Dylan pretends the scars in pavements ('sidewalks') are train tracks. The scars are everywhere, like the utility covers that Dylan spotted in August. And like the utility covers, Daddy had never noticed them before. The scars are probably the result of digging to lay pipes, with asphalt filling. They are up to ten yards long and about eight inches wide. This width, eight inches, is perfect for Dylan's scooter wheels. His scooter is the engine, and a parent's bike or pram acts as the carriage. There are only rails and no ties on these tracks, Dylan observes. Every twenty yards or so, the scars intersect large rectangles. Dylan calls these rectangles 'level crossings'. He talks about level crossings several times each day. Daddy is not even quite sure what a level crossing is.