Shuttle buses will replace a portion of RTD’s A Line commuter train to Denver International Airport on Saturday for maintenance.

The shuttles will replace the train between the 40th Avenue & Airport Boulevard/Gateway Park Station and DIA from 3 a.m. to 8:15 a.m., according to an RTD news release.

RTD crews will perform maintenance on controls near Peña Boulevard and on overhead lines that power the trains.

The A Line will operate as normal between Union Station and 40th Avenue & Airport Boulevard/Gateway Park Station.

RTD officials encourage customers to plan ahead and prepare for extra time for bus shuttle transfers to or from the airport.