As an alternative to the gravel surfaces in Umstead Park, Trenton Rd., with its bridge over I 40, makes for a more direct connector between Raleigh and Cary. South of I 40, Trenton passes flocks of sheep as it crosses NC State farmland. Connections to Cary from Trenton Rd. via Arlington Rd., Electra Dr., and Dynasty Dr. can be made through the Medfield neighborhood, or by cutting through the SAS campus. Both alternatives connect to the Cary system and provide some nice hills in the process.
Pieces Parts is a route that uses this connector.