Born out of the I-89 2050 Study, this assessment reviewed two interchange concepts, one in Milton near the West Milton Road bridge over I-89, and one in Bolton near the Bolton Valley Access Road. Both locations have previously underwent some form of study. However, the previous studies date back to the late 1980s/early 1990s. This assessment served to review modern geometric design standards and environmental requirements as they pertain to each conceptual interchange.

This technical study evaluated traffic signal operations at five intersections along the Shelburne Street corridor in Burlington and provided recommendations for signal operations improvements. The study area included the intersections of I-189 westbound off ramp, Shopping Center plazas, Home Avenue and Farrell Street, Flynn Avenue and Prospect Parkway with Shelburne Street.