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Road network building and evolving method improving travel efficiency
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A road network and efficiency technology, which is applied in the field of road network construction and evolution to improve travel efficiency, and can solve problems that do not consider the travel efficiency requirements of travelers
Inactive Publication Date: 2015-04-22
CHANGAN UNIV
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Another type of research believes that the formation of the road network follows a certain evolutionary mechanism, and there is an invisible force that dominates the development of the system. Travel Efficiency Requirements
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Embodiment 1
[0091] combine figure 1 , the road network construction evolution method for improving travel efficiency in this embodiment is, a road network construction evolution method for improving travel efficiency, starting from obtaining the minimum travel time, planning the road network construction between cities, nodes represent cities, There are N nodes in total, N is a natural number greater than or equal to 2, with K i and K j Represent any node, i=1,2,3...N, j=1,2,3...N, and i≠j, the method includes the following steps:
[0092] Step 1: Build a road network
[0093] 1.1 Collect travel data of N nodes and calculate node K i with node K j connectivity between , choose a node with K i The most connected node K i.max , connecting node K i with node K i.max get the road ;
[0094] The travel data of the nodes includes:
[0095] E. g : GDP per capita of node g, billions of dollars;
[0163] combine figure 2 Illustrate the implementation example of the present invention: the "city" in this embodiment is the "node".
[0164] There are 8 target cities in this embodiment, and the construction process of this road network will be described in detail below with reference to the accompanying drawings.
[0165] (1) collect and obtain the travel parameter value of 8 cities in the present embodiment, each travel parameter value is shown in Table 1, Table 2 and Table 3;
[0168] Table 2 The number of trips per day in 8 cities
[0169] city number
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3
4
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8
Number of tri...
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Abstract
The invention relates to a road network building and evolving method improving travel efficiency. The method includes the following steps that 1, an initial road network is built with the connection degree between nodes serves as a standard; 2, an update scheme is selected for the built road network, the road network is updated according to the selected scheme, and it is guaranteed that all roads in the updated road network meet the requirements of the three-grade service level. According to the method, travel behaviors of travelers are fully considered, a road network structure and a grade configuration method are disclosed with meeting travel requirements and improving travel efficiency as driving force,, effective road resources can be fully used, and travel time can be shortened to the largest extent.
Description
technical field [0001] The invention belongs to the field of road network planning, and in particular relates to a road network construction evolution method for improving travel efficiency. Background technique [0002] Whether the road network structurelayout is reasonable or not directly affects the overall function of the road network. Therefore, it is necessary to start from the factors that affect the source of traffic supply and discuss the reasonable road network structurelayout. Urban roadtraffic system is a dissipative structural system, and system development is a development process of self-organization and other organization compound effects, which is an irregular and occasional process caused by specific economic, social or political forces. [0003] At present, one type of research on road network structure is mostly discussed from the perspective of establishing an optimization model, such as establishing a road network structure layout optimization with ...
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