A traffic jam on the tram tracks from the mainland of central Helsinki, Finland, to the Katajanokka peninsula, caused by a lorry having broken down in the middle of the tram tracks. Two consecutive trams of the line 4 (Munkkiniemi-Katajanokka) were trapped right there. I had no other option than to get off the tram and walk all the rest of the way to eastern Katajanokka, late in the evening, in heavy snowfall.