NEMA, AASHTO, and ITE have published National Transportation Communications for ITS Protocol 1209 v02, Object Definitions for Transportation Sensor Systems. NTCIP 1209 v02 includes requirements for communicating between TSS field devices and host or central systems that control and monitor TSS. TSS data describes certain traffic parameters including accurate, near real-time information on traffic flow. It may be acquired using field devices that rely on various technologies to detect ...This story is related to the following:Trade Associations