IMPROVEMENT PRIORITY RATINGS FOR LOCAL RURAL ROADS IN INDIANA

INCREASED PUBLIC INTEREST IN HIGHWAY IMPROVEMENT PROGRAMS INTENSIFIED THE NEED FOR THE CLASSIFICATION, EVALUATION, AND PRIORITY RANKING OF HIGHWAY SECTIONS. THE SUCCESSFUL DEVELOPMENT AND APPLICATION OF SUCH PROCEDURES WOULD RESULT IN THE FOLLOWING BENEFITS: THE ASSEMBLY OF RELEVANT FACTS IN AN ORDERLY MANNER; THE ELIMINATION OR MINIMIZING OF PERSONAL JUDGMENTS IN THE ASSIGNMENT OF PRIORITY OF IMPROVEMENT; THE PROVISION OF AN OBJECTIVE BASIS FOR MEETING COMMUNITY AND POLITICAL PRESSURE; THE PROVISION OF AN AVERAGE MEASURE OF THE ADEQUACY OF THE EXISTING HIGHWAY PLANT AND AN INDICATION OF THE PROGRESS IN HIGHWAY DEVELOPMENT; AND THE PROTECTION OF THE PUBLIC'S INVESTMENT IN THE HIGHWAY SYSTEM BY PROVIDING A METHOD FOR BUDGETING FUNDS ACCORDING TO THE RELATIVE ORDER OF NEED. THE JOINT HIGHWAY RESEARCH PROJECT OF PURDUE UNIVERSITY DEVELOPED PROCEDURES FOR THE CLASSIFICATION AND EVALUATION OF RURAL COUNTY HIGHWAY SECTIONS IN INDIANA. THESE PROCEDURES WERE FIELD TESTED AND DESIGNED TO SATISFY THE BASIC CRITERIA OF SIMPLICITY, PRACTICALITY, FLEXIBILITY, AND ECONOMY. THE CLASSIFICATION OF THE RURAL COUNTY HIGHWAY SECTIONS INTO THREE SYSTEMS (COUNTY PRIMARY, COUNTY SECONDARY, AND LOCAL SERVICE) IS BASED UPON KNOWLEDGE OF TRAFFIC VOLUMES AND CHARACTERISTICS, ABUTTING LAND USE, AND COMMUNITY INTEREST UNDER PRESENT AND FUTURE CONDITIONS. A METHOD OF HIGHWAY EVALUATION IS TO PROPOSED TO ESTABLISH AN IMPARTIAL PRIORITY VALUE PORTRAYING THE RELATIVE NEEDS OF HIGHWAY SECTIONS. PRIORITY IS BASED ON THE FORMULA: PRIORITY RATING = 2.5 (SERVICE RATING) EXPONENT 1.25 LOG (100/ROAD RATING) WHERE THE PRIORITY RATING HAS A PRACTICAL RANGE FROM 1 TO 100 WITH A HIGH VALUE INDICATING A HIGH PRIORITY. THE SERVICE RATING RANGES FROM 1 TO A MAXIMUM VALUE OF 50 AND IS COMPOSED OF ELEMENTS INDICATING THE NEED AND USE FOR A HIGHWAY SECTION. THE ROAD RATING RANGES FROM 1 TO A MAZIMUM VALUE OF 100 AND IS COMPOSED OF VARIOUS ELEMENTS INDICATEING THE PHYSICAL CONDITION OF THE HIGHWAY SECTION. THIS PRIORITY RATING FORMULA IS ONE OF THE FIRST RATIONAL PROCEDURES BASED ON THE INTER-RELATIONSHIP BETWEEN THE NEED FOR THE HIGHWAY AND THE PHYSICAL CONDITION OF THAT HIGHWAY. THIS RELATIONSHIP WAS RECOMMENDED FOR USE IN INDIANA COUNTIES AND HAS THE FOLLOWING DESIRABLE PROPERTIES: (1) ROADS PROVIDING A MINIMUM SERVICE SHOULD HAVE A PRIORITY RATING WHICH APPROACHES A MINIMUM VALUE REGARDLESS OF CONDITION, (2) ROADS RANKED NEAR THE MAXIMUM AS TO CONDITION (I.E., HIGH ROAD RATING) SHOULD HAVE A PRIORITY RATING WHICH ALSO APPROACHES A MINIMUM VALUE REGARDLESS OF THE SERVICE PROVIDED BY THAT ROAD, (3) FOR A CONSTANT SERVICE RATING, THE RATE OF CHANGE OF THE PRIORITY RATING SHOULD DECREASE AS THE ROAD RATING INCREASES, (4) FOR A CONSTANT ROAD RATING, THE RATE OF CHANGE OF THE PRIORITY RATING SHOULD INCREASE AS THE SERVICE RATING INCREASES. A DISCUSSION OF SOME HIGHWAY RATING PROCEDURES NOW BEING USED BY VARIOUS STATES AND COUNTIES IS INCLUDED AND THE PROCEDURES ARE COMPARED WITH THE PROPOSED PRIORITY RATING METHOD.

  • Supplemental Notes:
    • Vol 35, pp 38-62, 12 FIG, 3 TAB, 30 REF
  • Authors:
    • Baerwald, J E
  • Publication Date: 1956

Media Info

  • Monograph Title: Proceedings of the Thirty-Fifth Annual Meeting of the Highway Research Board, Washington, D.C., January 17-20, 1956
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00200471
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 1971 12:00AM