Liverpool Street to Southend Victoria is a 34 miles long line which connect Southend to London. The crouch valley line is a 16.5 mile long route. So together they are 50.5 miles long Crouch valley line is known for the scenic views you can get all year round. Locos Class 321 Crouch valley lines loco Also class 321 They have 4 cars Also there is TFL rail running between London and Shenfield Class 315 and class 345 Class 345’s would be hard to licence so probably just class 315’s