ROAD-RAIL PROTECTION-AUDIBLE WARNING EFFECTIVENESS

AUDIBLE WARNING IS BECOMING PROGRESSIVELY LESS EFFECTIVE WITH MODERN HIGH SPEED ROAD TRAFFIC AND NOISY VEHICLES INTERFERING WITH RECEPTION. SUBJECTIVE EXAMINATION OF WARNING SOUNDS CAN BE MISLEADING AS THE EAR DOES NOT DIRECTLY COMPARE SOUND PRESSURE LEVELS. SOUND REDUCES IN INTENSITY IN ACCORDANCE WITH THE INVERSE SQUARE LAW. TO DOUBLE THE RANGE OF HEARING, A FOURFOLD INCREASE IN PRESSURE LEVEL IS REQUIRED. SUGGESTIONS ARE MADE ON CHANGES IN METHODS OF ROAD VEHICLE OPERATION WHICH WOULD TAKE INTO CONSIDERATION HIGH WINDS AND OTHER FACTORS AND IMPROVE OVERALL SAFETY ON CROSSING APPROACHES. SUGGESTIONS ARE ALSO MADE ON IMPROVEMENTS TO ROADSIDE AUDIBLE WARNINGS AND STANDARDIZATION OF AUDIBLE SIGNALS THAT IT WOULD BE PRACTICAL TO CARRY OUT WITHOUT DEGRADATION OF THE TOTAL ENVIRONMENT. /AUTHOR/

• Record URL:
  http://arrbknowledge.com
• Supplemental Notes:
  • PROC PAPER 826
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Cox, J J
• Conference:
  • Australian Road Research Board Conference Proc
• Publication Date: 1972

Media Info

• Pagination: p. 448-66
• Serial:
  • Volume: 6
  • Issue Number: 2

Subject/Index Terms

• TRT Terms: Awareness; Hearings; Safety; Sound; Warning systems
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 00226798
• Record Type: Publication
• Files: TRIS, ATRI
• Created Date: Jan 31 1974 12:00AM