: A £64.5 million project to electrify the route was completed on June 6, 1993 .
The concept for a unified line began in 1970 when the newly formed sought to integrate local rail services. The project, approved in 1971 and officially opened on May 8, 1978 , merged existing tracks into a single through-service: Birmingham Cross City Line
The line continues to be a central part of Birmingham's identity and transport strategy: : A £64
: On November 28, 1988, the line was extended to Lichfield Trent Valley . : Initially, services utilized refurbished Class 116 Diesel
: Initially, services utilized refurbished Class 116 Diesel Multiple Units . 2. Expansion and Modernization (1980s–1990s)
: Services reached Redditch in 1980, eventually increasing from hourly to half-hourly due to high demand.
: It linked Four Oaks in the north to Longbridge in the south via Birmingham New Street .