Cattle stop

Cattle stops are a fiendish use for old railway tracks. They not only halt the progress of cows they pretty much stop all hoofed beasts. A harsh yet amusing way to wake a passenger in your car, is to speed up as you go over one. The bone shaking vibration and noise will either rudely rouse them from their slumber or induce a myocardial infarction.
Note the way the power poles on the ridge are like strolling body builder robots.