You have to deal with the UPX from the Woodbine Station to Bloor for those 4 tracks that was to become 8 tracks at Lansdowne and to Union. From Woodbine to Torbram Road you have 4 tracks that become 3 tracks from Torbram Road to Bramalea Station. Until a 4th track is built from Bramalea to Georgetown, you have 3 tracks at the control of CN. There is enough room for 4 tracks in this area now with a few issues to get it in like Brampton Station. Until there is 2 tracks from Georgetown to KW with a few passing sidings, tough fight for an express from KW to Union from my pint of view.