EVALUATION OF THREE INSTALLATIONS OF "BLOCKED-OUT" MEDIAN GUARDRAIL WITH GLARE SCREEN

EVALUATIONS ARE PRESENTED OF THE INSTALLATION OF THREE SECTIONS (3.3 MILES TOTAL) OF "BLOCKED-OUT" MEDIAN GUARDRAIL (TYPE CD) WITH A TOP-MOUNTED ALUMINUM MESH ERECTED ON I-75 IN MONROE AND WAYNE COUNTIES. THIS INSTALLATION COST $207,325 TO ERECT AND RESULTED IN THE FOLLOWING STATISTIC- ALLY "SIGNIFICANT" REDUCTIONS DURING THE 4 YEAR STUDY PERIOD: (1) PERSONS INJURED IN MEDIAN-INVOLVED ACCIDENTS (45 "BEFORE" AND 23 "AFTER"), (2) TOTAL PERSONS INJURED (108 "BEFORE" AND 84 "AFTER", (3) PERSONS KILLED IN MEDIAN-INVOLVED ACCIDENTS (11 "BEFORE" AND 0 "AFTER"), AND, (4) TOTAL PERSONS KILLED (15 "BEFORE" AND 4 "AFTER"). THE REDUCTION OF ALL INJURIES AND ALL FATALITIES (BASED ON REDUCTION #2 AND #4 ABOVE), DURING THE TWO YEAR "AFTER" PERIOD, RESULTED IN A BENEFIT TO THE MOTORING PUBLIC OF $90,500. /AUTHOR/

• Supplemental Notes:
  • Rept No Tsd-SS-123-69, 17 PP, 2 TAB, 8 FIG
• Corporate Authors:

  Michigan Department of State Highways

  State Highways Building, PO Drawer K
  Lansing, MI  United States  48904
• Authors:
  • Hoffman, M R
• Publication Date: 1969-10

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Evaluation; Fatalities; Guardrails; Injuries; Median barriers; Structural design; Traffic crashes
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 00225839
• Record Type: Publication
• Source Agency: Nat Safety Council Safety Res Info Serv
• Files: TRIS, STATEDOT
• Created Date: Jan 26 1971 12:00AM