The busway was constructed on an old railway. For most of the way has two bus lanes and a cycle pathalthough there is a short section of single track controlled by traffic lights at Trumpington.The busway runs from St Ives (park & ride) to the outskirts of Cambridge and then from Cambridge Railway Station to Trumpington.
Road crossings are controlled by traffic lights.
The intermediate stops have low platorms and shelters.
The name signs at the stops are rather small and there are no announcements or displays on the buses which only stop by request.