GISI Foundation case studies
GISI Foundation · Put your knowledge to work in context.
The GISI Foundation credential is an entry-level GIS certification intended for people who are moving into geospatial work or who need to demonstrate a solid grounding in the discipline. It suits recent graduates of geography, environmental science, planning, or IT programs, technicians adding spatial skills to an existing role, and analysts who use maps and location data but have never studied the underlying theory. The GISI Foundation case studies are 5 cases and about 4,157 words.
1Web Map Acreage and Buffer Discrepancy in a Trail-Access Project
A regional parks department is updating a trail-access map and calculating mown acreage for 240 meadow parcels. Field crews collected 1,850 trailhead and trail-point GPS locations in a web mapping app that stores and displays data in EPSG:3857.
838 words, about 4 min2Mobile Clinic Siting with Raster Service Areas and Census Tracts
A county health department must rank 18 census tracts for a mobile clinic. Analysts have a 100 m population raster, a 30 m land-cover raster, a 10 m DEM, and five candidate clinic points.
856 words, about 4 min3Publishing Legacy Street Centerlines for Public-Safety Dispatch
A city open-data team plans to publish a 1998 street centerline file with 4,800 segments for a public-safety dispatch app. The metadata states positional accuracy of ±12 m, but staff later conflated the file to 2018 orthophotos; 7% of sample addresses geocode to the wrong block.
798 words, about 4 min4Floodplain Exhibit Pressure Before a Rezoning Hearing
A GIS analyst at a consulting firm is preparing a floodplain exhibit for a rezoning hearing. The analyst's preliminary HEC-RAS run places 14 parcels inside the 100-year floodplain.
832 words, about 4 min5Transit Dependency Poster and Web Map for a Public Hearing
A regional transit agency is producing a 36 x 48 inch poster and a web map for a public hearing on a proposed bus rapid transit line. The corridor has 42 stops, 9 municipalities, and a study area of 1,200 census block groups.
833 words, about 4 min