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Research Reports

MRR 239: MIROS Crash Investigation And Reconstruction Annual Statistical Report 2011-2013

This report highlights the statistical analysis of MIROS’s in-depth crash investigation cases  throughout  the year of 2011–2013.  The main objective  of this report  is to provide  the  result  of the  descriptive  analysis,  inferential  analysis  and  indexes  on casualties  of  crash  investigation  cases  of  the  said  year.  From  2011  until  2013, MIROS’  crash  investigation  team  investigated  167  cases  regarding  the  crash  that meets  the  MIROS’s  specific  requirements.  The  number  of  investigated  cases  for each year of 2011, 2012 and 2013 is 68 cases, 44 cases and 55 cases respectively. For  each  year  more  than  50%  of  the  crash  cases  involved  two  vehicles.  The proportion  of crash involving  passenger  car which included  car, four wheel drive, van and MPV is significantly higher compared to another vehicle type. In terms of crash configuration, head-on collision recorded the highest proportion compared to others.  A high number  of investigated  cases tend to occur on the midblock  road compared to the other types of intersection.
The inferential analysis shows some parameters have significant relationships  with other variables. This includes horizontal and vertical alignment, road type and crash configuration,  the number of vehicles and crash configuration.  On a vertical slope road, the likelihood for an accident to happen in the horizontal bend road is 7.381 higher than in horizontal straight road. The analysis showed that KSI Index is high on Wednesday, the time between 1401 to 1600, the month of August, Sarawak, vicinity of  construction,  a  night  without  street  light,  during  light  rain,  in  private  road, crossroad intersection, straight and slope road alignment, single carriageway, cases involved rollover and single vehicle. Fatality index has also shown that the highest number of the parameters listed above except for staggered intersection instead of a  crossroad.  Risky  driving  and  speeding  are  found  to  be  the  most  identified  crash occurrence  factors  in  the  investigated  cases  year  2011–2013.  Meanwhile  for  injury occurrence  factors,  crash  compatibility  was  found  to  be  more  prominent  in  each variable analysed.

MRR 239 MIROS Crash Investigation and Reconstruction Annual Statistical Report 2011-2013.pdf
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