13.5 Object material

Objects placed on a road, such as patches, may consist of a different material than the surrounding road. Therefore, the material of the object may be defined separately. In ASAM OpenDRIVE, it is possible to describe the surface, roughness, and friction. The values depend on the application and are not defined in ASAM OpenDRIVE.

Elements in UML model

<material> element

In ASAM OpenDRIVE, the outlines of objects are represented by the <material> element within the <object> element.

UML class: t_road_objects_object_material
XML tag:   <material> (Multiplicity: 0..*)

Describes the material properties of objects, for example, patches that are part of the road surface but deviate from the standard road material. Supersedes the material specified in the <road material> element and is valid only within the outline of the parent road object.

Table 94. Attributes of the <material> element
Name Type Use Introduced Description

friction

t_grEqZero

optional

Friction value, depending on application

roadMarkColor

e_roadMarkColor

optional

1.8.0

Color of the painted road mark.

roughness

t_grEqZero

optional

Roughness, for example, for sound and motion systems, depending on application

surface

string

optional

Surface material code, depending on application

Rules

The following rules apply to material for objects:

  • The material of objects may differ from the surrounding road.

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