Bletchleyite
Veteran Member
It depends on what you mean by light rail, modern lightweight railcars (Such as Stadler FLIRT, Siemens Desiro, and Stadler GTW.) are often referred to as light rail/hybrid rail in the US such vehicles or remanufactured alternatives such as class 230 would be ideally suited for those branch lines, especially considering that peak demand on some of these lines can justify three two-car class 150 sets being coupled together yet normal demand can barely justify a single two-car class 150 set.
I don't doubt that FirstGroup's purchase of the remaining 230 fleet and spare units etc was with the potential to use these on branches, particularly the Thames Valley, if the work is successful. In particular the Tube style interior in a three-car unit would be very well suited to services with very high peak loadings but quiet at other times.