Disruption at busy London station 'to last all day' after signalling issueA signalling system issue at a London station is disrupting services throughout the day.
More of the new DLR trains have arrived for testing, but passenger launch delayedNew DLR trains in the UK are being tested but won't be operational until next year due to signalling system delays.
Major delays to Dart and Northern commuter rail passengers due to signalling faultIrish Rail suspended Dart and Northern Commuter services due to signalling issues, leading to major delays even after operations resumed.