Tram 4 will have its terminus at the terminus of tram route 4T (stop number 0420) at the Katajanokka terminal form 15 May to 13 June due to track work on Merikasarminkatu.
Bus 4X will run from the terminal to the Merisotilaantori terminus of tram 4.
The same tickets are accepted on bus 4X as on trams, i.e. also mobile tickets and tram tickets purchased from ticket machines or with Travel Card are accepted. Also all other HSL tickets valid in Helsinki (Helsinki internal ticket, regional ticket, three-zone extended regional ticket as well as Helsinki internal and regional day tickets) are accepted on the bus.