You can't use a CAD file directly for the road. You need to convert it to one of the supported road formats. We are only using crg formats these days, but that requires that you download the (free) crg toolkit for Matlab and use that to convert the road data.
AS an alternative you can use the triangular rdf format. There are many examples on the shared acar.cdb that you can use to find out how that format works.
You can't use a CAD file directly for the road. You need to convert it to one of the supported road formats. We are only using crg formats these days, but that requires that you download the (free) crg toolkit for Matlab and use that to convert the road data.
AS an alternative you can use the triangular rdf format. There are many examples on the shared acar.cdb that you can use to find out how that format works.