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How do the 1990 and 2000 CTPP data sets differ?

April 26, 2017CTPP Data differ

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How do the 1990 and 2000 CTPP data sets differ?

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• Coding of Travel Time 1990 – Travel time was limited to 2 digits, with a maximum of 99 minutes allowed 2000 – Travel time expanded to a 3 digit field, with a maximum of 200 minutes allowed • Data Rounding For more information on this topic, please refer to the following article taken from the April, 2004 Status Report article: “Data Rounding in CTPP 2000”