城市道路交通流实时数据质量控制技术

Real-time Data Quality Controlling Technology for Urban Road Traffic Flow

随着城市交通系统越趋复杂,交通数据量越趋庞大,传统的历史数据修正方法和交通流理论修正方法在数据质量控制上渐显不足,以致隐含在交通流数据中的真实规律得不到体现。文章总结归纳国内外相关领域的研究成果,结合广州市在建和已建智能交通系统中数据质量控制技术现状,提出一种基于数据类型、缺遗原由等特征的城市道路交通流实时数据质量控制技术,并且通过实际工程应用案例验证了该项技术能有效解决交通数据处理的准确性、可靠性和实时性问题。

With urban traffic＇ systems trending to be complex, the amount of traffic data become increasingly huge, then, the methods of data correction whieh are based on historical data and traffic flow theory are insufficiency in data quality controlling, consequently, the rules implicated in traffic flow data can＇t be reflected realistically. Thus, the article summarized the achievements of related field at home and abroad, with the research status of data quality controlling technology- in the building and built ITS in Guangzhou,presents a real-time traffic flow data quality controlling technology, based on data types,loss reasons, etc. The technology was verified to be accurate, relibile and real-time in traffic data processing by a actual project.