BOULDER, Colo. (CBS4) – The Regional Transportation District on Tuesday unveiled its Flatiron Flyer buses for a new service between Denver and Boulder.

The Flatiron Flyer will travel the 18 miles of express lanes along Highway 36. There will be six stops at Park-n-Ride stations.

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(credit: CBS)

(credit: CBS)

The buses can carry up to 57 passengers. RTD estimates the route will serve 11,000 passengers daily.

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“Today we are celebrating one step along the way, which is the new Flatiron Flyer buses, the branded buses,” Boulder Mayor Matt Appelbaum said. “It’s an important component, but there’s a lot more to come.”

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The 59 Flatiron Flyer buses will be delivered by the end of summer. The service is expected to launch in January.