Print - Sofia Subway to Run on New Year's - Novinite.com The Sofia subway will be running through the New Year's night, on every 20 minutes. The metropolitan municipality revealed that subway train cars will be passing through on every 20 minutes on the night of December 31 - January 1, reports the daily Trud. Other transportation means will also be available. Tram lines 5, 7, 10, 12, 18, 20, and 22, along with trolleybuses 1, 4, 5, 7, and 9 will be running every 30-45 minutes. Bus lines 11, 76, 78, 94, 309, 310, and 604 will also be available. The transportation schedule will be more spread out than usual until noon on January 1.