Such a knowledgeable man, as demonstrated in his underground line books, but especially in his research papers. Indeed, without the compilation of history and detail in his research paper "Automatic Junction Working and the Programme Machine", I would never have contemplated starting work on the simulator. Always really enjoyed having technical chats with him, and I still owe him a pint
Thank you for sharing this sad news. As well as other books, I thoroughly enjoyed his two volume history of the Metropolitan District Railway. Having been reading books on the Underground since the late 1970s, it was great to discover more about the subject.
Michael Travelling on the Central line from the 1960s until 2012.
Sad news,and a great loss for not just railway historians....his Metadyne site covered all sorts of nooks and corners of interest,which I have found to be an incredibly useful resource for work as well as my London Underground researches.