Road infrastructure construction project impact evaluation decision support system and method

A technology of road infrastructure and decision support system, applied in the direction of road vehicle traffic control system, traffic control system, instruments, etc., can solve problems such as poor decision support adaptability, and achieve the effect of reducing human and material resources and improving accuracy

Active Publication Date: 2018-07-31
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Purpose of the invention: In order to overcome the deficiencies of the prior art, the present invention provides a decision-making support system for impact evaluation of road infrastructure construction projects. And the problem of poo

Method used

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  • Road infrastructure construction project impact evaluation decision support system and method
  • Road infrastructure construction project impact evaluation decision support system and method
  • Road infrastructure construction project impact evaluation decision support system and method

Examples

Experimental program
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Embodiment 1

[0041] Such as figure 1 , the road infrastructure construction project impact evaluation decision support system involved in the present invention, the system includes a characteristic year OD prediction unit 1, which is used to predict the traffic between each traffic district in the year when the road is opened for new construction and reconstruction and expansion projects according to the growth rate model. EMU traffic trip volume; input unit 2, such as figure 2 , including a construction project input module 21, used to input the current road network map format file selected by the user, a construction project road network map format file, and a characteristic year OD table, and a construction project timing plan input module 22, used to input the current road network selected by the user. Network map format file, characteristic year OD table, map format file and characteristic year OD table of newly added and cleared multiple construction timing schemes;

[0042] The tr...

Embodiment 2

[0051] Such as figure 2 , a road infrastructure construction project impact evaluation decision support method, the method includes the following steps:

[0052] Step 1. Copy the user-specified file, and update the road basic information database and social economic data database. The cycle of road construction projects is short, and the establishment of an updateable database can increase the amount of data and improve the accuracy of model calculation results. Among them, the road basic information database stores map format files. The map format files include the length of all roads in the road network, the capacity value, the design speed and the traffic volume of the investigated road sections to provide data for the subsequent base year OD back-estimation and traffic allocation. The socio-economic data store the GDP and population data of each traffic district over the years to provide basic data for the OD prediction of the characteristic year. The OD basic database ...

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Abstract

The invention discloses a road infrastructure construction project impact evaluation decision support system and method. The system includes a feature year OD prediction unit, an entering unit, a traffic impact analysis unit, a traffic data processing unit and a database editing and viewing unit; the feature year OD prediction unit is used for predicting the vehicle traffic travel volume of roadsaccording to a growth rate model and generating an OD file; the entering unit is used for entering a map format file and a feature year OD table which are selected by a user; the traffic impact analysis unit is used for calculating and displaying the operation conditions of the roads of a global road network and the road network of a main affected area; the traffic data processing unit is used forobtaining the travel volume of roads in the map format file and the OD file; and the database editing and viewing unit is used for entering, storing, updating, and viewing the OD file and the map format file. According to the system and method of the invention, an OD backstepping method is adopted, and therefore, the required traffic flow of important road sections can be conveniently obtained, and human and material resources are greatly reduced; an updateable database is built, the larger the updated data amount of the database is, the more a predicted base year OD travel table conforms toactual traffic travel characteristics; and the accuracy of travel distribution prediction can be improved.

Description

technical field [0001] The invention relates to an impact evaluation decision support system and method, in particular to a road infrastructure construction project impact evaluation decision support system and method. Background technique [0002] The four-stage method, as a traditional method for obtaining travel, attraction, and road network traffic between traffic areas, requires OD surveys, and OD surveys require a lot of manpower and material resources. In actual operation, drivers need to be questioned, which affects traffic. run, and difficult to operate. [0003] The traditional OD survey of the city scale is usually carried out once every 5 or 10 years, and the survey period is long. Especially in the process of construction project impact evaluation and decision support, the OD table of the base year must be obtained frequently, which requires a fast and convenient way to obtain Method for the base year OD table. In cities with rapid development and large change...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/26G08G1/01
CPCG06Q10/06375G06Q10/06393G06Q50/26G08G1/0129G08G1/0137
Inventor 项乔君陈福临郭一凡郑展骥
Owner SOUTHEAST UNIV
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