The iconic ‘mind the gap’ warning is needed on the London Underground as hundreds ... However, this gap is only thought to be an issue with D stock trains due to the central door position ...
The London Underground’s book exchanges could be ... after a nearby library was being refurbished and wanted to offload some ...
on modified London Underground 1960 Stock. And those trials initially took place on the District line. A 1960 stock tube train, the kind that was first equipped with ATO, to allow automated running.