In August 2016, Amtrak approved the contract with Alstom to make 28 new Avelia Liberty train sets to replace the Acela on the Northeast Corridor with delivery by 2021. The new sets will be capable of running at speeds of up to 186 mph but will initially be limited to 160 mph. Amtrak will be upgrading tracks along the corridor to allow these sets to run at that speed. The new trainsets will have more passenger seating and improved interior amenities as compared to the current Acela equipment.