smart roadside system for driver assistance and safety warnings framework and applications聪明的路边驾驶员辅助系统框架和应用程序和安全警告.pdf

Sensors 2011, 11, 7420-7436; doi:10.3390/s110807420 OPEN ACCESS sensors ISSN 1424-8220 /journal/sensors Article Smart Roadside System for Driver Assistance and Safety Warnings: Framework and Applications Jeong Ah Jang *, Hyun Suk Kim and Han Byeog Cho Vehicle-Ship IT Convergence Research Department, ETRI (Electronics and Telecommunications Research Institute), 161 Gajeong-dong, Yuseong-gu, Daejeon 305-350, Korea; E-Mails: hyskim@etri.re.kr (H.S.K.); hbcho@etri.re.kr (H.B.C.) * Author to whom correspondence should be addressed; E-Mail: azang@etri.re.kr; Tel.: +82-42-860-5636; Fax: +82-42-860-1085. Received: 22 June 2011; in revised form: 15 July 2011 / Accepted: 18 July 2011 / Published: 25 July 2011 Abstract: The use of newly emerging sensor technologies in traditional roadway systems can provide real-time traffic services to drivers through Telematics and Intelligent Transport Systems (ITSs). This paper introduces a smart roadside system that utilizes various sensors for driver assistance and traffic safety warnings. This paper shows two road application models for a smart roadside system and sensors: a red-light violation warning system for signalized intersections, and a speed advisory system for highways. Evaluation results for the two services are then shown using a micro-simulation method. In the given real-time applications for drivers, the framework and certain algorithms produce a very efficient solution with respect to the roadway type features and