Original sentence: Network Rail plans to install European Rail Traffic Management System (ERTMS) in-cab signalling on the Great Western line, which is a pre-requesite to allowing the new Super Express trains to run at 140mph
Edited sentence: Network Rail plans to install European Rail Traffic Management System (ERTMS) in-cab signalling on the Great Western line, which is a pre-requisite to allowing the new Super Express trains to run at 140mph