It is widely realized that drivers' driving behavior has a huge influence on road traffic safety. In order to better understand the characteristics of driving behavior and to improve the road safety, the system which could acquire and analyze drivers' driving behavior is needed. In this paper, we present the technological means and analytical methods of an analysis system used for researching drivers' behavior in detail. The hardware system is made up of two computers and a Driving Force Pro.

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... e software system includes Speed Dreams engine, the Monitor program and the Data Analysis program. The Speed Dreams engine is used to create driving scenarios, the Monitor program is used to high-speed record driving behavior, and the Data Analysis program is used to real-time analyze the characteristics of driving behavior. Inter-process message communication technology and multi-thread programming are adapted to synchronous acquire, record and analyze all the driving behavior data as well, which ensure the continuity and equal time interval. What's more, smoothing, noise reduction, derivation and other data processing methods are used to analyze and obtain the characteristics of driving behavior, such as response time, braking speed, steering speed and so on. The test results show that the established driving behavior analysis system not only could real-time acquire the data of driving behavior, but also could analyze the characteristics of driving behavior accurately. Therefore, the driving behavior analysis system will provide reliable support for further research on driving behavior, which aims to improve the driving safety.