- Effectiveness of Non-Response Survey Data Compensation using Route Assignment
- Lee, Jeong-Taek ; Lee, Byung-Joo ; Sung, Soo-Ryeon ; NamGung, Moon ;
- Journal of The Korean Society of Civil Engineers, volume 22, issue 2D, 2002, Pages 219~228
Abstract
Disaggregate behavioral model has been researched since the late 1970s, and it has been improved in various ways. However the data adopted in establishing a model are still the raw data that are collected through questionnaire surveys represented by Person Trip Survey, and the accuracy and efficiency of the data have not been discussed thoroughly yet. Thus the objectives of the present research are to compensate the non-response data in a questionnaire survey using the GIS-adopting Network Method, and to develop a method to obtain the compensated subjective data efficiently. The present research aimed at efficient use of questionnaire surveys, and suggested a data compensation method utilizing subjective data from questionnaire surveys and objective data from such as traffic size investigation. In particular, the non-response data included in subjective data is compensated by subjective data calculated in GIS. The results we, first, that it was possible to prepare data of no significant difference from the subjective data by converting the objective data obtained from the network into one close to subjective data. Second, the number of effective samples increased by 886, compared to that of the complete data. Third, the data model compensated with GIS showed higher values in rho-bar square, and the hitting ratio.