One additional Class 315 train would be retained within the broader rolling stock fleet under this option
(i) the six additional 5-car units ordered would be used to deliver the NLL/WLL service, Another 4-car unit would be released by leasing an additional unit to run the Romford to Upminster service.
Interesting - it looks like this means mixed operation (378/ 710) on the NLL/WLL, unless they can be confined to the WLL Clapham Jct - Willesden Jct shuttles. It also it looks like Romster will get the 315. This could end up being the last PEP-type unit in the country, as the rest of them are all on the way out
313 - to be replaced by 717s on the GN, and a cascade on Southern? 314 - Scotrail cascade initiated by the new 385s 315 - Crossrail/ 710 455/7 (trailers) - SWR - to be displaced by new 701s 507, 508 - Merseyrail 777s on order