Looking a bit earlier in this thread, extending the Finch LRT toward the airport would be most ideal running down Hwy 27 and west on Dixon.
I've been living in Malton for the past 20 years, and running an LRT down Derry/Airport would not benefit our neighborhood, not to mention municipal boundaries crossed, lack of ridership and development opportunity.
The LRT can run along the west side of Hwy 27 instead of down the middle, given the space along the corridor and how traffic tends to move through the corridor as opposed to be destined locally along it. Not much pedestrian traffic, most ridership might come from connections or keypoints along the way.
Here's what I'm imagining:
Queens plate:
Connections to the redeveloped Woodbine Shopping mall to the west, and Fortinos etc. retail on the east side.
Woodbine Racetrack:
To connect with the proposed redevelopment of this area as a Casino and mini village.
UPX Woodbine Station
Provide a changeover between TTC and UPX. With fare integration, that means going from the Woodbine/Humber /Rexdale area to downtown or vise versa is faster than Finch LRT to Finch West through TYSSE or the good old 191 Rocket. With Etobicoke and Malton GO stations nearby, this would not have a connection with GO transit.
Belfield
To connect with local industrial areas and cross-routes.
Dixon / Congress Center
To link the congress center and airport parking directly to the airport with an LRT. No need for a shuttle bus anymore.
Skyway, Carlingview, Jetliner
Revive Dixon road to become more pedestrian friendly, and open up the food services and hotels with very easy access to the airport. Again, no more need for private shuttle buses.
Just my two cents
. I;ll check back in 25 years to see how much of this has been planned....much less funded.