Transit Accessibility of Major Employment Centers in San Diego

Midterm Presentation | UP 206A, Fall 2010

Peter Ruscitti

November 2, 2010

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Midterm Summary… Found that many employment centers are not within

reasonable range of San Diego County transit system 111,000/663,0000 people with no access to transit/rail

transit at workplace The 2,000-foot buffer is based on:

City of San Diego, Transit-Oriented Development Design Guidelines, Ch. 1 http://www.sandiego.gov/planning/documents/pdf/trans/todguide.pdf

FHWA, Pedestrian Safety Guide for Transit Agencies, Ch. 4 http://safety.fhwa.dot.gov/ped_bike/ped_transit/ped_transguide/ch4.cfm

Only looking at urbanized area of San Diego County Prevents rural outliers from skewing statistics

For Future Investigation… We know how many people work in these “transit

deserts,” but who lives in them? Compare accessibility data with census tract data on population,

income, employment, transit usage, etc.

What is the pollution cost of this inaccessibility? Estimate carbon cost of driving trips to/from inaccessible

employment centers, scaled for ridership estimates

Should the San Diego MTS/NCTD expand bus routes to serve the transit deserts? Compare the cost of bus-route expansion to the cost of current

pollution, and the size/needs of the under-served populations Expansion of bus routes would give more access to the system,

but travel times could still remain prohibitively high for many

Skills Applied Inset Maps Graduated Symbology Aggregating Attribute Fields Attribute Sub-Sets Selections Boundary Sub-Sets Selections Distance Buffering Geoprocessing