For the second weekend in a row, a stretch of the University-Spadina subway line is being closed for the weekend for track upgrades.

Subways won't be running between Wilson and Downsview stations starting Saturday at 6 a.m. All northbound trains will turn back at Wilson Station.

Shuttle buses will be ferrying passengers between the stations until regular service resumes Monday at 6 a.m.

A Wheel-Trans vehicle will be on standby at Eglinton West Station, the TTC says.

The line will be closed so TTC crews can work on the Spadina extension to York University and Vaughan.

Intermittent closures are scheduled to continue until April.