TRENDS IN RESEARCH DURING THE FISCAL YEAR: TRAFFIC AND OPERATIONS

THIS SUMMARY OF RESEARCH TRENDS IS PART OF THE 1951 ANNUAL REPORT OF THE HIGHWAY RESEARCH BOARD TO THE AMERICAN ASSOCIATION OF STATE HIGHWAY OFFICIALS. IN THE AREA OF BASIC TRAFFIC RESEARCH, PROJECTS ARE UNDER WAY TO DETERMINE THE RELATION OF ROUGHNESS AND SKIDDING TESTS TO DESIGN TYPE AND MIX, TO STUDY PERIPHERAL VISION OF DRIVERS, TO DEVELOP EQUIPMENT AND TECHNIQUES FOR MEASURING ROAD REFLECTANCE, TO DETERMINE LATERAL PLACEMENT AS RELATED TO SHOULDERS AND PAVEMENT WIDTH, TO STUDY VEHICLE CHARACTERISTICS; SPEED ON GRADES, BRAKING ABILITY, OPERATING COSTS, TO DETERMINE TRAFFIC STREAM CHARACTERISTICS, AND TO DETERMINE INCIDENTAL EFFECTS; EFFECT OF ROADSIDE FEATURES ON ACCIDENTS, RELATION BETWEEN ACCIDENTS AND SPEED, SPEED AND ACCIDENTS IN TERMS OF GEOMETRY AND VOLUMES, RELATION OF DRIVER AGE TO ACCIDENTS AND VIOLATIONS: IN THE AREA OF TRAFIC PLANNING RESEARCH, STUDIES ARE UNDERWAY TO APPRAISE SUFFICIENCY RATINGS, CAPACITY AND NEED, RAILROAD GRADE CROSSING HAZARD RATINGS, TO APPRAISE HIGHWAY TRANSMISSION AND SPEED CHARACTERISTICS, TO EVALUATE REGULATIONS AND CONTROL DEVICES, TO DETERMINE THE VALIDITY OF POST CARD ORIGIN AND DESTINATION STUDIES, TO DETERMINE THE EFFECT OF MEDIAL DIVIDERS ON LATERAL POSITIONING OF VEHICLES.

  • Supplemental Notes:
    • Annual RepoRT, PP 21-22
  • Corporate Authors:

    Highway Research Board

    2101 Constitution Avenue, NW
    Washington, DC    20418
  • Authors:
    • Bledsoe, B A
  • Publication Date: 1951-6

Subject/Index Terms

  • Subject Areas: Highways; Research;

Filing Info

  • Accession Number: 00243093
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: May 29 1972 12:00AM