A cycle bus is a community-based initiative promoting active travel by bike for school children. A group of experienced volunteers, parents and teachers, escort groups of children to school by bike along a set route, on a set timetable, every day during school term. These marshals act essentially as a mobile segregated cycle lane, allowing children as young as 5, to cycle to school safely. The marshals each have key roles to fulfill to ensure the safety of the children. Marshals are at the front, rear, on the outside of the group as support, and at every major junction along the route.