The overall objective of the EfficientFlow project was to improve the flow of goods and passengers through the two corridors of Gävle-Rauma and Stockholm-Turku in Baltic Sea Region by implementation of Sea Traffic Management concept. The project consisted from 2 work packages (WP). WP1 related to “Port flow optimisation” and developed Port Activity Application for improved data exchange within the port and between ships and ports in Gävle-Rauma corridor. WP2 related to “Ship flow optimisation” and developed the EF Tool and Efficient Flow Hub Service for improved route exchange process in a real time between ship-ship and ship-ports. The scope and purpose of the final D.T2.12 document is to collect and analyse information from main deliverables what have been created and reported during EfficientFlow project under WPT2 "Ship flow optimisation" in corridor Stockholm-Turku, duration from 2018 to 2021.