In order for the I-ETMS System to traverse a route it needs to be aware of all the potential stop targets and operation rules on that route. A track database in the form of a SubDiv ﬁle provides the I-ETMS system with all the geographic geometry and attribution needed to identify stop targets and attributes. The track database also provides operating rules and speeds as additional information for the I-ETMS to determine the correct behaviors required for that route and track. Wabtec provides tools and services to create the track database and SubDiv ﬁle for the I-ETMS system. The intent of this document is to deﬁne the services we provide within the PTC space.