Allegro is a high-speed train service, operating AlstomVR Class Sm6 trains, between Helsinki, Finland, and St. Petersburg, Russia. The service started on 12 December 2010. The aim is to reduce travel time between Helsinki and Saint Petersburg: before Allegro, the journey time was 5½ hours; currently it is 3 hours and 27 minutes and there are plans to bring it down to 3 hours. The name Allegro is a musical term for a quick tempo, thereby suggesting "high speed".
Route
Allegro connects the following stations:
St. Petersburg
Vyborg
Vainikkala
Kouvola
Lahti
Tikkurila
Helsinki
The trains also stopped previously in Pasila like every other passenger train from and to Helsinki, but this stop was discontinued on 27 March 2016. Vainikkala and Vyborg are special stations: on trains bound for Finland, passengers are not allowed to leave the train at Vyborg, as the train only stops to pick up passengers; and on trains bound for Russia, passengers are not allowed to leave the train at Vainikkala, for the same reason.
Passport and Customs controls
On board the train, each passenger is visited by Finnish passport control and customs officers, as well as their Russian counterparts. Finnish border control takes place while the train is travelling between Kouvola and Vainikkala, while Russian border control takes place while the train is travelling between Vyborg and St Petersburg. If boarding/exiting at Vainikkala or Vyborg, the checks take place inside these stations.
Vehicles
The Allegro service is operated using Class Sm6 trainsets built by Alstom. Sm6 stands for electric multiple unitmodel 6. The Sm6 appears similar to VR's earlier Sm3 Pendolino series, but is based on the fourth generation 'Pendolino Nuovo' or 'New Pendolino' designs and its construction differs from the Sm3 in many ways. The top speed of the train in passenger traffic is and the train can run at a speed of at least between Tikkurila and Luumäki and Vyborg and St. Petersburg after extensive rail works. The aim is to reduce travel time between Helsinki and Saint Petersburg from 5½ hours to 3 hours. The travel time as of 2017 was 3:27. The Sm6 is equipped to operate on both the Finnish and the Russian railway networks. The units have dual-voltage electrical equipment able to use both the Finnish 25 kV 50 Hzalternating current and the Russian 3 kV direct current electrification. The wheelsets are built to run at over speeds on both the Finnish and the nominally slightly narrower Russian gauge, and the doors are equipped with a retractable step to make boarding from both Finnish high and Russian high platforms easy. The units are equipped for both the Finnish and Russian railway technical systems, which differ substantially.
On board services
Food: there is a restaurant coach, which serves food during the whole journey, except for the segment between Vyborg and St Petersburg, when the train is in customs surveillance zone.