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SAE J2735-Draft-Rev29 [issued: 12-11-08]
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This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
Figure 9: Shape Point Region
Extremely Large Regions
Circular regions should be used to designate extremely large areas. A circle can be set as large as an entire
state or county. Setting the DE_HeadingSlice to 0xFFFF ensures that any vehicle within the region will
consider the corresponding traveler information to be active.
In the following example, a weather advisory needs to be issued that is relavent to the entire southeastern
portion of Michigan. The following table represents a circular region centered around Green Oak,
Michigan with a radius of 100 kilometers. The region is valid for any direction of travel. Figure 10
graphically demonstrates the region.