and two trains to and from Manchester Piccadilly on weekdays, and one on Saturdays to/from Manchester Airport in the current (May to December 2020) timetable. Transport for Wales Rail services towards Cardiff are usually operated by Class 175 diesel multiple unit trains, with the exception of the Premier Service which is operated by a rake of Mark 4 coaches hauled by a Class 67 diesel locomotive. Services towards Birmingham International are usually operated by Class 158 diesel multiple unit trains, allowing them to be coupled with services off the Cambrian Coast railway line upon arrival at Shrewsbury, to provide additional capacity between Shrewsbury and Birmingham. Another train formed of Mark 3 coaches hauled by a Class 67 locomotive also forms one of the weekday services to and from Manchester Piccadilly. All Avanti West Coast services are operated by Class 221 Super Voyager diesel-electric multiple unit trains. On Sundays the service is hourly each way from mid-morning, but running mainly between Holyhead and Crewe, with select services extended to Cardiff Central, Birmingham International and Manchester Piccadilly. Avanti West Coast provide three up-direction trains to London Euston on a Sunday, as well as one up-direction train between Crewe and Holyhead, and three down-direction services to Holyhead. The PlusBus scheme operates from this station, where for a small additional fee, an add-on bus ticket can be purchased alongside a rail ticket allowing journeys to be made using the services of most of the major bus operators in and around the wider area. This allows easy access by public transport to Ysbyty Gwynedd as well as many of the popular local attractions, such as Bangor Pier, Penrhyn Castle, Aber Falls and Zip World in Penrhyn Quarry, Bethesda, all of which are inside the Bangor PlusBus area. Easy interchange with all local bus services is possible, with many services departing from the bus stops a very short walk away on Holyhead Road. Future services By December 2022, Transport for Wales plans to start & terminate its direct services to and from Manchester Airport via Manchester Piccadilly at Bangor. This will be in addition to the current service level, and will be made possible when the new hourly Llandudno-Liverpool Lime Street via the Halton Curve services commence. All Transport for Wales services serving Bangor by this time are expected to be operated by new CAF Civity diesel multiple-unit trains, except the Holyhead-Cardiff Premier Service which is