There's nothing more frustrating than being caught in traffic. This is why Navman makes TMC (Traffic Message Channel) available on your MY30 device. TMC is a system for alerting you to traffic problems on major roads and optionally re-routing you should you wish. Delivering real time traffic information to your Navman via RDS-TMC (Radio Data System - Traffic Message Channel) - an FM based radio signal - you can see and be alerted to known problems such as accidents, congestion and roadworks. Your Navman will also prompt you to revise your route - or even re-route you automatically to take you on the best alternative route to your destination. The TMC service is currently available in: Sydney Melbourne Brisbane Perth Adelaide Gold Coast Canberra