System for estimating seaport planning year traffic generative amount based on inverse calculation of goods series

A technology for forecasting system and generation volume, which is applied in traffic flow detection, genetic modeling, etc., and can solve the problems of complex modeling and calibration process and large amount of data.

Active Publication Date: 2009-01-21
TIANJIN MUNICIPAL ENG DESIGN & RES INST
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AI Technical Summary

Problems solved by technology

The above-mentioned traditional "four-stage" road traffic forecasting system cannot be simply applied to the forecasting of road traffic demand inside the seaport. Therefore, a road traffic demand forecasting system must be established for the characteristics of road traffic in the port area.
[0003] In the ...

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  • System for estimating seaport planning year traffic generative amount based on inverse calculation of goods series
  • System for estimating seaport planning year traffic generative amount based on inverse calculation of goods series
  • System for estimating seaport planning year traffic generative amount based on inverse calculation of goods series

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Embodiment Construction

[0056] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0057] figure 1 Shown is the flow chart of the present invention based on cargo category inversion of the seaport planning annual traffic generation forecast system, the logical relationship between the steps is shown in Figure 2, in detail the present invention based on cargo category inversion of the seaport planning year The realization of the traffic generation forecasting system includes the following steps (see figure 1 Steps 101-106 in ):

[0058] 1. Construct the relationship diagram of traffic generation and each traffic characteristic parameter and the traffic flow chart caused by the throughput of each cargo category, and collect the required current traffic characteristic parameters. The current traffic characteristic parameters include: the traffic characteristic parameters of the current container, The traffic characte...

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Abstract

The invention discloses a traffic generation amount prediction system in a seaport planning year based on cargo back stepping, the technical scheme comprises the following steps: 1, a relational graph of a traffic generation amount and various traffic characteristic parameters and a traffic amount flow chart which is led by various cargo throughput are built, and current situation traffic characteristic parameters which are needed are collected. 2, the current situation traffic generation amount of a container truck, a common freight car and a bus is predicted. 3, the predicted current situation traffic generation amount is compared with the traffic generation amount which is obtained based on a current situation traffic investigation. 4, above related parameters are calibrated to obtain a group of best parameter values through a genetic algorithm. 5, prospect factors are comprehensively considered, the current situation traffic characteristic parameters of various cargo are amended, thereby obtaining the traffic characteristic parameters in a planning year. 6, various cargo public road transportation volume, the traffic characteristic parameters in the planning year and the current situation in the planning year of a building area are considered, and the prediction of the traffic generation amount in the planning year is completed based on cargo back stepping traffic amount.

Description

technical field [0001] The invention relates to a method for forecasting seaport road traffic demand by using information technology. Background technique [0002] With the development of the foreign economy, more and more attention has been paid to the planning and construction of seaports. To build a first-class international port, the traffic planning work in the port area must be solved. Traffic forecasting is the key to traffic planning. Is traffic forecasting scientific and accurate? Conformity to reality will directly affect the benefits of the traffic planning system. At present, the most widely used road traffic demand forecasting system is the four-stage traffic demand forecasting system. The input of the "four phases" is external factors such as urban land use, economic and social demographic data, and its prediction is essentially to divide the traffic demand prediction tasks that need to be completed in urban road traffic planning into four sub-tasks to complet...

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Application Information

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IPC IPC(8): G08G1/01G06N3/12
Inventor 白子建徐建平赵建伟王新歧刘润有龚凤刚赵巍黄文代茂华王志华蹇峰李海峰姜长杰李伟刘虹刘大为
Owner TIANJIN MUNICIPAL ENG DESIGN & RES INST
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