I am looking to generate a variety of drive time polygons using ESRI's road network data for a project, but want to verify if a subset of roads in my project area will be considered in the analytics. Is there a list/map/dataset that will inform me about what roads/segments are contained within ESRI's road network dataset and are used in a drive time analysis using ESRI's data? The only information regarding "coverage" I could find was here: https://developers.arcgis.com/rest/routing/network-coverage/
