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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 ef... ... website | ITS |
| Intermodal Transportation - Contact: (225) 274-4134 Our mission is to continuously improve Louisiana's transportation infrastructure and provide an effic... ... website | 66 |
| 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 - Toll Free: 800-468-7805Phone: 225-927-9408Fa... | 45 |
