Demographics & Dynamics of Transit Inaccessibility in San Diego

Final Presentation | UP 206A, Fall 2010

Peter Ruscitti

December 7, 2010

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Initial Questions (Midterm)…. Found that many employment centers are not within

reasonable range of San Diego County transit system 111,000 people with no access to any transit at workplace

Questions:

Who lives in these inaccessible areas?

What is the pollution cost of this inaccessibility?

Should the San Diego MTS/NCTD expand bus routes to serve the transit deserts?

Conclusions…. Nearly 850,000 people live in transit deserts

Compared to 110,000 who work in them

Transit deserts tend to be areas of higher income Generally higher elevation

Transit deserts have same rates of vehicle accessibility as transit-accessible areas

Among transit deserts, the areas most needing alternate commute options have the highest income Thus unlikely to switch to transit (especially bus) even if offered

Skills Applied… Modeling Metadata Measurement/Analysis Original Data Hotspot Analysis Geoprocessing Buffering Index Inset Maps Graduated Symbology Aggregating Attribute Fields Boundary Sub-Sets Selections

Models Utilized…

Both models were usedfor raster manipulationduring hotspot analysis

Metadata…