Study on relationship between double-decker bus driver's perception-reaction times, deceleration rates and traffic conflict time-to-collision from on-board video recording / Nur Quratul Aini Hamidun

Recently, the number of double-decker bus accident along FT08 increased every year and becoming alarming issue in Malaysia. Even though the number of DDB accident per year is lower than any type of vehicles, it still involved with the large number of fatalities and severe injuries. Through statistic data from Royal Malaysian Police (RMP), the numbers of DDB accident along FT08 is higher and because this route has many accident-prone locations. At the same time, there are many factors contributed to an accident such as traffic conflict which leading to near-accident and accident events. Due to this reason, the study was conducted in order to study the relationship of PRT and deceleration rates along FT08 for the DDB drivers when encountered a traffic conflict by using on-board video recording along FT08. The GPX data obtained such as speed, distance, acceleration and deceleration rates values performed by each driver when driving along this route. Thus, the PRT and deceleration rates taken for each of the drivers when facing with traffic conflict and time-to-collision were taken into a consideration. The outcome of this study, an analysis would be able to study the relationship between the drivers and the correlation of PRT and deceleration rates of DDB drivers when encountered a traffic conflict to avoid a collision along FT08 route. Furthermore, through this study some approaches and improvement can be proposed by traffic engineers to reduce the numbers of accident so that FT08 route can be safer roads in future.