Abstract:

This paper presents an entity construction method that considers both geometric connectivity and name consistency. Firstly, the entity construction principle of urban roads is described. Secondly, the normalized geometric connectivity degree measurement method based on inverse proportion function and the name matching degree measurement method based on semantic segmentation are proposed. Finally, through intersection extraction, comprehensive matching degree calculation, segment matching, segment connection and lane borrowing processing, a complete process of urban road entity construction is realized. The accuracy of this method is verified by a concrete construction experiment taking the main urban area of Zhengzhou as the experimental area. The experimental results show that the overall accuracy of the entity matching algorithm for road segment is 99.89%.

Key words: urban roads, geographical entity, geometric connectivity, name consistency