Urban road traffic situation assessment system

Abstract

The invention discloses an urban road traffic situation assessment system. The urban road traffic situation assessment system comprises a data acquisition subsystem, a cloud storage subsystem, a traffic situation assessment subsystem and a traffic information issuing subsystem, wherein initial traffic flow information is acquired by the data acquisition subsystem through a GPS floating vehicle and a fixed detector, the initial traffic flow information data is stored in a cloud storage mode by the cloud storage subsystem, management on users of the urban road traffic situation assessment system and the initial traffic flow information is carried out by the cloud storage subsystem, preprocessing on the initial traffic flow information is carried out by the traffic situation assessment subsystem, restoration processing on missed initial traffic flow information within five continuous sampling time segments is carried out, after fusion of the complete traffic flow information and the restored traffic flow information is carried out, a present traffic situation is determined by employing a cloud method and a rough set method, and the present traffic situation is issued to the public by the traffic information issuing subsystem. The urban road traffic situation assessment system has advantages of relatively high reliability, relatively high precision and relatively high real-time performance and is widely applied to traffic assessment.

Description

technical field [0001] The invention relates to evaluation technology, in particular to an evaluation system for urban road traffic situation. Background technique [0002] In recent years, with the development of the economy, the rapid growth of urban car ownership has brought enormous pressure to urban traffic operations, and urban road congestion has become more and more serious. According to statistics, the economic loss caused by traffic congestion in the United States is about 41 billion U.S. dollars every year, and the economic losses caused by traffic congestion in nine major Canadian cities are between 2.3 billion U.S. dollars and 3.7 billion U.S. dollars each year, and so on. Based on these problems, traffic situation assessment has become an urgent problem. [0003] At present, traffic situation assessment has been applied in developed countries and regions at home and abroad. For example, the traffic status assessment based on GPS floating vehicles does not com...

AI Technical Summary

Problems solved by technology

However, this patent application needs to carry out sample training step by step, which makes it have a large amount of calculation and poor real-time performance.

[0005] In the existing technology, the traffic state recognition technology has problems such as poor reliability, accuracy, and real-time performance.

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