Spotting feces on the train appears to be more of a regular occurrence lately. The jump in these incidents is a direct result of the recent record cold, when an increased number of homeless people used the round-the-clock nature of CTA service to seek shelter, agency spokesman Brian Steele said.



As a result, the CTA has increased nightly patrols with social service agencies to provide homeless people other options during unusually cold periods, Steele said. The Red and Blue lines are the only routes that run 24 hours a day.