation network design, and in particular relates to a network planning method for an air-rail combined transport hub in the field of freight transport. Background technique [0002] Air-rail combined transport refers to the combined transport mode that combines air transport and railway transport and cooperates with each other. The railway and air lines are effectively connected, and an air-rail intermodal transport network is built to complement the advantages of the two, so as to realize the rational allocation of transportation resources and the improvement of transportation efficiency. The optimization of the comprehensive transportation system structure realizes the regional social and economic development. [0003] The development of air-rail combined transport is an important part and main development direction of my country's transportation system construction. To build an air-rail combin...

Claims

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Application Information

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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/30
CPCG06Q10/04G06Q10/06393G06Q50/40
Inventor 甘蜜张发东张文畅邓余玲钱秋君王铭飞刘晓波
Owner SOUTHWEST JIAOTONG UNIV
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