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http://dx.doi.org/10.12652/Ksce.2010.30.5D.443

Study on Advisory Safety Speed Model Using Real-time Vehicular Data  

Jang, JeongAh (한국전자통신연구원 자동차-IT융합연구부 친환경차량IT연구팀)
Kim, HyunSuk (한국전자통신연구원 자동차-IT융합연구부 친환경차량IT연구팀)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.30, no.5D, 2010 , pp. 443-451 More about this Journal
Abstract
This paper proposes the methodology about advisory safety speed based on real-time vehicular data collected from highway. The proposed model is useful information to drivers by appling seamless wireless communication and being collected from ECU(Engine Control Unit) equipment in every vehicle. Furthermore, this model also permits the use of realtime sensing data like as adverse weather and road-surface data. Here, the advisory safety speed is defined "the safety speed for drivers considering the time-dependent traffic condition and road-surface state parameter at uniform section", and the advisory safety speed model is developed by considering the parameters: inter-vehicles safe stopping distance, statistical vehicle speed, and real-time road-surface data. This model is evaluated by using the simulation technique for exploring the relationships between advisory safety speed and the dependent parameters like as traffic parameters(smooth condition and traffic jam), incident parameters(no-accident and accident) and road-surface parameters(dry, wet, snow). A simulation's results based on 12 scenarios show significant relationships and trends between 3 parameters and advisory safety speed. This model suggests that the advisory safety speed has more higher than average travel speed and is changeable by changing real-time incident states and road-surface states. The purpose of the research is to prove the new safety related services which are applicable in SMART Highway as traffic and IT convergence technology.
Keywords
real-time vehicle data; advisory safety speed; traffic-IT convergence service;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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