Bridge Rails and Approach Railing for Low-Volume Roads in Iowa (TR-592)
Researcher(s)
Principal investigator: Brent Phares, 515-294-5879, bphares@iastate.edu (project list)
Co-principal investigators:
- Zachary Hans, 515-294-2329, zhans@iastate.edu (project list)
Project status
In progress
Start date: 08/01/08
End date: 07/31/09
Sponsor(s)/partner(s)
Sponsor(s):Iowa Department of Transportation
Iowa Highway Research Board
About the research
Research objective: Provide guidance to county engineers for replacement or upgrading bridge and bridge approach guard railing by --Determining the criteria and guidelines used by other states for bridge and approach guardrail implementation for low and very low-volume roads. --Performing benefit/cost analysis for using bridge and approach guardrails based on traffic levels and road classifications. --Investigating the use of non-standard and innovative bridge and approach guardrails for low-volume roads.