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21st Century Operations Using 21st Century Technologies

Model Systems Engineering Documents for Central Traffic Signal Systems

Appendix F: Standardized Communications Protocol Stack Interface Diagrams

Figure 9

Figure 9. Communications Protocol Standards Example for the NTCIP-SNMP Triple of Traffic Signal System → traffic detector control → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 10

Figure 10. Communications Protocol Standards Example for the NTCIP-STMP Triple of Traffic Signal System → traffic detector control → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram
Figure 11

Figure 11. Communications Protocol Standards Example for the NTCIP-SNMP Triple of Traffic Signal Field Equipment → traffic detector data → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 12

Figure 12. Communications Protocol Standards Example for the NTCIP-STMP Triple of Traffic Signal Field Equipment → traffic detector data → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 13

Figure 13. Communications Protocol Standards Example for the XML Triple of Traffic Signal System → road network conditions → External Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 14

Figure 14. Communications Protocol Standards Example for the NTCIP-DATEX-ASN Triple of Traffic Signal System → road network conditions → External Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 15

Figure 15. Communications Protocol Standards Example for the XML Triple of External Traffic Signal System → road network conditions → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 16

Figure 16. Communications Protocol Standards Example for the NTCIP-DATEX-ASN Triple of External Traffic Signal System → road network conditions → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 17

Figure 17. Communications Protocol Standards Example for the RSE Field to Field Triple of Railroad Field Equipment → track status → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 18

Figure 18. Communications Protocol Standards Example for the RSE Field to Field Triple of Traffic Signal Field Equipment → rail crossing operational status → Railroad Field Equipment based on the CTSS Project Architecture Diagram

Figure 19

Figure 19. Communications Protocol Standards Example for the NTCIP-SNMP Triple of Traffic Signal Field Equipment → signal control status → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 20

Figure 20. Communications Protocol Standards Example for the NTCIP-STMP Triple of Traffic Signal Field Equipment → signal control status → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 21

Figure 21. Communications Protocol Standards Example for the XML Triple of Traffic Signal System → device data → External Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 22

Figure 22. Communications Protocol Standards Example for the NTCIP-DATEX-ASN Triple of Traffic Signal System → device data → External Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 23

Figure 23. Communications Protocol Standards Example for the XML Triple of External Traffic Signal System → device data → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 24

Figure 24. Communications Protocol Standards Example for the NTCIP-DATEX-ASN Triple of External Traffic Signal System → device data → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 25

Figure 25. Communications Protocol Standards Example for the XML Triple of Traffic Signal System → device status → External Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 26

Figure 26. Communications Protocol Standards Example for the NTCIP-DATEX-ASN Triple of Traffic Signal System → device status → External Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 27

Figure 27. Communications Protocol Standards Example for the XML Triple of External Traffic Signal System → device status → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 28

Figure 28. Communications Protocol Standards Example for the NTCIP-DATEX-ASN Triple of External Traffic Signal System → device status → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 29


Figure 30

Figure 30. Communications Protocol Standards Example for the NTCIP-STMP Triple of Traffic Signal System → signal control commands → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 31

Figure 31. Communications Protocol Standards Example for the NTCIP-SNMP Triple of Traffic Signal System → signal control device configuration → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 32

Figure 32. Communications Protocol Standards Example for the NTCIP-STMP Triple of Traffic Signal System → signal control device configuration → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 33

Figure 33. Communications Protocol Standards Example for the NTCIP-SNMP Triple of Traffic Signal System → signal control plans → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 34

Figure 34. Communications Protocol Standards Example for the NTCIP-STMP Triple of Traffic Signal System → signal control plans → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 35

Figure 35. Communications Protocol Standards Example for the NTCIP-SNMP Triple of Traffic Signal System → signal system configuration → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 36

Figure 36. Communications Protocol Standards Example for the NTCIP-STMP Triple of Traffic Signal System → signal system configuration → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 37

Figure 37. Communications Protocol Standards Example for the Legacy Short Range Communications Triple of Public Safety Vehicle → local signal preemption request → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 38

Figure 38. Communications Protocol Standards Example for the Legacy Short Range Communications Triple of Transit Vehicle → local signal priority request → Traffic Signal Field Equipment based on the CTSS Project Architecture Diagram

Figure 39

Figure 39. Communications Protocol Standards Example for the NTCIP-SNMP Triple of Traffic Signal Field Equipment → local signal preemption request → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 40

Figure 40. Communications Protocol Standards Example for the NTCIP-STMP Triple of Traffic Signal Field Equipment → right-of-way request notification → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 41

Figure 41. Communications Protocol Standards Example for the XML Triple of Traffic Signal System → device control request → External Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 42

Figure 42. Communications Protocol Standards Example for the XML Triple of External Traffic Signal System → device control request → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 43

Figure 43. Communications Protocol Standards Example for the NTCIP-DATEX-ASN Triple of External Traffic Signal System → device control request → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 44

Figure 44. Communications Protocol Standards Example for the NTCIP-STMP Triple of Traffic Signal Field Equipment → signal fault data → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 45

Figure 45. Communications Protocol Standards Example for the NTCIP-SNMP Triple of Traffic Signal Field Equipment → signal fault data → Traffic Signal System based on the CTSS Project Architecture Diagram

Figure 46

Figure 46. Communications Protocol Standards Example for the NTCIP-DATEX-ASN Triple of Traffic Signal System → device control request → External Traffic Signal System based on the CTSS Project Architecture Diagram
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