In 1977, the newly elected government partially lifted the moratorium on the extension of Line 2 (Orange Line) and the construction of Line 5 (Blue Line).

Line 2 (Orange Line) was gradually extended westward to Place-Saint-Henri station in 1980 and to Snowdon station in 1981.
As the stations were completed, the service was extended.
In December 1979 Quebec presented its "integrated transport plan" in which Line 2 (Orange Line) was to be tunnelled to Du Collège station and Line 5 (Blue Line) from Snowdon station to Anjou station.
The plan proposed no other underground lines as the government preferred the option of converting existing railway lines to overground Metro ones.
The mayors of the MUC, initially reluctant, accepted this plan when Quebec promised in February 1981 to finance future extensions fully.
The moratorium was then modestly lifted on Line 2 (Orange Line) that reached Du Collège station in 1984 and finally Côte-Vertu station in 1986.
This line took the shape of an "U" linking the north of the island to the city centre and serving two very populous axes.

The various moratoriums and technical difficulties encountered during the construction of the fourth line stretched its realization over fourteen years.
This Line 5 (Blue Line), which runs through the centre of the island of Montreal, crossed the east branch of Line 2 (Orange Line) at the Jean-Talon station in 1986 and its west branch at the Snowdon) station in 1988.
 Because it was not crowded, the STCUM at first operated Line 5 (Blue Line) weekdays only from 5:30 am to 7:30 pm and was circulating only three-car trains instead of the nine car trains use on the other lines.
Students from the University of Montreal, the main source of customers, obtained extension of the closing time to 11:10 pm and then 0:15 am in 2002.
In 1977, the newly elected government partially lifted the moratorium on the extension of Line 2 (Orange Line) and the construction of Line 5 (Blue Line).
Line 2 (Orange Line) was gradually extended westward to Place-Saint-Henri station in 1980 and to Snowdon station in 1981. As the stations were completed, the service was extended. In December 1979 Quebec presented its "integrated transport plan" in which Line 2 (Orange Line) was to be tunnelled to Du Collège station and Line 5 (Blue Line) from Snowdon station to Anjou station. The plan proposed no other underground lines as the government preferred the option of converting existing railway lines to overground Metro ones. The mayors of the MUC, initially reluctant, accepted this plan when Quebec promised in February 1981 to finance future extensions fully. The moratorium was then modestly lifted on Line 2 (Orange Line) that reached Du Collège station in 1984 and finally Côte-Vertu station in 1986. This line took the shape of an "U" linking the north of the island to the city centre and serving two very populous axes.
The various moratoriums and technical difficulties encountered during the construction of the fourth line stretched its realization over fourteen years. This Line 5 (Blue Line), which runs through the centre of the island of Montreal, crossed the east branch of Line 2 (Orange Line) at the Jean-Talon station in 1986 and its west branch at the Snowdon) station in 1988.  Because it was not crowded, the STCUM at first operated Line 5 (Blue Line) weekdays only from 5:30 am to 7:30 pm and was circulating only three-car trains instead of the nine car trains use on the other lines. Students from the University of Montreal, the main source of customers, obtained extension of the closing time to 11:10 pm and then 0:15 am in 2002.
Montreal Metro