504 King

The 504 King is a streetcar route operated by the Toronto Transit Commission in Toronto, Ontario, Canada. It was grouped together with the 508 Lake Shore for accounting purposes until it was cancelled on June 19, 2015. In 2005-06, these routes carried 47,900 passengers on an average weekday (of which the vast majority were carried by 504 King), making 504 King the busiest TTC streetcar route in terms of number of passengers. As of September 6, 2015, this route operates 24 hours a day seven days a week. During weekday rush hours, daytime and early evenings, average service frequency is 4 minutes or less. Saturday daytime services have an average frequency of 4–5 minutes with Sunday daytime service frequency averaging 6–7 minutes. During overnight periods, streetcars operate every 30 minutes.

The route provides primary service along King Street in Toronto's downtown core. 504 cars used to provide additional service to the 508 route along Roncesvalles Avenue and Broadview Avenue until June 2015 when the 508 streetcar line was decommissioned. Both lines interchange mid-route with the Yonge-University-Spadina line at St. Andrew and King stations. The 504 King interchanges with the Bloor-Danforth line at its termini, Dundas West and Broadview stations, which the route shares with 505 Dundas streetcars.