Statistics – Applications
Scientific paper
2008-06-08
Transportation Research Record, 2008, Issue 2083, pages 122-127
Statistics
Applications
14 pages, 2 tables, accepted for publication in Transportation Research Record
Scientific paper
The influence of speed limits on roadway safety has been a subject of continuous debate in the State of Indiana and nationwide. In Indiana, highway-related accidents result in about 900 fatalities and forty thousand injuries annually and place an incredible social and economic burden on the state. Still, speed limits posted on highways and other roads are routinely exceeded as individual drivers try to balance safety, mobility (speed), and the risks and penalties associated with law enforcement efforts. The speed-limit/safety issue has been a matter of considerable concern in Indiana since the state raised its speed limits on rural interstates and selected multilane highways on July 1, 2005. In this paper, the influence of the posted speed limit on the severity of vehicle accidents is studied using Indiana accident data from 2004 (the year before speed limits were raised) and 2006 (the year after speed limits were raised on rural interstates and some multi-lane non-interstate routes). Statistical models of the injury severity of different types of accidents on various roadway classes were estimated. The results of the model estimations showed that, for the speed limit ranges currently used, speed limits did not have a statistically significant effect on the severity of accidents on interstate highways. However, for some non-interstate highways, higher speed limits were found to be associated with higher accident severities - suggesting that future speed limit changes, on non-interstate highways in particular, need to be carefully assessed on a case-by-case basis.
Malyshkina Nataliya V.
Mannering Fred L.
No associations
LandOfFree
Analysis of the Effect of Speed Limit Increases on Accident-Injury Severities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Analysis of the Effect of Speed Limit Increases on Accident-Injury Severities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analysis of the Effect of Speed Limit Increases on Accident-Injury Severities will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-400230