Crosswalk - woven-planet/opensafety-mbse GitHub Wiki

This is a marked or unmarked path where pedestrian traffic crosses through part or all of a Road Segment. In the simplest and most common case, the Crosswalk is a rectangular area beginning on one side of a Road Segment and stretching across it to the other (inner or outer side).

images/crosswalk/crosswalk-10.png

Not all Crosswalks are so simple! A Crosswalk may cross only a portion of a Road Segment, it may cross at an angle or follow some other shape. And in some cases no Crosswalk at all is marked, yet pedestrians cross anyway. See descriptions elsewhere in this subsystem for examples of odd crossing arrangements.

In at least one case, the crossing symbol may designate a path which is NOT an actual Crosswalk as defined here. This is the case of the pedestrian scramble:

images/crosswalk/crosswalk-20.png

This is simply a characteristic of an Angled Intersection.

Identifiers

1. ID
2. Inner access + Inner road segment + Outer access + Outer road segment

Ordinarily, Outer road segment value will match the Inner road segment attribute value since most Crosswalks connect internal to a single Road Segment. As pointed out in R51, however, it is conceivable that a Crosswalk might wander out of one Road Segment and into another in a large, oddly shaped Angled Intersection.

Attributes

ID

Each observed Crosswalk is assigned a unique id.

Type: Crosswalk ID, based on Nominal