A Ring_road has some advantages, but its not a total solution.
Some examples...
https://en.wikipedia.org/wiki/Sardar_Patel_Ring_Road, Ahmedabad, Gujarat, India.
https://en.wikipedia.org/wiki/A10_motorway_(Netherlands)
https://upload.wikimedia.org/wikipedia/commons/c/c7/Berlin_BAB_10.svg
https://en.wikipedia.org/wiki/Brussels_Ring
https://upload.wikimedia.org/wikipedia/commons/1/14/Traffic_Bukarest.svg
https://en.wikipedia.org/wiki/Ring_Road_(Cairo)
https://en.wikipedia.org/wiki/Stoney_Trail, Calgary. https://www.alberta.ca/calgary-ring-road This was possible, because Calgary doesn't have the same restrictions that Greater Vancouver has. Alberta is able to do more, simply because its not bound by the B$ red tape that BC is under.
https://en.wikipedia.org/wiki/Route_9_(Hong_Kong)
https://en.wikipedia.org/wiki/Inner_Ring_Road,_Hyderabad , https://en.wikipedia.org/wiki/Outer_Ring_Road,_Hyderabad
https://upload.wikimedia.org/wikipedia/commons/3/37/Autopistam40.svg, Madrid
https://en.wikipedia.org/wiki/M80_Ring_Road, Melbourne
https://en.wikipedia.org/wiki/Moscow_Ring_Road , https://en.wikipedia.org/wiki/Third_Ring_Road_(Moscow)
https://upload.wikimedia.org/wikipedia/commons/3/3b/Svincoli_GRA_Roma.svg
https://en.wikipedia.org/wiki/Sydney_Orbital_Network
https://upload.wikimedia.org/wikipedia/commons/b/b4/Rocades_de_Paris_%282024%29.png
https://en.wikipedia.org/wiki/Outer_Ring_Road_System, Singapore
https://en.wikipedia.org/wiki/Capital_Beltway, Washington, DC.
https://en.wikipedia.org/wiki/List_of_ring_roads
https://en.wikipedia.org/wiki/Ring_road#Canada Of course Greater Vancouver doesn't make the list. It's always amazing to see what so many other cities are able to do, simply because they don't have the hassles & restrictions that BC has.