High Quality Content by WIKIPEDIA articles! The Southern Indiana Toll Road (SITR) was a proposed toll expressway through southern Indiana expected to be included as part of the 142-mile (227 km) Interstate 69 extension from Indianapolis to Evansville. Under legislation enacted by the Indiana Legislature in March 2006, the Southern Indiana Toll Road was to have run 117 miles (188 km) from Interstate 64 at the interchange with Interstate 164 north of Evansville to Martinsville. The remaining 25 miles (40 km) between Martinsville and Indianapolis were to be toll-free. Due to its unpopularity with residents and officials along the proposed route, plans for the SITR were scrapped in lieu of a toll-free I-69 expressway between Indianapolis and Evansville in November 2006. Underlying the decision to abandon further study on the SITR was the fact that analyses from several firms interested in developing, building and operating the toll road indicated that the route would not generate sufficient traffic—and toll revenue—for such an investment.