TRAFFIC GROWTH PATTERNS ON RURAL HIGHWAYS

PAST TRAFFIC TRENDS ARE REVIEWED, INTERPRETED AND USED AS A GUIDE IN FORECASTING TRAFFIC. THE RESULTS OF A STUDY OF FACTORS AFFECTING THE VARIATION OF TRAFFIC INCREASE RATES ON RURAL HIGHWAYS ARE REPORTED. FOR THE RURAL HIGHWAYS LOCATED BEYOND THE DIRECT URBAN INFLUENCE, THE TYPE OF TRAFFIC SERVICE WAS FOUND TO BE THE FACTOR INFLUENCING THE VARIATION IN INCREASE RATES. THOSE ROADS CARRYING THE GREATEST PERCENTAGE OF INTERURBAN AND INTERREGIONAL TRAFFIC HAD THE GREATEST INCREASES. INCREASE TRENDS WERE SUMMARIZED IN FOUR CATEGORIES IN DESCENDING ORDER OF TRAFFIC INCREASE RATES. AT THE TOP WITH THE GREATEST INCREASE WERE THE INTERSTATE HIGHWAYS CARRYING THE LARGEST PERCENTAGE OF INTERURBAN AND INTERREGIONAL TRAFFIC. AT THE BOTTOM WITH THE LEAST INCREASE WERE THE ROADS CARRYING MAINLY RURAL TO RURAL, AND RURAL TO URBAN TRAFFIC. BETWEEN THESE TWO EXTREMES WERE TWO INCREASE CATEGORIES CARRYING INTERMEDIATE VOLUMES OF INTERURBAN AND INTERREGIONAL TRAFFIC. THE RATES OF INCREASE PROJECTED 20 YEARS RANGED FROM 210 PERCENT FOR THE INTERSTATE SYSTEM DOWN TO 50 PERCENT FOR THE ROADS CARRYING LOCAL RURAL TRAFFIC. INCREASE RATES ON SECONDARY ROADS COINCIDED WITH THE DEGREE OF IMPROVEMENT IN THE SURFACE. WHEN THE IMPROVEMENT WAS FROM PLAIN GRAVEL TO A BITUMINOUS SURFACE THE INCREASE IN 10 YEARS AVERAGED 200 PERCENT. AN IMPROVEMENT THAT BETTERED, BUT DID NOT CHANGE THE SURFACE TYPE BROUGHT AN AVERAGE OF 80 PERCENT INCREASE IN 10 YEARS. ROADS ON WHICH THE SURFACE TYPE AND CONDITION WERE MERELY MAINTAINED HAD AN AVERAGE INCREASE OF ONLY 50 PERCENT IN 10 YEARS. /AUTHOR/

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  • English

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  • Accession Number: 00227796
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 2004 2:36AM