A very strong argument from @moretransitso that any westward extension of Line 4 should cross Downsview before development to save money and to create more transit ridership and enable future GO connections too:
https://open.substack.com/pub/moretransitso/p/the-sheppard-subway-must-serve-the
#TOPoli #ONPoli #TTC #Metrolinx

The Sheppard Subway Must Serve the Downsview Airport Development
Metrolinx is planning on extending the Sheppard Subway, and there is a huge opportunity to extend the line to Toronto's largest development, while the site is empty and before construction starts.
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