AbstractSpeedy Online Ridership Analysis at the Chicago Transit AuthorityTrack: Transportation Author Transit agencies are rich with data extracted from automatic passenger counter (APC) technology but have struggled at providing usable information for companywide analysis. The CTA has designed a database specifically for GIS that provides fast, informative online mapping and analysis. Using ArcGIS Server, SDE, and some basic programming borrowed from the ArcGIS Resource Center, the online app is served up through an internal website by non-developers for non-GIS users. Ridership analysis will never be the same. APC and automated fare collection (AFC) data are combined to produce standardized, average daily passenger boarding and alighting information for over 12,000 bus stops. Data are available at many levels including stop, single-route, multiple-route, route-segment, corridor, zone, or system-wide; quarterly data enables important temporal analysis. From the cubicle, to field locations, to the boardroom, online mapping has removed the last barrier to widespread and regular use of critical data by our entire agency. Scott Wainwright Chicago Transit Authority 567 W. Lake St Chicago, Illinois 60680 United States Phone: 312-681-4243 E-mail: swainwright@transitchicago.com Elizabeth Donahue Chicago Transit Authority 567 W. Lake Chicago, Illinois 60680 United States Phone: 312-681-4259 E-mail: edonahue@transitchicago.com |