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Injury mechanism in road crash through accident investigation | |
Author | Pakorn Aniwattakulchai |
Call Number | AIT Thesis no.TE-06-02 |
Subject(s) | Accident investigation--Thailand |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Transportation Engineering, School of Engineering and Technology |
Publisher | Asian Institute of Technology |
Series Statement | Thesis ; no. TE-06-02 |
Abstract | Road crash becomes major cause of death and injuries for human. Every year, 1.2 million people are killed and up to 50 million are injured and disabled as a result of road crash. While many countries have managed to decrease the rate of road crash, this rate is continuously increasing in low- and middle-income countries. Many countermeasures have been promoted to reduce number of injuries and fatalities. However, many people are still killed or injured due to the road crash in any minute. Study of injury mechanism can provide clear picture and get good understanding of how occupants moved relative to the vehicle and get injury during collision. The study helps in preventing injury reoccurring or reducing severity of injmy in the future. On the other hand, Injury Surveillance (IS) data was analyzed to understand the factor related with road crash injmy. Data was concentrated in driver of passenger car and pickup and passenger of passenger car base on type of crash, gender, age group, and body regions. Hitting heavy vehicle and falling down & turning over crash are the main crash causing many fatalities for all three categories and characteristic of injmy is not affected directly by gender and age of occupant. Moreover, most of injury occurred at head, upper, and lower extremities. Seatbelt can reduce percentage of head injury for three categories. ICD-10 code and Abbreviated Injury Scale on IS data was analyzed to study relationship between two information base on statistic method as well Road crash data was collected through accident investigation with the assistance of Thailand Accident Research Center (TARC). Analyses were mainly carried out by simulating through MADYMO software and support by mathematical calculation. The accuracy of the result is obtained by comparing and interpreting of the result with actual injury information. An accident case was analyzed to study on the injury mechanism of the occupants involving in the crash. In this case, a vehicle, 4-door pick-up was impacted at the rear by another vehicle, 4-door pick-up causing five casualties in the first vehicle. It was observed that only driver of the first vehicle used the seatbelt during collision. The results from the analysis illustrates that movement of occupant during collision is separated into two stages which are moving rearward due to high acceleration and moving relate to speed and direction of car in forward direction. Driver got contusion of right shoulder and upper arm by impact with seat back and steering wheel. Front passenger got an injury by impact between back head and head rest causing superficial injury of scalp. The left and right rear-seat occupants were injured at forehead from moving forward in the second state of movement to strike the front occupant's seat and B-pillar, while the center-rear passenger got contusion of lower back and pelvis because of the movement. Law enforcement of seatbelt use for rear passenger, rear-seat passenger's airbag which can prevent injury in moving forward, and "WHIPS" seat technology which can reduce severity of injury in moving rearward are proposed to be. alternative countermeasures for this crash type. Finally, law enforcement is considered as more effective approach for this case study after evaluating of alternative countermeasures. |
Year | 2007 |
Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. TE-06-02 |
Type | Thesis |
School | School of Engineering and Technology (SET) |
Department | Department of Civil and Infrastucture Engineering (DCIE) |
Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
Chairperson(s) | Kunnawee Kanitpong; |
Examination Committee(s) | Hanaoka, Shinya;Prapansak Buranaprapa; |
Scholarship Donor(s) | THAILAND (H. M. King); |
Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |