You're probably right, it is the WWLRT. I somehow forgot that exists. Random fact to depress you: The idea for a Waterfront West LRT was first proposed in 1992 as an extension of the 509 Harbourfront (then known as the 604 Harbourfront) along Lake shore Blvd. to Humber Loop. It was meant to address the god awful service on the western half of the 501 Queen after it absorbed the 507 Long Branch. We've been talking about this line for nearly 30 years.I highly doubt that's the extension for Ontario Line West. It follows the Waterfront West LRT so perfectly that... well that's probably what that is.