00201719

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http://onlinepubs.trb.org...s/hrr/1969/285/285-010.pdf

EXTRACTIONS ARE PRESENTED FROM AN UNPUBLISHED TECHNICAL REPORT ON RESEARCH CONDUCTED IN ONE TASK UNDER THE BUREAU OF PUBLIC ROADS NATIONAL RESEARCH PROJECT, 'UNDERLYING FACTORS IN URBAN TRANSPORTATION ANALYSIS.' THE TASK IS CONCERNED WITH IMPROVING THE TECHNIQUES OF ESTIMATING FUTURE POTENTIAL DEMAND FOR HIGHWAYS. THE MOST IMPORTANT SINGLE INDICATOR OF DEMAND FOR HIGHWAY TRANSPORTATION IS AUTOMOBILE AVAILABILITY (MEASURED BY THE RATIO OF AUTOMOBILES AVAILABLE TO EMPLOYED RESIDENTS). MULTIPLE REGRESSION ANALYSES WERE MADE OF THE RELATIONSHIPS BETWEEN THE 1950 AND 1960 RATIOS OF PERCENT SHARES OF AUTOMOBILES AVAILABLE AND NINE RELATED POPULATION, EMPLOYMENT, AND INCOME VARIABLES FOR 198 URBANIZED AREAS. TESTS WERE MADE OF THE ACCURACY OF THE EQUATIONS IN PREDICTING 1960 AUTOMOBILES AVAILABLE USING 1950 AS THE BASE YEAR. THE EQUATION FOR URBANIZED AREAS IN THE TYPE A CATEGORY, ALTHOUGH NOT AS ACCURATE AS MOST OF THE OTHER EQUATIONS, PREDICTED VALUES THAT ARE WITHIN PLUS OR MINUS 15 PERCENT OF THE ACTUAL VALUES IN APPROXIMATELY TWO-THIRDS OF THE CASES. PROJECTIONS OF THE NUMBER OF AUTOMOBILES AVAILABLE IN 1975 AND 1990 WERE MADE FOR THE 28 URBANIZED AREAS CLASSIFIED AS TYPE A. /AUTHOR/

Paper sponsored by Committee on Socio-Economic Aspects of Highways. 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.

01410225

pp 105-116

1969

Highway Research Record

Digital/other

Figures (2) ; References (3) ; Tables (4)

Automobiles; Employment; Highway transportation; Income; Mathematical analysis; Population; Regression analysis; Supply; Transportation planning; Urban transportation

Availability

Data and Information Technology; Economics; Highways; Society

TRIS, TRB

Nov 24 1994 12:00AM

• A RESOURCE ALLOCATION MODEL FOR TRANSPORTATION PLANNING
• A TRANSPORTATION AND PRICE-SENSITIVE INTERREGIONAL INPUT-OUTPUT MODEL
• DEVELOPMENT OF A TRANSIT COST ALLOCATION FORMULA
• ECONOMIC ASPECTS OF URBAN PASSENGER TRANSPORTATION
• ENGINEERING-ECONOMIC SYSTEMS ANALYSIS FOR TRANSPORT PLANNING IN DAHOMEY, WEST AFRICA
• Information Needs of Interstate Highway Motorists in Iowa
• THE ECONOMIC BENEFITS ACCRUING FROM THE SCENIC ENHANCEMENT OF HIGHWAYS
• THE ECONOMICS OF THE DIESEL FUEL TAX DIFFERENTIAL
• THE INFLUENCE OF THE HIGHWAY NETWORK STRUCTURE ON THE ECONOMIC DEVELOPMENT OF WEST VIRGINIA
• THE USE OF LAND DEVELOPMENT SIMULATION MODELS IN TRANSPORTATION PLANNING