502 Züm Main is a bus rapid transit route in Brampton, Ontario which leads south into Mississauga, Ontario. The second corridor, which began service on September 6, 2011, runs from Sandalwood Parkway in the city's north end to MiWay's City Centre Transit Terminal near the Square One Shopping Centre in the south. It travels via the Downtown Brampton and Brampton Gateway terminals along Main and Hurontario Streets through Brampton and Mississauga. It covers the route of current route 2, which has frequent rush-hour service. Route 502 extends and replace MiWay's route 102 InterCity Express. It runs every 10 minutes during rush hours and 20 minutes off-peak hours, including weekends. Route 2's rush hour frequency was reduced to 20 minutes to optimize ridership.