This news item expired on Tuesday, December 31, 2013 so the information below could be outdated or incorrect.
At bridges, tunnels, trestles, railroad rights-of-way, and railroad yards, you will see large NO TRESPASSING signs. This means YOU.
If you attempt to hike on the tracks, a bridge, or a trestle or even walk near the tracks, you can be arrested and fined. But most of all it is dangerous because you never know when a train may be approaching.