The British Rail Class 222, commonly marketed as the Meridian, is a high-speed diesel-electric multiple unit designed for intercity and long-distance regional services. It is capable of 125 mph (200 km/h) and was produced in a short series of 27 trainsets. The design emphasizes rapid acceleration, onboard comfort and flexible train lengths to suit a range of routes.
Design and characteristics
Class 222s are diesel-electric multiple units: each trainset carries diesel powercars that generate electricity for traction motors. Sets were built in several formations to match demand and platform lengths, typically comprising multiple intermediate coaches with driving cabs at both ends. Interiors include a mix of standard and first-class seating, luggage areas and customer amenities intended for journeys of one to three hours.
Production and origin
The units were manufactured by Bombardier Transportation and introduced in the early 2000s. They were developed from the same family of high-speed DMUs that includes the Voyager and Super Voyager series, but with differences in internal layout, gearing and suspension to suit specific intercity duties.
Service history and operations
Class 222 trains entered service with operators on the Midland Main Line and related routes, providing high-speed connections between London and cities in the East Midlands and northern England. Over time they have been operated by successive franchisees and are currently part of East Midlands Railway's fleet for key intercity services. Their flexibility in formation makes them useful for peak and off-peak scheduling.
Notable features and distinctions
- Top speed of 125 mph (200 km/h), suitable for mainline intercity running.
- Diesel-electric transmission (diesel engines powering electric traction motors).
- Part of the broader Bombardier Voyager family but with specific interior and performance choices for Meridian duties.
- Used primarily on the Midland Main Line and regional services in the East Midlands.
While only a modest number were built, Class 222s remain an important part of regional high-speed rail in central England, balancing speed, onboard comfort and operational flexibility on non-electrified sections of the network.