1. A robot for use in a rail yard, the robot comprising: a navigation system configured to move the robot about an area; a manipulation unit configured to at least one of grasp items or provide an adjustable view for collection of information; a visual recognition unit comprising at least one detector configured to acquire presence information within at least a portion of the area; and a processing unit operably coupled to the navigation system, manipulation unit, and visual recognition unit, the processing unit configured to: determine a presence of a human within at least one predetermined range of the robot using the presence information from the visual recognition unit; determine at least one control action responsive to determining the presence of the human within the at least one predetermined range; and control at least one of the navigation system or manipulation unit to implement the at least one control action.