 Hollow ways can of course occur in any firm-ground trackway, not just in ridgeway sections.On level sections of a ridgeway, banks are less common' perhaps because travellers avoided large puddles and constantly changed the courses, or because any banks eroded.From the 19th century onwards, old ridgeways which had not been converted into highways were often revived by hiking clubs or tourism authorities, marked out as scenic trails for walking, horse-riding or mountain biking far from the disturbances of motor traffic.