Analysis of Potential Significant Flooding Impact on Public Transit
Author: Produced by myself.
Created: January 31st, 2019 with ArcMap 10.6.1.
Projected coordinate system: NAD 1983 HARN StatePlane Washington South FIPS 4602 Feet.
Data: Esri, HERE, Garmin, OpenStreetMap contributors, and the GIS user community. Pierce County Data Portal. UWT GIS.
A full PDF map of my analysis can be downloaded via the link at the bottom of the page.
Figure 1
I analyzed an elevated floodplain scenario primarily in the greater Tacoma area, in which transit routes would be compromised due to significant flooding. Due to increased whether variability in our region it is important for us to know what to prepare for.
Figure 2
The extent of pierce county and where the specific elevated flood plains that I analyzed are. This is the base information used to determine which of the established routes would be compromised.
Figure 3
The exact routes that would be most severely compromised and have the highest risk of flood hazard based on the floodplain data above.
Figure 4
The routes that have a mid grade risk percentage when the risk of hazard spectrum is divided into thirds.
Figure 5
The routes that have the lowest grade risk percentage when the risk of hazard spectrum is divided into thirds.