Niemeier, Debbie A., Thirayoot Limanond, K. Lakshminarayanan, Jennifer Morey, Joel P. Franklin (1999) Using GIS to Estimate Unpaved Road Miles and Vehicle Activity on Unpaved Roads (Volume II). Institute of Transportation Studies, University of California, Davis, Research Report UCD-ITS-RR-99-03
Volume II is organized into four sections. Following the introduction, five main goals of using the GIS for this study are specified in Section 2. Section 3, "Data Collection and Preparation" describes the GIS coverages required for our GIS analysis. Section 4, "Methodologies" explains how the five main goals stated in Section 2 were implemented using the GIS.