This tool was developed by the University of California Pavement Research Center (UCPRC) as a supplement to the UCPRC guidelines entitled Guidance on the Conversion of Severely Distressed Paved Roads to Engineered Unpaved Roads and Guidance on Performance-Based Material Selection and Blending for Unpaved Roads.

The objective of this development was to produce an Internet-based tool to automate the calculation of blending ratios of materials to ensure optimal performance of unpaved roads.

If you have data from field experiments that contradicts this design procedure, or you have suggestions for improving the procedure, please send an email with the information to dustcontrol@ucdavis.edu. All feedback on the tool will be welcomed.