27 Jan The shortest increments of time known to humanity are the following, beginning with the most brief. We have created the Kids Solo service for children traveling alone: Our staff accompany your child and ensures his or her safety throughout the journey. For travellers who need a little extra help—pregnant women, minors, families with young children and seniors over 60—our door-to-train service is just the ticket. A personal travel assistant escorts you from your home to your seat in the train, and another reverses the process at your destination. Assistants can even help with.