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A Guide for Reducing Work Zone Collisions (2005) / Chapter Skim
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Pages 7-12

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From page 7...
... The Federal Highway Administration has stated that as congestion builds within and approaching work zones, crash rates increase (FHWA, 1998)
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From page 8...
... , who report that about 20 percent of the National Highway System is under construction each year during the peak summer road work season, with the total number of highway work zones estimated to be more than 6,400. This study collected project information posted on agency websites, and these websites would most likely list only large projects rather than a complete list of all projects.
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From page 9...
... , approximately 22 percent of the work zones that they found listed on agency websites were designated for night work, and two-thirds of all resurfacing and paving activity took place at night. • More than twice as many work zone fatal crashes occurred on weekdays as on weekends.
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From page 10...
... SECTION III -- TYPE OF PROBLEM BEING ADDRESSED III-4 EXHIBIT III-4 Comparison of Factors: Percentages of Work Zone and Non–Work Zone Fatal Crashes Data from FARS (2003) Factor All Fatal Crashes Work Zone Fatal Crashes Time of day Night 49 47 Day 50 52 Unknown 1 1 Day of week Weekend 34 31 Weekday 66 69 Season Winter 22 16 Spring 24 26 Summer 27 31 Autumn 27 27 Roadway function Rural, Interstate 7 13 Rural, other 51 39 Urban, Interstate 6 15 Urban, other 35 32 Unknown 1 1 Speed limit 1–50 mph 44 38 55–75 mph 52 58 Unknown 4 4 Number of vehicles involved One 57 53 Two 36 35 More than two 7 12 Manner of two-vehicle collision Rear-end 13 35 Head-on 26 21 Angle 32 22 Side-swipe, opposite direction 21 15 Side-swipe, same direction 6 7 Other or unknown 2 0
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From page 11...
... . Building Safer Highway Work Zones -- Measures to Prevent Worker Injuries from Vehicles.
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From page 12...
... 2003. "A Snapshot of Summer 2001 Work Zone Activity Based on Information Reported on State Road Closure and Construction Websites." EDL 13793.
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Key Terms

  • work zone
  • work zones
  • night work
  • road closure
  • nchrp report

  • road work
  • speed limit
  • zone safety
  • national work
  • highway administration

  • federal highway
  • signal timing
  • key reference
  • key references
  • zone crashes

  • traffic congestion


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