Back-to-school season means more kids on the streets. When you drive near schools in Princeton, you should slow down and stay alert. Children often walk or ride bikes, and they do not always pay attention to traffic. Watch for crossing guards and follow their directions. Yellow flashing lights mean you need to reduce your speed right away. Red flashing lights on a bus mean you must stop and wait until the lights turn off. These rules keep young students safe as they travel to and from class each morning and afternoon.