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Development of Predicting Models of the Operating Speed and Operating environment Satisfaction Model in Expressways  

Kim, Jang-Uk (서울시립대학교 교통공학과)
Jang, Il-Jun (삼성교통안전문화연구소)
Kim, Jeong-Hyeon (한국철도기술연구원 미래기술실용화센터 실용화기획팀)
Lee, Su-Beom (서울시립대학교 교통공학과)
Publication Information
Journal of Korean Society of Transportation / v.27, no.2, 2009 , pp. 117-131 More about this Journal
Abstract
When most drivers take to the freeway, they don't necessarily pay attention to the geometric design. They expect proper design by depending on their own senses and recognition. When they evaluate the features of traveling on the freeway, they can think differently than engineers. The design needs to predict the exact speed of the driver to satisfy the driver's expectation, safety, pleasure and so on. This study categorized the factors influencing the speed of six freeways considering geometric and operational features to make a prediction model of speed. The model used multiple regression with these factors and produced statically appropriate results. This study utilized the principle component analysis and the quantification II analysis based on the image data of the satisfaction of the traveling environment collected through individual interviews. As a result, this study found the factors of satisfaction in a traveling environment. It made a satisfaction model of the traveling environment on freeways considering the change of driver's actual recognition and societal recognition using structural equations and the quantification II theory. Through the model made in this study, This model can present not only qualitative factors like satisfaction of traveling environment on freeways, but also the quantitative elements like speed. What is important is the evaluation of features of traveling on freeways reflected in the recognition and traffic environment felt by drivers.
Keywords
Operation Speed Estimation Model; Operation Environment Satisfaction; Quantification Theory; Principal Component Analysis; Linear Structure Relationships; Analytic Hierarchy Process;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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