This PDF document was created by the IndyGIS staff who maintains our street centerline and intersection layers. It outlines in detail the City's model for these layers, and how they are maintained. The document was originally written in 2001, and is updated from time to time (the latest version is from November, 2007). Since we have received numerous requests for it, we have provided a link here for you to download it (9 MB).
Street Centerline Maintenance Procedures