New Scientist - August 3, 2011. What should you do when alarms are ringing, the building is rapidly filling with smoke and the crackle of fire is just round the corner? Follow the robot, say Ayanna Howard and Paul Robinette, researchers at the Center for Robotics and Intelligent Machines at the Georgia Institute of Technology in Atlanta, who want to create smart roving exit signs. . . .Howard and Robinette say the robots should be at least as tall as a human, so that they can be seen in a crowd, and styled after familiar exit signs with lights and arrows to guide the way.