Tram 4 does not run to Merisotilaantori 

Tram 4 does not run to the Merisotilaantori terminus between 28 June and 27 August due to pipe replacement works on Merikasarminkatu. The tram will operate under route number 4T whose terminus is by the Katajanokka terminal.

A replacement bus service 4X operates Mon-Fri from 5.55am to 9pm at 12-15 minute intervals between Merisotilaantori and Katajanokka terminal. The bus runs along Katajanokanranta.
The last departure from Merisotilaantori is at 9.05pm

On weekends the bus operates from 7am to 7pm at 12-15 minute intervals.

During the diversion period the following bus stops in Katajanokka are out of service: Puolipäivänkatu (stops 0415 and 0416), Vyökatu (0413 and 0414) and Matruusinkatu (0421).
From Katajanokka terminal the trams operate to the timetable of tram 4/4T.

The timetables of bus 4X change on 2 August along with the timetables of tram 4T.Both tram 4T and bus 4X switch to autumn timetables on 16 August.

 Map