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Practice

Maintenance guidelines for cable barrier systems

Information provided below is from an email survey conducted in 2006

__________________

Indiana has two evaluation sections of the Brifen TL 4 system. The state is developing guidelines for where cable rail should be installed (based on median width and accident history).
Current maintenance guidelines are very simple: the state fixes all broken pieces. There are two evaluation sections along I-65 and I-69 near Indianapolis. The installation contract specified that maintenance crews were to be given training and a supply of repair parts (mainly posts).
So far, all of the maintenance has been completed by state crews. However, if the state begins getting a large number of hits, the state may add cable repair to existing guardrail maintenance contracts.
As to new installations, the Safety section has come up with guidelines for new locations on interstates: anything with an ADT>40,000, or a 3-year cross median crash history of more than 13. The state plans to install another 100 miles in both FY07 and FY08 based on these guidelines.

State/Agency: Indiana
Topics: Barriers (Roads)

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