ITS Standards Support for signal preemption request
| Type | SDO | Title | Doc ID |
|---|---|---|---|
| Message/Data | Consortium of AASHTO, ITE, and NEMA | Object Definitions for Actuated Traffic Signal Controller (ASC) Units | NTCIP 1202 |
| Communications Protocol | Consortium of AASHTO, ITE, and NEMA | Octet Encoding Rules (OER) Base Protocol | NTCIP 1102 |