Motorists traveling to Kansas City International airport will want to allow themselves more time, as construction on a new terminal is starting to slow traffic.

The airport authority announced that traffic between terminals B and C will be reduced to one lane, and the loop road that allows motorists to easily return to a terminal will be closed. The changes begin Wednesday.

The change to the loop road system, which runs near the FAA control tower, is expected to disrupt motorists who circle the area waiting for passengers on incoming flights to arrive. The airport authority said motorists waiting for passengers can park for free in the Cell Phone lot near the FAA tower, or can park in the economy parking lot for up to one hour without being charged a fee.

The road construction is part of the larger $1.5 billion project to build a new main terminal building at the airport. Construction began in March. The old terminal A building has now been demolished. Airport officials said other road changes will occur in the future, and that travelers to KCI should allow for extra time for at least the next year.