I can't legally copy all of these proprietary materials for you, but look here at TheLearningPit.com under "Student RSLogix Programming Exercises". There are two sets of exercises for the Traffic Light: Applying Timers, and Applying Word Compare Instructions.
http://www.thelearningpit.com/lp/doc/index.html
http://www.thelearningpit.com/lp/doc/index.html