Transportation Safety Planning Working Group “Analysis Tools” March 27-28, 2006. Dr. Simon Washington, Professor Department of Civil & Environmental Engineering, Ira A. Fulton School of Engineering Arizona State University. Acknowledgements.
Dr. Simon Washington, Professor
Department of Civil & Environmental Engineering, Ira A. Fulton School of Engineering
Arizona State University
Dr. Michael Meyer
Dr. Eric Dumbaugh
Ms. Ida van Schalkwyk
Mr. Matthew Zoll
Ms. Sudeshna Mitra
Ms. Ashley Chang
A corridor improvement is being considered that will bring about new residential and commercial development to 10 TAZs, as well as increased population and resultant traffic volumes. A host of new intersections will be added because of the project, as well as new road mileage.
Interest focuses on what changes to safety are anticipated as result of this project.
As a result of the proposed project there is an anticipated increase in serious incapacitating injuries and fatalities from 68 to 87, or 19 additional crashes (new population, new roads, etc.)
If a 20% reduction in these crash types was desired (a Plan Target), then 87(.80) = 69 crashes is the future safety target.
Safety investments would need to identified to reduce crashes from 87 to 69 (a reduction of 18 crashes)
NOTE: Overall crashes have increased (from 68 to 69) even though safety improvements are made!
Transportation Safety Planning: Forecasting the Safety Impacts of Socio-Demographic Changes and Safety Countermeasures
Will continue/expand work started during NCHRP 8-44
Start: Spring 06
End: Fall 08
Questions & Comments Injuries