A Study of Black Spot on U-Tune Point in front of Nakhon Sawan Provincial Public Health Office by Using Accident Video Clip from Close Circuit Television (CCTV)

Abstract

The purpose of this study was to investigate the characteristics of traffic accidents at a U-turn point for entering to Nakhon Sawan provincial public health office, to explore the factors that contribute to road traffic injury and to be information support for creating a strategy or guidelines to prevent traffic accidents. Data were collected from video clips recorded traffic accidents by CCTV of Nakhon Sawan municipal office during the period from 1st February 2017 to 31st January 2018; and were analyzed by collision diagram. The results demonstrated that the timings that causes of highest road accidents were at 8:00 a.m- 8.59 p.m. (30.17%) and 5.00–5.59 p.m. (15.38%). The weather condition was mostly normal (90.90%) and the condition of the road was dry (90.90%). Most of the accidents were straight running cars hitting those entered and exited the offices, 45.66%, followed by rear-end collision and straight-way cars hit a U-turn cars (18.18%). To solve the problem, a traffic barrier was placed at the U-turn point and a traffic police was assigned to facilitate the flow in the morning before the working hours. Such efforts were not enough as traffic accidents frequently occurred . Therefore, people should be regularly advised to avoid traffic accident by using other U-tern points. In addition, the information about the problem should be widely shared; and structural interventions to reduce the risks should be explored and implemented.