Road automatic coding system

Abstract

The invention discloses an automatic road coding system, which comprises a city road-network topology generating module, a road-network topology checking and correcting module, an object-level determining module and a code computing and generating module. Firstly, the topology of the road network is established through the city road-network topology generating module according to the original data of the city road network; after that, the road-network topology checking and correcting module performs checking computation and correction on the road-network topology; then, objects to be coded are defined with the object-level determining module; and finally, the codes of each object is computed with the code computing and generating module according to a certain coding rule. The code consists of 16 hexadecimal digits and includes a direction code, an object-level code, a classification code, an index code for overlapping codes, and an augmented code. With the invention, city traffic entities including city roads, road intersections, road traffic facilities, traffic events, etc., can be coded uniformly with the same structure, thereby realizing the information exchange of each subsystem in an intelligent traffic management system.

Description

technical field [0001] The present invention is to establish a set of road automatic coding system suitable for urban roads and traffic management information business needs. The code formulation has the characteristics of standardization, systematization, applicability, stability and uniformity, and is convenient for computer generation. It belongs to the field of information technology . Background technique [0002] In recent years, with the rapid development of economy and society, traffic problems, especially in large and medium-sized cities, have become more and more prominent. On the one hand, the pace of urbanization and urban population growth is accelerating, and the number of urban motor vehicles is increasing rapidly. The construction of road infrastructure cannot meet the growth of traffic demand, causing a series of social problems such as traffic congestion, waste of resources, and environmental pollution. On the other hand, although some major cities have in...

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Problems solved by technology

However, due to different national conditions, foreign work results cannot be directly applied in China

Although there are some coding standards for roads and municipal facilities in China, due to the limitations of the objects these standards face, the uniqueness of the coding cannot be guaranteed, the length of the coding is not uniform, and the complex objects cannot be accurately coded. Standards cannot be applied to urban road traffic management

For example, in the current national standards on road coding, the main description is the coding scheme of roads, and urban roads are very different from roads in terms of quantity and complexity, so the road coding sche

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