I occasionally travel down to Alton to visit the Watercress Line from Hereford, via Reading (RDG) to catch the 09.20 down to Alton (AON). The route planners show a change of trains at North Camp and a walk to Ash Vale to catch the service to Alton . If I change the route to via Ash , the arrival time at Alton is the same, and the ticket cost is the same , but it eliminates the about 1/3 mile walk . The return produces the same result . Why do the planners routing involve this walk , which some people may not be able to handle?