About 1,650 Canadian Pacific Railway Ltd workers represented by the Unifor union have set a Feb. 15 strike deadline to back contract demands, Unifor said on Tuesday. Members, including safety and maintenance staff, voted 97 percent at meetings held over the last week to give the union a strike mandate. Bargaining, which started in September, is set to resume in Calgary this week after a holiday break. The union said talks have been challenging, in part because of “excessive disciplinary measures in the workplace”. “CP looks to reach a negotiated settlement and talks continue,” the railway said in an emailed statement. The workers’ last contract expired on Dec. 31. Unifor is Canada’s biggest private sector union.