GB/T 27605-2021Dynamic traffic information exchange format for satellite navigation (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

This document replaces GB/T 27605-2011 "Satellite Navigation Dynamic Traffic Information Exchange Format", compared with GB/T 27605-2011 The main technical changes are as follows.

a) Modified the scope (see Chapter 1, Chapter 1 of the 2011 edition);

b) Deleted the normative reference document GB 50220-95 (see Chapter 2 of the 2011 edition);

c) Added normative reference documents (see Chapter 2);

d) Modify "DTI link" to "RTIC link" (see 3.1.8, 2011 version 3.1.8);

e) Modified abbreviations (see 3.2, 3.2 in the 2011 edition);

f) Modified the definition of the traffic information transmission model diagram and the location reference layer (see Figures 1 and 4.1, and Figures 1 and 4.1 of the 2011 edition);

g) Added location reference classification (see 5.1);

h) Amend "position reference" to "static position reference" (see 5.2, Chapter 5 of the 2011 edition);

i) Added dynamic position reference (see 5.3);

j) Modified Chapter 6 structure, added service coding format classification, added wireless network and digital broadcast traffic information service coding Format specification (see 6.2);

k) Modify the "road condition and travel time information format based on the line position reference" to "the road condition and travel time information format based on the static line position reference". Time information format" (see 7.1, 7.1 of the 2011 edition);

l) Modified the basic information structure of road conditions and travel time information (see 7.1.1 Figure 20, 2011 version 7.1);

m) Added the extended identifier 1 field in the road condition and travel time information format based on the static line position reference (see 7.1.6);

n) Modify the "extended identification/chain travel time" of the road condition and travel time information format based on the static line position reference to "extended Mark 2/link travel time" (see 7.1.10, 7.1.9 of the 2011 edition);

o) Modify the "extended logo" of the road condition and travel time information format based on the static line position reference to "extended logo 3" (see 7.1.11, 7.1.10 of the 2011 version);

p) Added format requirements for congested lane information (see 7.1.17);

q) Added the format requirements for forecasting time (see 7.1.18);

r) Modify "Traffic control and event information format based on line position reference" to "Traffic control and event information format based on static line position reference" Event information format" (see 7.2, 7.2 of the 2011 edition);

s) Modified the description of the event type, and revised the detailed code of general accidents in Table 27 "Detention of personnel during Spring Festival transport" to "Detention of personnel" (see 7.2.13, 7.2.13 of the 2011 version);

t) Modify "Parking guidance information format based on line position reference" to "Parking guidance information based on static line position reference" (see 7.3, 7.3 of the 2011 edition);

u) Modify the traffic event information format based on the point location reference to the traffic event format based on the static point location reference (see 7.3.26, 7.4 in the 2011 edition);

v) Added traffic information format based on dynamic location reference (see 7.3.27);

w) Modify the description of DTI to RTIC (see Appendix A, Appendix A of the 2011 edition).

1 Scope

This document specifies the requirements for the satellite navigation dynamic traffic information exchange format, including general rules, location reference, and traffic information service coding format. Mode, traffic information encoding format, and roaming switching information.

This document is applicable to dynamic traffic information transmission under FM subcarrier, digital broadcasting, and IP wireless network environment. For multiple transmissions Provide technical basis for the implementation of traffic information services under the mode.

2 Normative references

The content of the following documents constitutes an indispensable clause of this document through normative references in the text. Among them, dated quotations Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 2260-2007 Code for administrative divisions of the People's Republic of China

GB/T 2312 The basic set of Chinese character coded character set for information exchange

GB/T 20612.2-2006 Traffic and Traveler Information (TTI) TTI Message Encoded by Traffic Message Part 2: Broadcast Number According to system-traffic message channel (RDS-TMC) event and information coding

GB/T 20612.3-2006 Traffic and Traveler Information (TTI) Part 3 of TTI message encoded by traffic message. ALERT-C positioning reference

GB/T 25070 Information Security Technology Network Security Level Protection Security Design Technical Requirements

GB/T 51328 Planning Standard for Urban Comprehensive Transportation System

IEC 62106-4:2018 64MHz to 108.0MHz frequency band VHF/FM sound broadcasting radio data system [Radiodata system(RDS)-VHF/FMsoundbroadcastinginthefrequencyrangefrom64.0MHzto108.0MHz- Part 4: Registeredcodetables]

ISO /T S21219-22 Intelligent Transportation System TPEG2 Traffic and Travel Information Transmission Protocol Part 22: Open LR Location Reference [Inteligenttransportsystems-Trafficandtravelinformation(TTI)viatransportprotocolex-pertsgroup,generation2(TPEG2)-Part 22: OpenLRlocationreferencing(TPEG2-OLR)]

3 Terms, definitions and abbreviations