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I-49 South (Updates) ... website
Intelligent Transportation Systems    - Contact: (225) 379-2516 ITS is a national initiative aimed at using state-of-the-art technology to increase the safety and effi... ... websiteITS
International Friction Index    - A measure of pavement macrotexture and wet pavement friction at 60 miles per hour determined using measured friction at some tes...IFI
International Roughness Index    - A measure of a pavement's longitudinal surface profile as measured in the wheelpath by a vehicle traveling at typical operating ...IRI
Interstate Interchange Development    - Contact: (225) 379-1380
Interstate Logo Signs    - Contact Name: Jordan VanGeffen Toll Free: 1(877)309-3078 Phone: 225-752-8640 Fax: 225-753-6603...45