Construction method of refueling accessibility index for urban traffic road network
A technology of road network and urban traffic, which is applied in the field of construction of refueling reachability index of urban traffic road network, and can solve problems such as construction
Inactive Publication Date: 2018-03-27
郑州天赐北斗导航技术有限公司
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Problems solved by technology
At present, there is no method for constructing such a refueling reachability index at any position on the road in the navigation equipment and various mobile terminal applications on the market, as well as related literature.
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Embodiment Construction
[0036] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0037] combine figure 1 As shown, the construction method of the refueling accessibility index of the urban traffic road network includes the following steps:
[0038] a. Obtain the nearest neighbor section data of each refueling station in the road network by implementing projection calculation;
[0039] This step a specifically includes:
[0040] a1. Define the number of refueling stations as m; determine an adjacent range of the data of the jth refueling station: the coordinates of the refueling station are P j , calculated with P j is a square R with a center side length of 200 meters; where, the initial value of j is 1, and 1≤j≤m;
[0041] a2. Take out the shape point coordinate sequence of the road section E from the road network data, which are respectively p[0], p[1]...p[n], wherein the starting node of E is v, and the ending node is...
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The invention discloses a refuel reachable index construction method for an urban traffic road network. The refuel reachable index construction method includes steps: a, carrying out projection calculation to obtain nearest neighbor road section data of each gas station in the road network; b, obtaining data of one position mark point at intervals of 100m in each road section in the road network; c, calculating the nearest neighbor road section data, obtained at the step a, of the gas stations and the data, obtained at the step b, of the position mark points to obtain refuel reachable indexes of all position mark points in the road network; d, calculating according to the refuel reachable indexes, generated at the step c, of all position mark points in the road network to obtain refuel reachable indexes of any position in the road network. According to the refuel reachable index construction method, difficulty level of reaching to the gas stations from any position in the road network can be calculated. The refuel reachable index construction method can be applied to a navigation data generation process and is beneficial to improvement of application functionality of road data for meeting vehicle refuel requirements.
Description
technical field [0001] The invention belongs to the field of navigation and positioning and intelligent transportation, and in particular relates to a method for constructing a refueling accessibility index of an urban traffic road network, which is suitable for measuring the difficulty of reaching a refueling / gas station at any position on the road. Background technique [0002] With the rapid development of my country's economy, the number of cars in cities has increased significantly year by year, and the energy service function of refueling / gas stations in urban road traffic has become increasingly prominent. Vehicles driving in the urban traffic road network have the problem of the difficulty of refueling. Measuring the difficulty of refueling on such roads has practical significance for both drivers and enterprises that belong to refueling / gas stations. The so-called refueling accessibility index is a measure of the difficulty of reaching a gas station at any location...
Claims
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IPC IPC(8): G01C21/34
CPCG01C21/3476
Inventor 曾喆万佳馨邹海翔张彤刘善伟
Owner 郑州天赐北斗导航技术有限公司