Abstract
 Equitable Fee Collection Using Enhanced Impervious Surface Determination Track: State and Local Government Author(s): Lauri Sohl Residents of Sioux Falls, South Dakota, pay their tax burden in many ways. One way is through the storm drainage fee, which is based on the amount of impervious cover per parcel. The amount of impervious cover is determined by two key variables: land use and parcel area. However, a wide range in impervious cover is seen for the same land-use assignments. To ascertain the amount of impervious cover more realistically, the city merged high-resolution orthophotography with high resolution satellite imagery, resulting in a dataset with the higher resolution of the orthophotography but with the spectral coverage of the satellite imagery. These datasets were used as input to determine impervious surface area per parcel via automated feature extraction. The resultant product is used as an additional tool to determine the amount of storm water runoff per parcel, resulting in a fair and balanced storm drainage fee. Lauri Sohl City of Sioux Falls GIS 224 W 9th St PO Box 7402 Sioux Falls , SD 57104-7402 US Phone: 605-367-8625 Fax: 605-367-4605 E-mail: lsohl@siouxfalls.org |
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