Advanced Messaging Concept Development Basic Mobility Control Message
datahub.transportation.gov | Last Updated 13 May 2024Contains all Basic Mobility Control Message (BMCMs) generated during the Advanced Messaging Concept Development (AMCD) field testing program. While there is no specific standard in existence that addresses the content of a BMCM, the following format was derived to control the configuration and content of BMMs requested from the vehicle. All BMCMs are generated by the VCC Cloud server and transmitted to OBU clients through either a DSRC or cellular communications channel.
This dataset has the following 16 columns:
| Column Name | API Column Name | Data Type | Description | Sample Values |
|---|---|---|---|---|
| Message ID | message_id | number | : BMMs are sent from the OBU packed into a container message that can contain up to four separate data snapshots. This is the ID of the container message that contained the BMM as it was transmitted to the server. | 38 1 37 39 52 view top 100 |
| Time Sent | time_sent | number | The time at which the message was sent from the VCC Cloud server to the OBU in milliseconds UTC time. | 1479238898852 1479260079078 1479260379090 1479259960752 1479259201062 view top 100 |
| OBU ID | obu_id | number | The ID of the OBU that received the message for the current communication sequence. | 27 37 21 86 32 view top 100 |
| Time Received | time_received | text | The time at which the message was received by the OBU in milliseconds UTC time. Empty | view top 100 |
| Mode of Transmission | mode_of_transmission | number | An indication of which mode of transmission was used to transmit the message (DSRC or Cellular). If received via DSRC: 1 through 114 = The ID of the RSU used to forward the message to the server If received via cellular: 999999 = Cellular | 87 88 89 90 91 view top 100 |
| Requested BMM Data | requested_bmm_data | text | The status of all possible BMM data element request flags. This data item is a 24-bit field where, if a bit is set equal to one, the data element will be returned in BMMs generated by the receiving OBE. Bit0 = Lights Status Bit1 = Unused Bit2 = Wiper Status Bit3 = Braking System, Traction Control System, and Stability Control System Status Bit4 = Unused Bit5 = Unused Bit6 = Unused Bit7 = Precipitation Sensor Status Bit8 = Ambient Air Temperature Bit9 = Atmospheric Pressure Bit10 = Unused Bit11 = Unused Bit12 = Unused Bit13 = Unused Bit14 = Unused Bit15 = Unused Bit16 = Unused Bit17 = Unused Bit18 = Unused Bit19 = Unused Bit20 = Unused Bit21 = Unused Bit22 = Unused Bit23 = Unused | 000000000000000000001000 000000000000000000000001 000000000000000000000000 000000000000001110000100 000000000000001110000000 view top 100 |
| Periodic Triggering | periodic_triggering | number | The requested rate of trigger evaluation frequency. 0 = 0 sec (off) 1 = 300 sec 2 = 120 sec 3 = 90 sec 4 = 60 sec 5 = 30 sec 6 = 15 sec 10 = 1 sec (1Hz) 11 = 0.5 sec (2Hz) 12 = 0.2 sec (5Hz) 13 = 0.1 sec (10Hz) 14 = 0.01 sec (100Hz) | 13 12 11 6 14 view top 100 |
| Event Triggering | event_triggering | text | The requested event trigger type. Bit0 = Unused Bit1 = Unused Bit2 = ABS Activated Bit3 = Traction Control Loss Bit4 = Stability Control Activated Bit5 = Unused Bit6 = Unused Bit7 = Hard Braking Bit8 = Lights Changed Bit9 = Wipers Changed Bit10 = Unused Bit11 = Unused Bit12 = Unused Bit13 = Unused Bit14 = Unused Bit15 = Unused | 0000000000000000 0000001000000000 0000000010000000 0000000100000000 view top 100 |
| Triggering Latitude | triggering_latitude | number | The latitude of the center of the triggering geo area in degrees. | 0 38.9193035 38.9256088 38.9159966 38.9175025 view top 100 |
| Triggering Longitude | triggering_longitude | number | The longitude of the center of the triggering geo area in degrees. | 0 -77.2270773 -77.2254065 -77.2386360 -77.2321091 view top 100 |
| Triggering Range | triggering_range | number | The range from the center (radius) of the trigger geo area in which the trigger will fire in centimeters. | 0 10000 5000 view top 100 |
| Triggering Status | triggering_status | number | The status of the requested triggering control parameter. 0 = None 1 = Start Only 2 = Stop Only 3 = Start and Stop | 0 view top 100 |
| Requested Transmission Mode | requested_transmission_mode | number | The type of data transmission mode requested. 0 = None 1 = DSRC 2 = Cellular 3 = DSRC and Cellular | 3 view top 100 |
| BMM Pack | bmm_pack | number | The number of BMMs per packet (valid values are 1–4). | 1 2 4 3 view top 100 |
| BMCM Timeout | bmcm_timeout | number | The number of seconds the BMCM request shall remain active. | 0 60 view top 100 |
| Test No. | test_no | number | The AMCD test number the data was collected during | 1 4 3 6 5 view top 100 |