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DENVER — RTD’s B Line is up and running again Thursday morning after passengers were stranded along the rails Wednesday night when the new line experienced its first problems.

The train line, which opened July 25, connects Westminster to downtown Denver. It is an 11-minute ride covering about six miles from Westminster Station to Union Station and costs $2.60 for a one-way ticket.

Passengers were stuck on the train for about 40 minutes. RTD claims the problem wasn’t really a B Line issue but a switching glitch in the rail yard at Union Station.

That caused all of the trains heading north to stop. RTD used buses to get passengers off the trains and to the Westminster Station. Service resumed about 7:30 p.m.

The trains used on the B Line are the same as the new A Line to Denver International Airport. The train to the airport has been plagued by switching and electrical problems.