I have access to ArcGIS with a basic license at work. I have been tasked with creating a boundary outline of every route polyline feature whose shape is also based along the city street network base layer. Aside from manually tracing polygons for a boundary or selecting the base line layer to symbolize one, is there any quicker method to facilitate this?
I've attached an example to provide a visual. The red line features are an example of what our routes look like, and the advanced looking blue boundary (Courtesy of my advanced Paint skills) shows what I'd like to create: