Tram routes 2 and 4 will be diverted in the direction of Olympia Terminal and Katajanokka on the nights of Sunday 12 May and Monday 13 May from midnight due to track work on Mannerheimintie. The trams will serve the section of route between Mikonkatu and Lasipalatsi (along Mannerheimintie). In the direction of Länsi-Pasila and Munkkiniemi, the trams will run as usual.
Tram 2 will run to Olympia Terminal via the Central Railway Station along. The tram will run from Mannerheimintie via the Central Railway Station and Mikonkatu to its normal route along Aleksanterinkatu.
Tram 4 will run to Katajanokka via the Central Railway Staiton. The tram will run from Mannerheimintie via the Central Railsay Station, Kaisaniemi, Liisankatu and Snellmaninkatu to its normal route along Aleksanterinkatu.