8 Jun 2011
Overview

Rail storage yards for a major US metropolitan transit system were being repeatedly broken into during nighttime hours and experiencing repeated vandalism of cars. The perpetrators were able to climb down from an adjacent bridge and gain access to the yard undetected. The existing video system was only able to display evidence of the break-ins after they occurred. The low-light environment also reduced the chances of identifying the vandals. 

There were sizable costs associated with the intrusions. Restoring an individual rail car after an act of vandalism or graffiti is many thousands of dollars; such repairs also took the cars out of circulation, leading to significant lost revenue. Graffiti concerns, while costly, also highlight potentially more severe security vulnerabilities for the transit system overall.