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- W626381161 abstract "The quality of transportation survey data is crucial to realistic calibration of transportation models. However, whether errors are made by survey participants or by key punch operators, by the time planners are ready to generate trip rates from the raw data, the quality of that data can be seriously compromised. Problems with Dade, Palm Beach, and Treasure Coast data bases are described in Editing Travel Survey Data -- Common Problems and Corrective Actions by M. DeAnna and R. Ewing. They documented the extent of the problem and provided some guidelines of what types of errors were prevalent. Our task here was to implement their recommendations. We refined their methodology and wrote a series of thirty computer programs to detect and correct errors in a transportation survey database. After running the entire battery of programs on the survey responses from Broward County, we validated the correctness of our changes. Resorting to the original questionnaire response forms and to telephone calls to respondents when necessary, we determined that our methodology and programs were quite accurate in cleaning initially inconsistent survey data. Both portions of the work cast light on the sources of different types of errors. The first half of this paper is a description of our data cleaning programs. The second half covers the subsequent validation exercise." @default.
- W626381161 created "2016-06-24" @default.
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- W626381161 date "1997-01-01" @default.
- W626381161 modified "2023-09-27" @default.
- W626381161 title "CLEANING HOUSEHOLD TRAVEL SURVEY DATA: FINAL REPORT" @default.
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