2014 Volume 70 Issue 5 Pages I_1095-I_1106
In this study, we investigated QOS of arterial roads, by using objective data that reflect bicycle users' stress measured by a heart rate monitor and subjective data that represent bicycle users' evaluation of traffic conditions through a questionnaire survey. In order to quantitatively express bicycle users' stress, first, we defined the stress level for bicycle users, and then the factors that have significant impacts on the stress were analyzed by regression model. On the other hand, the questionnaire survey about bicycle users' evaluation on traffic conditions at sidewalks, on road and intersections was conducted. By the covariance structure analysis, the factors largely influencing bicycle users' evaluation were found. Moreover, a methodology for QOS of sidewalks and intersections was proposed, based on the objective and subjective analysis. QOS of the studied arterial roads was quantitatively evaluated, and the effectiveness of traffic policies relating to bicycle users was discussed, through the proposed methodology. Finally, we examined the correlation between objective and subjective data, which confirms the necessity of measuring QOS from both objective and subjective points of view.
