Traffic and Traveller Information (TTI) - TTI messages via traffic message coding - Part 4: Coding protocol for Radio Data System - Traffic Message Channel (RDS-TMC) - RDS-TMC using ALERT Plus with ALERT C
The ALERT Plus function is an extension of the A1,FRT C function.While ALERT C covers event-orientated information to be conveyed by the RDS medium, ALERT Plus deals with status-orientated information to be conveyed by the same medium.