Rute suggestion, Line 4 is fully manual, and Line 11 is Semi-automatic (is an extension for line 4) Trains in Line4: TMB Serie 2100 and 9000 (Transports metropolitans de Barcelona): TMB Serie 2100: https://www.bing.com/images/search?view=detailV2&ccid=9feYterA&id=56E6AF109C8D47C7DB0073B45E9911B289DE5463&thid=OIP.9feYterAQtXBeCxFhaS6LgHaFj&mediaurl=https://wefer.com/imatges/tmb/unitats/tmb2100sg.jpg&exph=394&expw=525&q=Serie+TMB+2100&simid=607987087977745868&ck=9510E4094C385E75AD4278C0C9932B84&selectedIndex=2&FORM=IRPRST&ajaxhist=0 TMB Serie 9000: https://www.bing.com/images/search?view=detailV2&ccid=Ev3iwTpO&id=33F88B9FCB5D4D7C0E1B9DB4B38BD89CB6A12298&thid=OIP.Ev3iwTpO6Th9yz9q2VBgSwHaEK&mediaurl=https://i.ytimg.com/vi/cQKZjX0iZCg/maxresdefault.jpg&exph=720&expw=1280&q=Serie+TMB+9000+linia+4&simid=607991344340799359&ck=8E4E4CD862CBA728448569BB135E497C&selectedIndex=0&FORM=IRPRST&ajaxhist=0 Trains in Line 11: TMB Serie 500 TMB Serie 500: https://www.bing.com/images/search?view=detailV2&ccid=bcAvTI5k&id=9B9198C8E29BDFBD6D8A2AF80AB7EE2125C4D0D4&thid=OIP.bcAvTI5krGuPJvFQ1_64SAHaFj&mediaurl=https://i.ytimg.com/vi/BhYVcCRHETk/hqdefault.jpg&exph=360&expw=480&q=+TMB+Serie+500&simid=608010396836103197&ck=CD63058C7716F3A6552115938B96B80D&selectedIndex=0&FORM=IRPRST&ajaxhist=0
I would rather see metro lines 2 or 3. But I would absolutely love seeing some Rodalies stuff, (combined with renfe) there are plenty of these lines running through Barcelona. Badalona, Estacio Françe, Sants Estacio, Catalunya, Pg. Graçia, Castelldefels ... so many opportunities. But Barcelona metro can also be made, would be interesting with the depots.
Full Barcelona local map Tx > ATM Tram L1-5//9-11 > TMB Metro L6,7,8,12 > FGC Local Sx,SSx > FGC Rx > Rodalies (Renfe) Renfe lines excluded