Marriott union defeat viewed as an anomaly. (Hotel Employees Restaurant Employees Union Local 57)(Special Report: Hotels, Conventions & Travel)

But observers keep watch on upcoming DoubleTree talks

DOWNTOWN - The eyes of the hospitality industry will be keenly focused on upcoming negotiations between the local hotel employees union and the Doubletree Hotel - especially after Marriott City Center workers voted to provide their services without representation at the end of last year.

However, last month's Marriott vote is probably an anomaly, according to some observers.

"It's not like a cold, I don't think it's contagious," said Marick Masters, a professor of business at the University of Pittsburgh.

The DoubleTree negotiations, scheduled for April, will be the first bargaining session for the Hotel Employees Restaurant Employees Union Local 57 since Marriott workers voted down union representation.

That election might contribute to the image that Pittsburgh is no longer …