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• Examining ΔV from an EDR file with Excel - 2hr Zoom with Wade Bartlett

  • When
    06 Jun 2025
  •  
    12:00 - 14:00
  • Location
    Worldwide via Zoom
  • Spaces left
    1462

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  Examining ΔV from an EDR file with Excel
  

  This will be an extension of the "Excel zoomie" in February, but instead of a skid-to-stop test with digital integration, we'll spend more time discussing DV and PDOF and making informative and easy to read charts.
  

  -Finding the data in the .csv file

  -Calculate total DV

  -Plotting ΔVx -  ΔVy -  ΔVtotal
  

  -Clean up the chart to suit with desired gridlines, border, scales, titles, tic marks, colors, markers, lines, labels, words

  -What does ΔV tell us about the travel speed?

  -Calculate PDOF over time and plot it

  -Other charting tasks as time permits

  -Handouts will include an Excel Shortcut cheat sheet, and a few pages regarding PDOF and the addition of acceleration vectors.

  DATE: Friday, 06 June 2025
  TIME: 12pm (noon) - 2 pm EST (GMT-5)
  COST: Free for NAPARS members;  $6 for non-members
  ACTAR: This event has been submitted to ACTAR for CEU consideration. Accredited attendees should be prepared to sign in with i-Attend app on a phone during the presentation, assuming they are approved.
  

  All attendees will be able to request an attendance certificate during the show.

  The show will be recorded and put in the Reference Library along with various supporting material.

  Our Speaker: 

  Wade Bartlett has degrees in Mechanical Engineering (1989 and 1994), holds ACTAR #789, and is a licensed professional engineer in NH. He has run a private engineering and accident reconstruction consulting business for 30 years, and has been a certified part-time police officer in NH since 2003, currently employed by Farmington PD and Strafford County Sheriff's Office. He is also the administrator for NAPARS.

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• Basic Human Factors in Crash Reconstruction

  • Start
    04 Aug 2025
  •  
    08:00
  • End
    08 Aug 2025
  •  
    19:00
  • Location
    Oklahoma City Police Department Building #3 3738 SW 15th St. Oklahoma City, Ok. 73108
  • Spaces left
    18

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  BASIC HUMAN FACTORS IN CRASH RECONSTRUCTION

  Instructors: Driver Research Institute

  August 4, 2025 - August 8, 2025

  Location: Oklahoma City Police Department Training Facility Building #3

  3738 SW 15th St

  Oklahoma City, Oklahoma 73108

  This course is designed to introduce crash investigators, technicians, and crash reconstructionist to various driver response research in emergency situations as well as introduce them to research dealing with non-immediate responses also. Te attendee should have a thorough understanding of Time and Distance formulas on how to calculate speed in moving situations as well as to/from a stop situation, and constant speed situations. The goal is to introduce attendees to the foundations of driver response research, specifically, response times and nighttime recognition distances. The class is designed to meter out the tremendous amount of information between stories and examples that reinforce learning. 

  
  

  The average response times of common response time scenarios are discussed and practiced. Also, the results from nighttime recognition distance studies are discussed. 

  
  

  RESPONSE (formerly IDRR) software - attendees will receive a 30 day trial.

  • Driver acceleration at various locations
  • Pedestrian walking speeds
  • Drivers' speed choices in various environments
  • Vision
  • Flashing lights (in addition to discussion in intro class)
  • Crash risk due to speed choices
  • Lane change behaviors and glances
  • Glance behaviors at intersections
  • Applying lighting standards
  • Influence of retroreflective sheeting on commercial vehicles and signs
  • Using published research as the basis of your opinion in court (A2B techniques)
  • Steering and lateral acceleration behaviors

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• Motorcycle Collision Reconstruction

  • Start
    15 Sep 2025
  •  
    08:00
  • End
    18 Sep 2025
  •  
    17:00
  • Location
    Glendale Police Station 6835 N 57 Drive Glendale, AZ 85301
  • Spaces left
    15

  Registration is closed

  
  

  NAPARS and SATAI are Proud to Offer

  MOTORCYCLE COLLISION RECONSTRUCTION

  INSTRUCTOR:  ANDREW THOMAS

  Andrew will be instructing the class, using Lou’s material

  The Motorcycle Collision Reconstruction course equips the analyst with a firm understanding of motorcycle dynamics and current reconstruction techniques through deep review of literature, sample evidence, and exercises. The following topics are covered:

  1. Introduction to motorcycle crash causation, motorcycle anatomy, and specification research

  2. Review of kinematics including units, conversions, and derivations of basic equations

  3. Fundamentals of motorcycle dynamics (geometry, stability, steering, weight transfer, suspension, etc.)

  4. Motorcycle inspection

  5. Rider perception-response time

  6. Braking systems and rider performance

  7. Introduction to Excel for collision reconstruction

  8. Dynamics of swerving and rider performance

  9. Acceleration behavior, calculations, and gearing analysis

  10. Sliding friction for downed motorcycles

  11. Analysis of wheelbase reduction for determination of impact speed

  12. Angular momentum

  13. Rider and pillion vault analysis

  14. Event data recorders and dataloggers

  15. Simulation analyses for impact speed determination

  16. Monte Carlo analysis to determine confidence in speed ranges

  
  

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• 2025 Joint Conference, hosted by NYSTARS

  • Start
    22 Oct 2025
  • End
    24 Oct 2025
  • Location
    Lake George, NY

  The New York State Traffic Accident Reconstruction Specialists will be hosting the 2025 Joint Conference
  

  https://nystars.org/joint-conference
  

  Venue: Fort William Henry Resort, Lake George NY
  

  NYSTARS, NAPARS, NJAARS, MdATAI, and NATARI rotate responsibility for the Annual Joint Conference each year.
  

  
  

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• Heavy Vehicle Forensic Mechanical Inspection for Collision Investigators

  • Start
    17 Nov 2025
  •  
    08:00
  • End
    21 Nov 2025
  •  
    17:00
  • Location
    Asheville-Buncombe Technical Community College 24 Canoe Lane Asheville, NC 28804
  • Spaces left
    10

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  Heavy Vehicle Forensic Mechanical Inspection for Collision Investigators

  Instructor: Bill Foche

    Obtain the skills required to properly investigate, document, and analyze traffic crashes involving commercial motor vehicles. Collisions involving heavy vehicles often encompass unique documentation and analysis components. In this five-day course, crash investigation students learn to inspect collision-damaged heavy vehicles and gain additional skills for examining commercial vehicle crashes. This is a hands-on, basic investigation course for proper examination, documentation, and evidence preservation with no prerequisites. Curriculum includes lecture and hands-on training with collision-damaged trucks. Forensic work is conducted on the braking systems, suspension systems, wheel systems, and steering systems. Our expert instructors provide foundational information about each component, and students learn to use that knowledge to mechanically examine and test a damaged heavy vehicle. Participants complete this course able to restore a damaged air-braking system on a heavy-duty commercial vehicle to pre-collision condition in order to collect data for calculations used in evaluating the braking efficiency of a heavy-duty commercial vehicle. Students also will be able to identify parts and pieces of steering and suspension systems and explain how the components may have factored into a crash.

  
  

  
  

  Location:  Asheville-Buncombe Technical Community College

         24 Canoe Lane

                      Asheville, NC 28804

  
  

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• 2026 Symposium on EDR Research and Training

  • Start
    14 Apr 2026
  •  
    08:00
  • End
    16 Apr 2026
  •  
    17:00
  • Location
    Embassy Suites Chattanooga, Tennessee Hamilton Place
  • Spaces left
    241

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  2026 Symposium on EDR Research and Testing

  April 14th - 16th, 2026

  Location:  Embassy Suites
  2321 Lifestyle Road
  Chattanooga, Tennessee 30742

  423.602.5100
  

  NAPARS is proud to continue sponsoring top-quality training around the country and the globe, by bringing the third Symposium on EDR Research and Training to Chattanooga TN. Our host facility is the Embassy Suites Chattanooga Hamilton Place, located approximately 5-7 minutes from the Chattanooga (CHA) Airport.

  ROOM RATES:

       Suite with one King bed: $149/night

       Suite with two Queen beds: $169/night

  This link takes you directly to the booking page at the hotel:

  Embassy Suites Chattanooga Hamilton Place

  I encourage everyone to make their reservations early as we have a limited number of rooms, and based on the last two years, they will go fast. The Embassy Suites will offer a cooked-to-order breakfast each morning and lunch will be served all three days. A Ruth's Chris Steak House is on site, and there are dozens of local restaurants within walking distance of the hotel.
  

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