TTC subway service on Line 1 Yonge-University will be closed between St. George Station and Lawrence West Station on Saturday and Sunday this weekend to allow time for signal upgrades.

The TTC says northbound trains on Line 1 will turn south at St. George, while southbound trains will turn north at Lawrence West.

Shuttle buses will be available between those two stations, and Wheel-Trans buses will be available by request.

Presto cards still aren't available on all shuttle buses, so the TTC is reminding customers to bring tokens, tickets, or cash to pay their fare.

Parking restrictions are in effect outside some subway stations to allow more room for shuttle buses.