One hundred and fifty jobs are being cut at train operator London Midland.
The firm announced today that the management positions will be lost, mainly from its head office in Birmingham as part of a restructure.
Bosses say passengers will not be affected by the changes. Rising costs are being blamed.
Passengers on London Midland services from Birmingham New Street are experiencing long delays tonight because of signalling problems.
A spokesman for London Midland said: "All services into and out of Birmingham New Street are subject to a delay. We are running a half-hourly service on the cross-city line as a result of the congestion."
London Midland services between Birmingham New Street and Redditch have been suspended due to problems with line side equipment at Kings Norton. Replacement buses are being arranged between Longbridge and Redditch.
Alterations to journey timetables are planned for routes including:
Coventry to Nuneaton
Liverpool Lime Street to Birmingham New Street / Crewe
Birmingham New Street to Walsall / Rugeley Trent Valley
Wolverhampton to Birmingham New Street
Birmingham New Street to Worcester / Hereford
- Stratford upon Avon/Leamington Spa to Stourbridge Junction/Worcester/Great Malvern (via Birmingham Snow Hill)
Passengers hit by delays and cancellations on London Midland services are to get a £7 million package of benefits.Read the full story ›
The new timetable for London Midland trains can be viewed here.
Train drivers are continuously moving to companies who offer better conditions, according to Railfuture – an independent campaign for a better network, which is leaving London Midland short staffed.
Hundreds of trains have been cancelled since October, leading to London Midland issuing a new timetable to deal with a driver shortage.
London Midland train company is issuing a new timetable today, which it hopes will help with recent staffing problems.
Hundreds of trains have been affected since October, with lists of the cancelled trains appearing daily on their website.
The company blamed the loss of 30 drivers from the company within a short space of time - training replacements can take up to a year.
London Midland spokesman Daniel Skaife said: "The new timetable will kick in which gives us an opportunity to look at the way work is rostered so we can resolve the issue."
Seven new train drivers will also be starting work this month.