A Study on the Effect of Precipitation on Regional Traffic Accidents

In rainy weather compared with clear weather, most drivers have difficulties on the road. Rain obstructs the visibility and increases braking distance on a wet surface. If the amount of precipitation to increase the danger of an accident is known, it would be easy to prepare the countermeasures for accidents on rainy days. This paper attempts to provide an analysis of relationships between precipitation and traffic accident occurrence. Further, it presents how certain precipitation has an immediate effect on accidents. To achieve this, a couple of datasets are required; in the first, daily precipitation data from 80 weather observation stations for 5 years ('08~'12), while in the second, daily traffic accident data grouped regionally along with weather station coverage. The next phase is linear regression analysis to define the relationship reflecting population and annual precipitation of each group. This study is expected to be a useful source material to explain the impact of climate change on road accident rate macroscopically, and helpful to decide the area for safety facilities.

• Record URL:
  • https://proceedings-seoul2015.piarc.org/ressources/files/3/IP0382-Lim-E.pdf
• Availability:
  • Find a library where document is available. Order URL: https://www.piarc.org/en/order-library/25346-en-Proceedings%20of%20the%20XXVth%20World%20Road%20Congress%20-%20Seoul.htm
• Supplemental Notes:
  • Abstract reprinted with permission of the World Road Association – PIARC.
• Corporate Authors:

  World Road Association (PIARC)

  La Grande Arche, Paroi Nord, Niveau 5
  F-92055 La Defense Cedex,   France 
• Authors:
  • Lim, Chaehong
  • Lee, Sungyeol
• Conference:
  • 25th World Road Congress
  • Location: Seoul , Korea, South
  • Date: 2015-11-3 to 2015-11-7
• Publication Date: 2015

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 7p
• Monograph Title: Proceedings of the 25th World Road Congress - Seoul 2015: Roads and Mobility - Creating New Value from Transport

Subject/Index Terms

• TRT Terms: Climate change; Crash data; Crash rates; Linear regression analysis; Precipitation (Meteorology); Rain; Traffic crashes; Weather stations
• Geographic Terms: Korea
• Subject Areas: Environment; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01679899
• Record Type: Publication
• ISBN: 9782840604235
• Report/Paper Numbers: 0382
• Files: TRIS
• Created Date: Aug 31 2018 1:43PM