Tram routes 2, 3, 4 and 7 will be diverted on night of Monday 1 October and tram routes 2 and 3 on the night of Tuesday 2 October from midnight to the end of service due to track works carried out by the Senate Squeare.
Night of Monday 1 October
- Tram 2 will run from Lasipalatsi to Olympia Terminal using the route of tram 3: Mannerheimintie-Bulevardi-Fredrikinkatu-Laivurinkatu-Tehtaankatu-Laivasillankatu. The following stops will not be served: "Ylioppilastalo" (on Aleksanterinkatu), "Aleksanterinkatu", "Senaatintori", "Kauppatori" and "Eteläranta".
- Tram 3 will run from Olympia Terminal to Ylioppilastalo using the route of tram 2: Laivasillankatu-Eteläranta-Market Square-Katariinankatu-Aleksanterinkatu-Mannerheimintie. The following stops will not be served: "Kaivopuisto", "Neitsytpolku", "Kapteeninkatu", "Eiran sairaala", "Viiskulma", "Iso Roobertinkatu", "Fredrikinkatu", "Erottaja", "Ylioppilastalo" (on Mannerheimintie)
- Tram 4 will run to Katajanokka via Liisankatu. Aleksanterinkatu will not be served.
- Tram 7 will run to Pasila direc along Kaisaniemenkatu. Mikonkatu, Aleksanterinkatu and Snellmanninkatu will not be served.
Night of Tuesday 2 October
- Tram 2 will from Lasipalatsi to Olympia Terminal using the route of tram: Mannerheimintie-Bulevardi-Fredrikinkatu-Laivurinkatu-Tehtaankatu-Laivasillankatu. The following stops will not be served: "Ylioppilastalo" (on Aleksanterinkatu), "Aleksanterinkatu", "Senaatintori", "Kauppatori", "Eteläranta"
- Tram 3 will run from Olympia Terminal to Ylioppilastalo using the route of tram 2: Laivasillankatu-Eteläranta-Market Square-Katariinankatu-Aleksanterinkatu-Mannerheimintie. The following stops will not be served: "Kaivopuisto", "Neitsytpolku", '"Kapteeninkatu", "Eiran sairaala", "Viiskulma", "Iso Roobertinkatu", "Fredrikinkatu", "Erottaja", "Ylioppilastalo" (on Mannerheimintie)