A method of constructing electronic map road network based on bus GPS track
An electronic map and trajectory technology, applied in the field of transportation, can solve the problems of difficult line relationship, connection, and difficulty in seeing the overall change of the beyond line.
Active Publication Date: 2022-07-01
江苏南大苏富特智能交通科技有限公司
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Problems solved by technology
As a result, in data analysis, we are always separated by lines, and each analysis needs to generate reports for all lines separately. This method makes it difficult for us to connect the relationship between lines and see the overall changes beyond the lines.
[0003] When we analyzed the traffic conditions of the entire line network, we found that due to the separation of line information, the line network drawn on the map has a large number of overlapping phenomena, and the road conditions of the overlapping road sections are not consistent, because the road sections are divided by stations. , so that the road section may contain multiple road sections and intersections with different road conditions, which brings difficulties to road condition analysis
Method used
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Embodiment Construction
[0050] Below in conjunction with accompanying drawing, the technical scheme of the present invention is described in further detail:
[0051] The basic idea of constructing a road network in the present invention comes from the patent "A Method for Generating Road Condition Information Based on GPS Track Data of Public Transport". connections to represent the entire road network. This method proposes a specific implementation step for the concept of the road network construction, such as figure 1 It can be summarized into four steps:
[0052] Step 1. Find intersection nodes;
[0053] Step 2, connecting intersection nodes to generate road sections;
[0054] Step 3. Merge the road sections with the same name;
[0055] Step 4: Add road section path information.
[0056] First of all, since this research only cares about the roads with buses running, this research uses the existing bus driving data to process the required intersections, obtain their location information and r...
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The invention discloses a method for constructing an electronic map road network based on the GPS track of a bus, and relates to the field of transportation. First, since this research only cares about the roads where the bus travels, the present research uses the existing bus travel data to process the required data. intersections, obtain their location information, road information, and save them as node information; for the same reason, this study only needs roads with buses, so the bus driving data is still used as a reference to find out the connection relationship between nodes, and record them The direction and road name are saved as road section data; for the convenience of management, information such as road speed limit is added uniformly, and the head and tail of the road sections with the same name and direction are combined into a unified road section; finally, the path planning interface of AutoNavi is called, and the start and end of the road section The location information obtains the route information of the road section.
Description
technical field [0001] The invention relates to the technical field of traffic, in particular to a method for constructing an electronic map road network based on a GPS track of a public transport. Background technique [0002] When summarizing and analyzing various bus data, it is often based on lines, such as the time between stations and the whole time of the line in each period. Information such as driving track and departure time are recorded in detail in the bus information database. As a result, in data analysis, we always separate lines, and each analysis needs to generate separate reports for all lines. This method makes it difficult for us to connect the relationship between lines, and it is difficult to see the overall changes beyond the lines. [0003] When we analyzed the traffic conditions of the entire line network, we found that due to the separation of line information, the line network drawn on the map appeared a lot of overlapping, and the road conditions...
Claims
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IPC IPC(8): G08G1/0969G06F16/29G08G1/123
CPCG08G1/123G08G1/0969G06F16/29
Inventor 张道林陈万江王传星何春明计佳王逸翔
Owner 江苏南大苏富特智能交通科技有限公司