Basic Lane Type Information


The DSRC MAP message is used to convey all types of lane level details in the DSRC messages.  While the primary topic of this web site is to support developing intersection level maps, the intended use of the MAP message is much broader.  All roadwork layout, including when incidents with detour level details are needed (from simple incidents to long complex pre-planed events), are intended to be handled by the same basic MAP primitives.  Other DSRC messages use and link to MAP messages ad fragments to convey geometric information.  A common lane-level representation is key to this approach.

What Types of Lanes are there?

In order to understand the lane system used by the MAP you need to first understand that there are several “lane types” which share a common data format called the Generic Lane.  It may surprise you to learn that some of these physical objects are not really vehicle driving lanes at all.

Please see this article for a summary review of the supported Lane types found in J2735.


The Generic Lane type, the basics:

All lane types use the Generic Lane as their core building block.  On top of this common base, additional informational elements suited to the need of each type are provided. And a regional extension process provides a way for local deployment to additional content to this system as well.

The generic Lane type, the basics:  Geometry and Attributes

All lanes have common elements…   these consist of the path and …etc.

This is a 2nd level page that will link to many other pages once a high level summary is provided

Additional Lane Geometry Articles

provide short summary and links


Additional Lane Attribute Articles

provide short summary and links


Confused about the Different Lane types, read here.

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