| Summary: | 碩士 === 國立中央大學 === 土木工程研究所 === 94 === On recent years, the government is going on relative discussions about open the right turn on red (RTOR) policy up. Therefore, the purpose of this research is to analyze that which amount of pedestrian flow or RTOR flow is practicable, after the enforcement of the right turn on red policy.
This research is aimed at pedestrians who walk through the intersections and the vehicles which right turn on red. It tried to construct the estimation model of pedestrian quantity by the regression analysis as well. Through the conception of potential conflict to analyze pedestrian-vehicle confliction of different pedestrian flow and RTOR flow. According to the observation, after turned the count-down pedestrian signal on, dispersion phenomenon exists in the distribution of pedestrians on the crosswalk. Pedestrians have highly freedom, some of them enter the crosswalk or leave halfway in the process of crossing the intersection. Therefore, the actions of those pedestrians is complicated and unpredictable.
According to the survey，the delay time of pedestrian is about three seconds. The delay time of pedestrian and the quantity of cumulate pedestrian at the intersection shows negative correlation while the pedestrian discharge rate and the quantity of cumulate pedestrian at the intersection exists positive correlation. The pedestrian dispersion rate is about 1.27 meter per second and with the increasing of the quantity of cumulate pedestrian the variability reduced.
The number of variables of the estimation model of pedestrian quantity adopted the quantity of cumulate pedestrian and green time of pedestrian crossing the intersection. Adjusted R2 of the estimation model of pedestrian quantity became lower but model coefficient corresponded to the tendency of the pedestrians.
The pedestrian-vehicle confliction analysis shows: with the increasing of RTOR flow，the quantity of pedestrian-vehicle confliction increased as well. When the vehicle flow surpassed 145 vehicles per hour、the total quantity of cumulate pedestrian at the intersection was over 30, the quantity of pedestrian-vehicle confliction increased apparently. Take 20 as the limitation of the quantity of cyclic pedestrian-vehicle confliction，the quantity of RTOR flow is 101、124、145 vehicles per hour. To enforce the RTOR, the threshold of quantity of cumulate pedestrian is 40、15、10 . If the quantity of cyclic pedestrian-vehicle confliction is under 30, the quantity of RTOR flow is 101、124、145、155 vehicles per hour. To enforce the RTOR, the threshold of quantity of cumulate pedestrian is 50、40、20、20 .
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