What Did We Have Experienced and Learned from the Household Travel Dairy Survey in Seoul, Korea?

Abstract

The Household Travel Survey in City of Seoul has been conducted every five years since 1996. The third survey was performed in the year 2006, which collected travel and demographic information of households residing in City of Seoul, Korea. The project consists of Weekday Survey, Weekend Survey, and Supplementary Telephone Survey for Correcting the Under-Reporting problems. Sample size of weekday survey should be more than 3% of households (about 102,000 households) in City of Seoul and final sample size after eliminating erroneous samples should be at least 2% of households. For preliminary and main examination of returned questionnaires, many investigators were hired for about a month. Using survey data, we analyzed weekday and weekend travel characteristics in terms of travel purposes and modes. In this paper, we would like to introduce our survey, and share experience of survey process.