In 1997, the completion of a dedicated right-of-way on Spadina Avenue resulted in the Harbourfront route being relaunched as the 510 Spadina. The "Harbourfront" route name disappeared until 2000, when the Queens Quay streetcar tracks were extended west to Bathurst and Fleet Streets. The Harbourfront was then reinstated with the new number 509, and extended to Exhibition Loop at Exhibition Place, sharing its route with the 510 from Union to Spadina and with the 511 Bathurst from Bathurst onwards. Between September 2007 and March 2008, the Fleet Street portion of Route 509 has since been converted to a parallel private right-of-way, so that the entire route operates entirely separate from road traffic.