 The cities of Montreal, Longueuil and Westmount had assumed the entire cost of construction and equipment of $213.7 million ($1.6 billion in 2016).Montreal became the seventh city in North America to operate a subway.The 1960s being very optimistic years, Metro planning did not escape the general exuberance of the time, and a 1967 study ″Horizon 2000″ imagined a network of of tunnels for the year 2000.