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Lyon

Lyon - reports by county (2004-2008)


General county statistics General county statistics | Driver Driver | Environment Environment | Injured person Injured person | Roadway Roadway | Vehicle Vehicle | Miscellany Miscellaneous
 
General County Statistics Crash map Count data
Impairment (Drug/Alcohol)County
General county crash statistics include information about all rural crashes in the county regardless of topic (i.e., they are nontopical). Some splits by rural and urban are provided. Maps and reports are subsequent to this selection.
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    2004-2008PDF
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    Driver Crash map Count data
    Impairment (Drug/Alcohol)Impairment (drug/alcohol)
    Impairment - (drug/alcohol) related crashes were selected by identifying rural crashes involving any driver with a positive drug test, a nonzero blood alcohol content (BAC) result, a driver condition indicating officer judgement that the driver was under the influence of alcohol, drugs or medications, or a test refusal (whether drug or alcohol). Maps and reports are subsequent to this selection.
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    Inattentive/DistractedInattentive/Distracted
    Inattentive/Distracted crashes were selected by identifying rural crashes involving a driver contributing circumstance indicating inattentive or distracted behavior (i.e., inattentive/distracted by passenger, use of phone or other device, fallen object, of fatigued/asleep). Maps and reports are subsequent to this selection.
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    Older driversOlder drivers
    Older driver-related crashes were selected by identifying rural crashes involving a driver at or older than age 65. Selection of these crashes only indicates involvement and not causal factors. Maps and reports are subsequent to this selection.
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    Older driversSpeed-related
    Speed-related crashes were selected by identifying rural crashes involving a driver contributing circumstance indicating speed-related behavior (i.e., exceeded authorized speed; driving too fast for conditions; lost control; followed too close; or operating vehicle in an erratic, reckless, careless, negligent or aggressive manner). Maps and reports are subsequent to this selection.
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    Older driversYounger drivers
    Younger driver-related crashes were selected by identifying rural crashes involving a driver between the ages of 14 and 20 (inclusive). Selection of these crashes only indicates involvement and not causal factors on the part of the younger driver. Maps and reports are subsequent to this selection.
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    Environment Crash map Count data
    Impairment (Drug/Alcohol)Animal-vehicle crashes
    Animal-vehicle crashes were selected by identifying rural crashes and then by querying animal from major cause, where major cause is a derived field in which animal is determined as the major cause if a collision with an animal is indicated in any of the Sequence of Events (up to four per vehicle) entries. Maps and reports are subsequent to this selection.
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    Impairment (Drug/Alcohol)Icy, snowy or slushy surface condition-related
    Icy, Snowy, or Slushy Surface Condition-related crashes were selected by identifying rural crashes involving an icy, snowy or slushy surface condition. Maps and reports are subsequent to this selection.
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    Injured Person Crash map Count data
    Impairment (Drug/Alcohol)Unbelted passenger-related crashes
    Unbelted passenger-related crashes were selected by identifying rural crashes and further limiting crashes to those involving an unbelted occupant of a vehicle and injuries to those persons who were unbelted. Maps and reports are subsequent to this selection.
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    Roadway Crash map Count data
    Impairment (Drug/Alcohol)Intersection-related crashes
    Intersection-related crashes were selected by identifying rural crashes and querying for the intersection options under the type of roadway junction/feature portion of the crash report form. Maps and reports are subsequent to this selection.
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    Vehicle Crash map Count data
    Impairment (Drug/Alcohol)Heavy truck
    Heavy truck-related crashes were selected by identifying rural crashes and limiting those crashes to those involving heavy trucks (truck/trailer, truck tractor (bobtail), tractor/semi-trailer, tractor/doubles, tractor/triples). Selection of these crashes only indicates involvement and not causal factors on the part of the trucker. Maps and reports are subsequent to this selection.
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    Impairment (Drug/Alcohol)Motorcycle
    Motorcycle-related crashes were selected by identifying rural crashes and limiting those crashes to those involving motorcycles. Selection of these crashes only indicates involvement and not causal factors on the part of the motorcyclist. Maps and reports are subsequent to this selection.
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    Miscellany Crash map Count data
    Impairment (Drug/Alcohol)Multi-vehicle crossed centerline/crossed median (MVCC/CM)
    Multi vehicle crossed centerline/crossed median (MVCC/CM) crashes were selected by identifying rural crashes and then by limiting to multivehicle crashes and then further querying manner of crash/collision impact equal to head-on; sideswipe, same direction; or sideswipe, opposite direction or any sequence of event (up to four per vehicle) equal to crossed centerline/median or any contributing circumstance, driver (up to two per driver) equal to traveling wrong way or on wrong side of road, crossed centerline, or lost control and then limiting the occurrences of these to nonintersection sites. Maps and reports are subsequent to this selection.
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    Impairment (Drug/Alcohol)Multiple fatality
    Multiple fatality crashes were selected by identifying rural crashes and by querying for more than one fatality per crash. Maps and reports are subsequent to this selection.
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    Single-Vehicle Run-Off Road (SVROR)Single-vehicle run-off road (SVROR)
    Single-vehicle run-off-road (SVROR) crashes were selected by identifying rural crashes and then by limiting to single-vehicle crashes and then further querying for any sequence of event (up to four per vehicle) equal to ran off road, right; ran off road, straight; or ran of road, left. Maps and reports are subsequent to this selection.
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    Safety Improvement Candidate Location (SICL) listSafety improvement candidate location (SICL) list
    The safety improvement candidate location (SICL) list was developed through a statewide process that considered all intersections.
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    Key Emphasis Areas (KEA)Key emphasis areas (KEA)
    The key emphasis areas (KEA) chart is a county-based subset of the statewide KEA chart.
  • Crash-based PDF
  • Injury-basedPDF
    • Archival DataArchival data
    Past versions of the county profiles.
  • 2001-2005 HTML file
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    Additional crash data

    IPRC Injury Reports - Lyon County (not limited to just traffic-related injuries but includes injuries of any type) produced by the Injury Prevention Research Center (IPRC) - The University of Iowa thru collaboration with the Iowa Department of Public Health (IDPH)
    Office of Traffic and Safety
    Ph: 515 239-1557 | Fax: 515 239-1891

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