Information that depends more on the scientist's feelings and thoughts than on actual observations is said to be

Loss in amenity , biodiversity , which are most difficult to assess

With any turning vehicle, the rear wheels follow a shorter path than the front wheels. the longer the vehicle is, the greater the difference will be. truck drivers initially swing out before making a turn. what isn't shown in this illustration is as car straightens out, the front wheels must travel a greater distance and the tail end drags on the shortest path.