Complex sentence: Also part of I-376 is the "Parkway West," which leads from downtown Pittsburgh to the Pittsburgh International Airport's main terminal and leads into the contiguous Airport Parkway and Southern Expressway.
Split into simpler sentences: Also part of I-376 is the "Parkway West," which leads from downtown Pittsburgh to the Pittsburgh International Airport's main terminal. The Parkway West leads into the contiguous Airport Parkway and Southern Expressway.