Rapid passenger growth is driving big projects at Denver International Airport, from a $650 million renovation of the iconic tented terminal building to $1.5 billion in gate expansions on all three concourses.

But those gains in capacity won’t mean much if the airport’s nearly 23-year-old automated train system can’t get passengers to the gates in time to catch their flights.

DIA officials recently outlined plans both to expand the system’s capacity, with a net addition of 10 train cars coming in 2020, and to boost its reliability. Both are seen as vital as DIA projects an increase in passenger traffic from more than 60 million this year to 80 million by 2030.

The Denver City Council is expected to approve a part of these plans Monday night.

Read more at denverpost.com.