Traffic and Travel Information (TTI) - TTI messages via cellular networks - Part 2: Numbering and ADP message header; English version CEN/TS 14821-2:2003— 24 стр.
Traffic and Travel Information (TTI) - TTI messages via cellular networks - Part 3: Basic information elements; English version CEN/TS 14821-3:2003— 93 стр.
Traffic and Travel Information (TTI) - TTI messages via cellular networks - Part 4: Service-independent protocols; English version CEN/TS 14821-4:2003— 44 стр.
Traffic and Travel Information (TTI) - TTI messages via cellular networks - Part 7: Performance requirements for onboard positioning; English version CEN/TS 14821-7:2003— 34 стр.
Traffic and Travel Information (TTI) - TTI messages via cellular networks - Part 1: General specifications, English version CEN/TS 14821-1:2003— 43 стр.
Traffic and Travel Information (TTI) - TTI messages via cellular networks - Part 8: GSM-specific parameters; English version CEN/TS 14821-8:2003— 16 стр.