EDMONTON – For some industries the need for a sudden and massive influx of skilled workers in a remote area is the norm, not the exception. For 30 years the PTI GROUP has specialized in building, transporting and maintaining remote site services, particularly in Alberta’s oil sands region. At times this involves building full-fledged “mini-cities” for up to 5,000 workers, providing everything from housing, communications, utilities and an array of other support services…more at Canadian Mining Journal