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- W2406913474 abstract "This study deals with the accident of roundabout. The objective is to analyze the traffic accidents occurred in 3-legged and 4-legged roundabouts through the developed models. In developing the multiple linear regression models, this study uses the number of traffic accidents as a dependent variable and such the variables as geometric structures, traffic characters and others as the independent variables. The correlation and multicollinearity of variables were analyzed using SPSS17.0. The main results are as follows. First, R-square value of developed models were analyzed to be 0.851(3-leg) and 0.689(4-leg), respectively. Second, the independent variables in the 3-legged roundabout accident model were analyzed to be the traffic volume and number of crosswalk, and the variables in the 4-legged roundabouts were evaluated to be the traffic volume and signal. Finally, the paired t-test shows that the predicted values and observed values are not statistically different." @default.
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- W2406913474 date "2012-01-01" @default.
- W2406913474 modified "2023-09-23" @default.
- W2406913474 title "Accident Analysis of 3-legged and 4-legged Roundabouts" @default.
- W2406913474 doi "https://doi.org/10.14346/jkosos.2012.27.3.161" @default.
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