VIA Rail

[ijmorlan]

Imagine no more. Visit the Bloor station in Toronto, serviced by high-floor UP Express trains, and low-floor GO trains. Magic!

Do I recall correctly that it’s a long platform with one part high and one part low?

That certainly is a solution which can work nicely. My own thought was that the parts of the platform where the ends of the cars would stop would be high, while the parts where the middles of the cars would stop would be GO-accessibility height. Requires careful spotting of the train obviously, and depending on the lengths of the cars and trains and the exact precision of the spotting may or may not work geometrically.