Rail engineers will begin tests on Wednesday evening to display live travel information, with plans to fully activate the service from next week.
Transport secretary Heidi Alexander welcomed the change as part of plans to alleviate some of the issues faced at Euston, particularly at this time of year, when the festive period brings an increase in passengers.
She said: “We’ve been clear the station simply hasn’t been good enough for customers, and that’s why we recently tasked Network Rail with making immediate improvements to address crowding and give passengers the experience they deserve”.
In October, watchdog London TravelWatch warned that passengers at Euston were being put in danger by high levels of overcrowding.
It has also said last-minute announcements meant passengersrush to platforms, and staff “appear overwhelmed by the sheer numbers of people”.
Network Rail said recent changes to allow passengers to board trains earlier have allowed passengers to board “at a more relaxed pace” and created a calmer station environment, especially during peak times.
Station operators have also committed to expand concourse space and upgrade toilet facilities, streamline operations during disruptions and improve infrastructure and train service reliability.