This is a map I created in ArcMap 10.4 in which I used Network Analysis tools to create a 5 minute service area analysis for a given location (the local Safeway supermarket) in Alamo, CA. The service area parameters are a 5 minute drive-time on 35 mph roads with no other restrictions. The map also shows address locations for about 270 addresses in the city limits that was created using ArcMap’s Geo-Location tools.
Tag: ArcMap
Mount Shasta, Improved DEM
In this map I’ve applied a Low-Pass filter to remove unwanted noise from a hillshade of a DEM of Mount Shasta and then used Map Algebra in the Raster Calculator to combine the filtered hillshade with an unfiltered hillshade to replace areas where detail was lost. I then applied and fine-tuned a stretched symbology treatment to give the impression of a snow-capped peak.
Wildfire Risk Analysis
Increased risk for wildfire is associated with West, Southwest & South facing landscapes with slopes of 60 percent or greater. Starting with a USGS 7.5 minute DEM, I applied Hillshade and Aspect analyses and used Raster Calculator conditional statements to isolate the areas that matched the risk factors. This map shows those slopes that match one or both risk factors.
Viewshed Analysis
This is a viewshed analysis for 4 proposed cellular antenna tower locations in Walnut Creek, CA. Individual tower viewsheds can be seen in the main map area and total viewshed area for all 4 locations is shown in the inset. Basemap is a USGS 7.5 minute Digital Elevation Model with Hillshade.