I've been on a few "football specials" in my time, buses and trains, but back in the 50's (before my time!), Dundee used to have trams to do the job. This was when Dens attracted crowds of 20 to 30,000 regularly.
On match day, around 20 extra trams were laid on to take fans from Albert Square up to Dens. After dropping the crowd off at the ground, the trams would then turn around at a point in Moncur Crescent and trundle back down to the city centre to pick up some more supporters. This shuttle service would operate up until kick-off, then the trams would wait outside Dens until the game was over to take the fans back down town.
Below is some rare footage of the Dens Park football specials in full flow.