Nonresponse in Household Travel Surveys

摘要

The purpose of this report is to improve the quality of survey data collected byMetropolitan Planning Organizations (MPOs) and state DOTs, and to promote efficient utilization of data collection resources. The three-pronged approach describes measuring and reporting nonresponse, reducing nonresponse, and the use of statistical methods for reducing the impact of nonresponse. A standard approach to reporting response rates is recommended and can help assess the quality of the survey data. It also allows users to evaluate different techniques for implementing surveys, thus building a coherent body of knowledge on methods for household travel surveys. Characteristics of typical nonrespondents are discussed and procedures to improve response rates are recommended. Even though all travel surveys are likely to have nonrespondents, some specific methods to adjust survey results to better represent the population are recommended. This report should be of use to designers, analysts, and sponsors of household travel surveys who find themselves involved with the collection, reporting, or interpretation of travel survey data.