Trains and roads look like they have lots in common but the trade-offs in signalling and network design are completely different, and horrendously inconsistent.With Vic Hudson and John Chidgey.Miscellaneous Links: What is a tram? First electric tram General Motors streetcar conspiracy Railway signal Railway signalling Australian railway signalling Support Causality on PatreonEpisode Gold Producer: 'r'.Episode Silver Producer: Chris Stone.