Improving Data Quality, Accuracy, and Response in On-Board Surveys : Application of Innovative Technologies Oliveira, Marcelo G Simas ; Casas, Jesse
Series: Transportation Research Record: Journal of the Transportation Research Board ; 2183Publication details: Washington DC Transportation Research Board, 2010Description: s. 41-48ISBN:- 9780309160544
Current library | Status | |
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Statens väg- och transportforskningsinstitut | Available |
Transit agencies conduct origin-destination on-board surveys periodically to gather information regarding travel patterns and demographic data of their users and to collect customer satisfaction information. These surveys constitute a highly valuable means of obtaining important information on an agency's customers to provide a basis for effective transit planning and for regional travel demand modeling efforts. This paper describes the application of innovative technologies in the data collection process to improve data quality, data completeness, and data collection management. This includes the simultaneous collection of boarding and alighting count data at the stop level using Global Positioning System-enabled personal digital assistants, association of distributed surveys to boarding locations, and a web-based sample and productivity management system. These technologies allow for automatic collection of boarding location, arrival and departure times, and transit trip times. An imputation procedure was developed to derive the most likely alighting location of each collected sample. Joint application of these technologies reduces survey length and thereby minimizes respondent burden.