: 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
As the line gained popularity, its reach and infrastructure were significantly upgraded: : A £64
: On November 28, 1988, the line was extended to Lichfield Trent Valley . The story of the is one of transformation,
The story of the is one of transformation, evolving from a series of disconnected 19th-century railways into the backbone of the West Midlands' suburban transport network. 1. Origins and Assembly (1970s)
: A fleet of Class 323 Electric Multiple Units (EMUs) was introduced, becoming the line's iconic rolling stock for decades, though they are currently in the process of being replaced by newer Class 730 trains. 3. Modern Evolution (2018–Present)
: It linked Four Oaks in the north to Longbridge in the south via Birmingham New Street .