THE CONCEPT OF TOLERABILITY IN ROAD NEEDS SURVEYS

A SURVEY OF HIGHWAY NEEDS WAS ASSESSED UNDER FOUR CLASSES OF LAND DEVELOPMENT: (1) CAPITAL CITY URBAN, (2) MAJOR PROVINCIAL CITY, URBAN, (3) OTHER PROVINCIAL CITIES AND TOWNS, URBAN, AND (4) RURAL. THE NEEDS SURVEYS ARE ALSO ASSESSED UNDER LEGAL ROAD CLASSIFICATIONS AND FUNCTIONAL CLASSIFICATIONS. THE USE OF A NEEDS STUDY BASED ON A TOLERABILITY CONCEPT IS COMPLEMENTARY TO A MAJOR TRANSPORTATION STUDY WHERE THE LATTER IS AVAILABLE. IT PROVIDES ADDITIONAL INFORMATION ON HOW THE EXISTING ROAD SYSTEM OPERATES AND OF WHERE MAJOR IMPROVEMENTS IN EFFICIENCY MAY BE OBTAINED THROUGH A SHORT TERM CONSTRUCTION AND TRAFFIC MANAGEMENT PROGRAM. CRITERIA WERE DEVELOPED RELATING THE DEGREE OF SATURATION AND OVERALL TRAVEL TIME THROUGHOUT THE SYSTEM, AS THEY AFFECT THE OVERALL PERFORMANCE OF THE ROAD SYSTEM. THE TOLERABILITY STANDARD THAT WAS CHOSEN WAS THE POINT AT WHICH TRAFFIC OPERATIONS START TO BECOME UNSTABLE BY BRINGING ABOUT A GREATER INCREASE IN DELAYS AND VARIABILITY OF DELAYS. THE NEEDS STUDY PROVIDES INFORMATION TO ASSIST IN PROGRAMMING THE PLAN IN RELATION TO A BUDGETARY PROPOSAL AND IN PROVIDING A BASIS FOR REVIEW.

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Filing Info

  • Accession Number: 00201817
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Aug 26 1970 12:00AM