STATISTICAL ANALYSIS OF A ROAD IMPROVEMENT IMPACT PROBLEM

AN ILLUSTRARION IS MADE OF THE APPLICATION DESIGN TO A HIGHWAY IMPACT STUDY. EACH OBSERVATION IN THE DATA SET CONSISTS OF A PROPERTY VALUE MATCHED WITH MEASURES OF THE ROAD SERVICE OF THE SUBJECT PROPERTY AND OTHER QUALITIES OF THE PROPERTY BEARING ON ITS VALUE. THE MEASUREMENTS OF ROAD SERVICE WERE IN MILES OF ROAD FOR A CROSS CLASSIFICATION OF ROAD SURFACE TYPE BY ROAD USE TYPE. MULTIPLE REGRESSION METHODS USING INVERTED MATRICES WERE USED TO ESTIMATE THE ASSOCIATION OF PROPERTY VALUE WITH ROAD SERVICE. ONCE THIS ASSOCIATION WAS KNOWN, THE ESTIMATE COULD BE MADE OF THE IMPACT OF ROAD IMPROVEMENTS. TO FIND THE IMPACT OF ROAD IMPROVEMENT, THE DEPRECIATION OF VALUE WAS REMOVED BY PRESENT SERVICE ROADS. THE IMPACT WAS TAKEN TO BE THE DIFFERENCE BETWEEN TWO RATES OF DEPRECIATION. A REGRESSION MODEL WAS SET UP TO DETERMINE WHETHER PROPENSITY TO TRAVEL FOR ANY PURPOSE VARIED FROM ROAD SURFACE TYPE TO ROAD SURFACE TYPE. IT WAS FOUND THAT THE DERIVED MEASURES OF PROPERTY VALUE DEPRECIATION APPLY ONLY IF STABLE PATTERNS OF ROAD UTILIZATION CAN BE ASSUMED.

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  • Supplemental Notes:
    • pp 84-86 Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Authors:
    • Garrison, William L
  • Publication Date: 1957

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  • Accession Number: 00201860
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 14 1970 12:00AM