From December 9th, travel time between Oxford and London will rapidly fall as commuters find themselves with a new, high-speed route.The service will come as a welcome to commuters, seeing journey times cut by 15 minutes on earlier services, and up to 50 minutes later on in the day. The knock-on benefits include increased train services between Didcot Parkway and Paddington being increased at busy times of the day.The first trains will depart at 6:03am and arrive around 7am, seating 282 people, with the number rising to 515 by February.