More inexplicably urgent traffic proposals from the 50s

As it is now

  The city desperately needed four new elevated overpasses in May 1959 or else the head of Traffic Director Jean Lacoste might have exploded.
   The fancy, curvy thing pictured above was proposed for the what's now known as Jean Talon and Winter Coat (Cote des Neiges), although it was then described as Namur, which no longer goes anywhere near Cote des Neiges.
  The four "grade separations" as they were called, would have cost the city $9.5 million.
  The other three supposedly-required structures were at St. James and St. Remy, Bridge and Wellington and a last one at Cote des Neige and McGregor, see link above for illustration on that one.