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DEVELOPING A TRAFFIC MODEL WITH A SMALL SAMPLE

Robert G. Davidson

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Abstract

A 0.12 PERCENT SAMPLE (1000 OUT OF 850,000 FAMILIES) IN THE BOSTON AREA RESPONDED TO ORIGIN-DESTINATION (O-D) INTERVIEWS. THE RESULTS WERE USED TO CALCULATE THE 1959 AND 1980 TOTAL, WORK AND NON-WORK TRAVEL FREQUENCY IN EACH OF 84 TRAFFIC ZONES. THIS SMALL SAMPLE PROVED TO BE ADEQUATE, AND EVEN THOUGH STRAINED, GAVE RESULTS THAT HAVE A LEVEL OF ACCURACY CONSISTENT WITH MANY OTHER INPUTS OF A METROPOLITAN TRANSPORTATION STUDY.

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What this paper is about

A 0.12 PERCENT SAMPLE (1000 OUT OF 850,000 FAMILIES) IN THE BOSTON AREA RESPONDED TO ORIGIN-DESTINATION (O-D) INTERVIEWS. THE RESULTS WERE USED TO CALCULATE THE 1959 AND 1980 TOTAL, WORK AND NON-WORK TRAVEL FREQUENCY IN EACH OF 84 TRAFFIC ZONES. THIS SMALL SAMPLE PROVED TO BE ADEQUATE, AND EVEN THOUGH STRAINED, GAVE RESULTS THAT HAVE A LEVEL OF ACCURACY CONSISTENT WITH MANY OTHER INPUTS OF A METROPOLITAN TRANSPORTATION STUDY.

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Available abstract

A 0.12 PERCENT SAMPLE (1000 OUT OF 850,000 FAMILIES) IN THE BOSTON AREA RESPONDED TO ORIGIN-DESTINATION (O-D) INTERVIEWS. THE RESULTS WERE USED TO CALCULATE THE 1959 AND 1980 TOTAL, WORK AND NON-WORK TRAVEL FREQUENCY IN EACH OF 84 TRAFFIC ZONES. THIS SMALL SAMPLE PROVED TO BE ADEQUATE, AND EVEN THOUGH STRAINED, GAVE RESULTS THAT HAVE A LEVEL OF ACCURACY CONSISTENT WITH MANY OTHER INPUTS OF A METROPOLITAN TRANSPORTATION STUDY.

Key concepts: Metropolitan area, Sample (material), Transport engineering, Work (physics), Poison control, Sample size determination, Engineering, Geography

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