The RoadXML© format is an XML file format which is designed to answeGr the needs of many simulator applications:

The RoadXML© format is an XML file format which is designed to answeGr the needs of many simulator applications:

Golly, never knew such a format existed. I wonder if there's one for Trains and Railways?
http://www.road-xml.org/index.php?option=com_content&view=article&id=61&Itemid=56