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SAE J2735-Draft-Rev29 [issued: 12-11-08]
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250 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
Packet Format Diagram
Figure 2: Packet Format
The ASN presention of the message ( TravlerIformaiton ) can be found in seciton 5 of document (along
with its XML form) .
Traveler Advisory Example
This sample packet contains two data frames, and they are both advisories that indicate traffic is reduced to
one lane. The first advisory has two circular activation regions, begins on January 10th 2008, lasts for 30
days, and warns drivers to use the right lane. The second advisory has one circular activation region,
begins on January 10th 2008, lasts for 5 days, and warns drivers to use the left lane.
Both advisories have the optional LRMS-type location populated. Some vehicles may have the capability
to present this information to the driver. Some vehicles with on-board maps may also be able to use this
data to determine the affected geographic location of the advisory.
Both advisories also support the optional off-board URL for a descriptive image. Again, some vehicles
may be able to retrieve this image through an alternative mechanism – WiMax, WiFi, Cellular modem, etc.
or by way of the TCIP/IP stack over DSRC.