Advanced Traveler Information Systems (ATIS) provide dynamic safety, delay and other information to travelers to help plan their trip (pre-trip) as well as during their trip (on route). The dissemination of traveler information is typically done through internet, cellular phones, telephones, kiosks, television, radio, in-vehicle systems, and fixed road-side ITS (Intelligent Transportation Systems) elements such aschangeable message signs, highway advisory radio, etc.
