http://bobbea.com/expo-86/history.html
Seattle, Montreal and Brisbane, all seemed to make a giant urban leap after their turn of hosting a world's fair. Yet, somehow after Expo-86, Vancouver was still so hemmed in as to what it could do after hosting a World Expo. Short trains, mostly narrow bridges for general traffic, no bus-bridges and a stumpy building height limit, all fit into the slow-growth agenda. Of course several decades later, it was realized that neither Greater Vancouver or BC in general, could build a wall or generate a force-field to keep people out. However, by continually building half-size infrastructure, that at least symbolically shows how urban planners can ignore the demands of properly building for future growth. The big question is, where has the money for proper size urban infrastructure gone over the decades?
https://bcanuntoldhistory.knowledge.ca/1980/expo-86 The unofficial inside joke for Expo 86, was to not provide proper long-range transportation planning & development of infrastructure. Today, Vancouver is one of the best examples of what not to do if you want to have an efficient, high capacity transportation system.
https://www.thecanadianencyclopedia.ca/en/article/expo-86
https://placesthatmatter.ca/location/expo-legacy-science-world
The scale of Seattle, Montreal and Brisbane in the 2020s is so far beyond Vancouver & its restrictive agenda, of red tape & Gordian-knots.