Highway accident severities and the mixed logit model: an exploratory empirical analysis

Accident; Analysis and Prevention
John C MiltonFred L Mannering

Abstract

Many transportation agencies use accident frequencies, and statistical models of accidents frequencies, as a basis for prioritizing highway safety improvements. However, the use of accident severities in safety programming has been often been limited to the locational assessment of accident fatalities, with little or no emphasis being placed on the full severity distribution of accidents (property damage only, possible injury, injury)-which is needed to fully assess the benefits of competing safety-improvement projects. In this paper we demonstrate a modeling approach that can be used to better understand the injury-severity distributions of accidents on highway segments, and the effect that traffic, highway and weather characteristics have on these distributions. The approach we use allows for the possibility that estimated model parameters can vary randomly across roadway segments to account for unobserved effects potentially relating to roadway characteristics, environmental factors, and driver behavior. Using highway-injury data from Washington State, a mixed (random parameters) logit model is estimated. Estimation findings indicate that volume-related variables such as average daily traffic per lane, average daily truck tr...Continue Reading

References

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Citations

Mar 19, 2013·Accident; Analysis and Prevention·Zifeng WuShefang Wang
May 1, 2013·Accident; Analysis and Prevention·Hans Manner, Laura Wünsch-Ziegler
May 16, 2013·Accident; Analysis and Prevention·Xin YeKarthik C Konduri
Jun 19, 2013·Accident; Analysis and Prevention·Emmanuelle DupontGeorge Yannis
Jul 9, 2013·Accident; Analysis and Prevention·Mohammad Saad B ShaheedZachary Hans
Aug 7, 2013·Accident; Analysis and Prevention·Yu-Chiun ChiouChiang Fu
Aug 31, 2012·Traffic Injury Prevention·Athanasios TheofilatosGeorge Yannis
Feb 4, 2014·Accident; Analysis and Prevention·Kelvin GohDavid Logan
Jun 11, 2014·Journal of Safety Research·Alexander MaistrosPeter T Savolainen
May 8, 2014·Accident; Analysis and Prevention·Xuesong WangGrant G Schultz
Aug 13, 2014·Accident; Analysis and Prevention·Lekshmi Sasidharan, Mónica Menéndez
Aug 3, 2014·Accident; Analysis and Prevention·Athanasios Theofilatos, George Yannis
Aug 5, 2014·Accident; Analysis and Prevention·Samantha Islam, Steven L Jones
Aug 22, 2014·Journal of Safety Research·Soyoung JungSanghyeok Kang
Jul 9, 2014·Accident; Analysis and Prevention·Yaotian ZouMario A Romero
Dec 29, 2015·Accident; Analysis and Prevention·Randa Oqab MujalliLaura Garach
May 3, 2015·Journal of Safety Research·Kirolos Haleem, Albert Gan
Jan 22, 2013·Accident; Analysis and Prevention·Marisol CastroChandra R Bhat
Jan 10, 2013·Accident; Analysis and Prevention·Prasad BuddhavarapuJorge A Prozzi
Aug 23, 2011·Journal of Safety Research·Esmaeel Ayati, Ehsan Abbasi
May 7, 2011·Accident; Analysis and Prevention·Mohamed AhmedBernardo Guevara
May 7, 2011·Accident; Analysis and Prevention·Xiaoyu Zhu, Sivaramakrishnan Srinivasan
Nov 10, 2010·Journal of Safety Research·Anurag PandeAbhishek Das
Aug 24, 2010·Accident; Analysis and Prevention·Qiang MengXiaobo Qu
Aug 24, 2010·Accident; Analysis and Prevention·Wen Hu, Eric T Donnell
Aug 24, 2010·Accident; Analysis and Prevention·Joon-Ki KimFred L Mannering
Aug 24, 2010·Accident; Analysis and Prevention·Zoi ChristoforouMatthew G Karlaftis
Feb 18, 2010·Accident; Analysis and Prevention·Mercedes AyusoManuela Alcañiz
Dec 31, 2008·Accident; Analysis and Prevention·Panagiotis Ch Anastasopoulos, Fred L Mannering
Mar 11, 2008·Accident; Analysis and Prevention·Panagiotis Ch AnastasopoulosFred L Mannering
Mar 11, 2008·Accident; Analysis and Prevention·Konstantina Gkritza, Fred L Mannering
Jun 11, 2011·Accident; Analysis and Prevention·Abigail Morgan, Fred L Mannering
Jun 11, 2011·Accident; Analysis and Prevention·Andrew Tarko, Md Shafiul Azam
Jun 11, 2011·Accident; Analysis and Prevention·Feng Chen, Suren Chen
Jun 11, 2011·Accident; Analysis and Prevention·Peter T SavolainenMohammed A Quddus

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