PHOENIX -- The Phoenix Sky Train reached the million-passenger mark Monday, about three months after the first train departed.
Sky Harbor initially estimated 7,000 riders per day would take the train, but since it opened April 8, the Sky Train has exceeded expectations.
"Our numbers right now are about 10,000 people ride the Sky Train each day," said Heather Lissner, a City of Phoenix spokeswoman.
The driverless trains transport travelers between the light-rail station at 44th and Washington streets, the airport's East Economy parking lot and Terminal 4. It operates seven days a week, 365 days a year and is free of charge.
"People are very satisfied with the services that are offered with the Sky Train and it's something new and different to," Lissner said.
By early 2015, Sky Train will extend to Terminal 3 with a walkway to Terminal 2.