The company I work for has a service agreement with Anaheim Union High School District to maintain the refrigeration units on delivery trucks used to deliver food to various school cafeterias. I noticed warning signs on the Anaheim Branch of the U.P. warning of remote controlled locos working trains on the branch. When I saw them I wondered how they could get away with operating remote control locos in the city without any fences around the right of way to keep children away?