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Road Safety Audit: Identification of Bus Hazardous Location in Thailand


Affiliations
1 Suranaree University of Technology, Department of Transportation Engineering, 111 University Avenue, Suranaree Sub-district, Nakornratchasima, 30000, Thailand
2 Nakhon Ratchasima Rajabhat University, Program of Construction Technology, Faculty of Industrial Technology, 340 Suranarai Avenue, Mueang Sub-district, Nakornratchasima,, Thailand
 

A study implicates the analysis of bus hazardous locations via data gathering using traffic accident statistics on National Highways in Thailand reported by Department of Highways B.E. 2549-2554 (2006-2011), then being used to formulate the hazardous spot map for travel trips with a view to reducing the crash risks of road users. Likewise, a road safety audit was meaningfully carried out at road segments having high travel accidents in order to carefully scrutinize the problems as well as provide suggestions on road safety improvement, particularly hazardous locations. According to results of black spot analysis on Thailand National Highways, the inspection using the accident frequency method ranked 30 accident risk spots from high to low accident frequency. Afterward the rate quality control technique was simultaneously applied for identifying black spots, and then made a descending order considering dangerous factor (DF). The findings indicated the largest number of 12 black spots in the central region, following by the north (8 black spots), north-east (5 black spots), west (3 black spots), east (2 black spots) and south (0 black spots), respectively. Regarding road safety audit in a case of air-bus slipped and fell off the curb at National Highway 304 KM 29+000, the major causes of accident were pointed out such as physical road characteristics with short-radius curves, rainy climate, and bottleneck features. Suggestions on short-term and long-term solutions were provided by this study. For the short-term, putting a warning sign for drivers prior to reaching the curve on both left and right sides, increasing skid resistance to the road surface before the curve to reduce vehicle speeds, and establishing incident management system were introduced; while determining appropriate curve radius should be considered as the long-term option. The contribution vis-à-vis application of results and recommended actions can further be delivered and utilized in other areas.

Keywords

Hazardous Location, Bus, Road Safety Audit, Accident Investigation
User

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  • Road Safety Audit: Identification of Bus Hazardous Location in Thailand

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Authors

Vatanavongs Ratanavaraha
Suranaree University of Technology, Department of Transportation Engineering, 111 University Avenue, Suranaree Sub-district, Nakornratchasima, 30000, Thailand
Duangdao Watthanaklang
Nakhon Ratchasima Rajabhat University, Program of Construction Technology, Faculty of Industrial Technology, 340 Suranarai Avenue, Mueang Sub-district, Nakornratchasima,, Thailand

Abstract


A study implicates the analysis of bus hazardous locations via data gathering using traffic accident statistics on National Highways in Thailand reported by Department of Highways B.E. 2549-2554 (2006-2011), then being used to formulate the hazardous spot map for travel trips with a view to reducing the crash risks of road users. Likewise, a road safety audit was meaningfully carried out at road segments having high travel accidents in order to carefully scrutinize the problems as well as provide suggestions on road safety improvement, particularly hazardous locations. According to results of black spot analysis on Thailand National Highways, the inspection using the accident frequency method ranked 30 accident risk spots from high to low accident frequency. Afterward the rate quality control technique was simultaneously applied for identifying black spots, and then made a descending order considering dangerous factor (DF). The findings indicated the largest number of 12 black spots in the central region, following by the north (8 black spots), north-east (5 black spots), west (3 black spots), east (2 black spots) and south (0 black spots), respectively. Regarding road safety audit in a case of air-bus slipped and fell off the curb at National Highway 304 KM 29+000, the major causes of accident were pointed out such as physical road characteristics with short-radius curves, rainy climate, and bottleneck features. Suggestions on short-term and long-term solutions were provided by this study. For the short-term, putting a warning sign for drivers prior to reaching the curve on both left and right sides, increasing skid resistance to the road surface before the curve to reduce vehicle speeds, and establishing incident management system were introduced; while determining appropriate curve radius should be considered as the long-term option. The contribution vis-à-vis application of results and recommended actions can further be delivered and utilized in other areas.

Keywords


Hazardous Location, Bus, Road Safety Audit, Accident Investigation

References





DOI: https://doi.org/10.17485/ijst%2F2013%2Fv6i8%2F36356