sentences:  A section of the route from Halfpenny House Junction (where the A6108 meets the unclassified road from Catterick Garrison) is known locally as the Tank Road.The British Army training estate beyond Catterick Garrison to the west is used for Infantry and armoured transport training.The road was widened and flattened out, which means high speeds can be attained in an area where the roads are narrow and slow going.