Vehicle information exchange needs for mobility applications : version 3.0.

Details

• Creators:
  McGurrin, Michael
• Corporate Creators:
  Noblis, Inc.
• Subject/TRT Terms:
  • Intelligent transportation systems
  • Messages (Communications)
  • Mobility
  • Vehicle to vehicle communications
  • Dedicated short range communications
  • Wireless communication systems
• Publication/ Report Number:
  FHWA-JPO-13-065
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Intelligent Transportation Systems Joint Program Office
• Abstract:
  Connected Vehicle to Vehicle (V2V) safety applications heavily rely on the BSM, which is one of the messages defined in the Society of Automotive ; standard J2735, Dedicated Short Range Communications (DSRC) Message Set Dictionary, November 2009. The BSM is broadcast from vehicles ; over the 5.9 GHz DSRC band. Transmission range is on the order of 1,000 meters. The BSM consists of two parts: ; • BSM Part 1: core data elements, including vehicle position, heading, speed, acceleration, steering wheel angle, and vehicle size, transmitted at ; an adjustable rate of about 10 times per second ; • BSM Part 2: a variable set of data elements drawn from an extensive list of optional elements. Some of these elements are periodically included ; in a subset of BSM messages at a frequency that is TBD while others are included if certain triggering events occur, e.g., ABS activated. They ; are added to Part 1 and sent as part of the BSM message, but are transmitted less frequently in order to conserve bandwidth ; Based on existing documentation of the high priority Dynamic Mobility Applications (DMA), an assessment was made of the information that needs to ; flow to and from vehicles in order to support these applications, as well as the connected vehicle road weather program. The goals were determine the ; extent to which the Basic Safety Message (BSM) can support those needs and what additional data elements and messages would be required. ; The primary findings of the analysis are: ; 1.The Basic Safety Message (BSM), with Part 1 transmitted approximately 10 times per second over Dedicated Short Range Communications ; (DSRC), is useful for a number of mobility applications, but is not solely sufficient for any of the envisioned mobility applications. ; 2. TheBSM message and DSRC communications are required for some mobility applications, such as the M-ISIG bundle of applications. ; 3. A subset of the BSM Part 1 and Part 2 data elements provides the majority, but not all, of the data that needs to be sent from vehicles to the ; infrastructure. This data must either be continually sent to infrastructure systems, at some lower update rate, over an alternative mobile wireless ; technology, such as cellular data, or be cached on-board the vehicle and then sent in a message containing both current and stored snapshots.
  More +
• Format:
  PDF
• Funding:
  DTFH61-11-D-00018
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26870/dot_26870_DS1.pdf
• File Type:
  [PDF - 955.91 KB]
• Collection(s):
  Federal Highway Administration ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ff43584889427e48b19fdbb69cd34163ab817f1afc97928417e7fbdf66cb6ddaff799b2254860fa36e9b3c1fffae270496067bca372f983dbc2ca21cf4fcda0b