The Seattle Center Monorail is operated by a private contractor, Seattle Monorail Services (SMS), which took over operation from the City in June 1994. Operating profits, which can be as much as $750,000 per year, are split between the City and SMS. From: http://en.wikipedia.org/wiki/Seattle_Center_Monorail

Service operates daily, and trains depart every 10 minutes from the station at Seattle Center en route to Westlake Center Mall, at Fifth and Pine Street. Each trip takes two minutes to cover the approximately one-mile route. Every train can carry up to 450 passengers per trip. The monorail provides two-train service during special events and activities, with departures every five minutes or less. From: http://en.wikipedia.org/wiki/Seattle_Center_Monorail