Ralph Cunningham, Inc.

ACTAR-Accredited Motor Vehicle Accident Reconstruction

1804 Thornhill Pass, SE, Conyers, GA 30013

770.918.0973 Cellular: 770.378.5568 Fax: 770.918.8076

Truck Telephone Number: 678.206.6042 (No messaging service at this number)

Email: ralphc@mindspring.com

If you are here at this page just to view the current feature, dated May 9, 2008, you may click here to go directly to it: current feature. If you want to see the list of vehicles supported under CDR Version 3.1, with software and hardware soon to be released, you may click on this link:: Version 3.1 list.

Reconstruction

• Crush damage and momentum based collision analysis.
• Crash data retrieval/event data recorder downloads from cars/light trucks, using Bosch CDR Toolkit.
• Simulation, prediction, animation, and reconstruction with SMAC.
• Cars, light trucks, heavy trucks, tractor trailers, utility trailers, motorcycles, and other over-the-road vehicles.
• Pedestrian and bicyclist collision evaluation.
• Occupant location/ejection evaluations.
• Night visibility/conspicuity/human factors evaluations.
• Night still photography/Hi8/digital HD videography.

Component Failure Evaluations

• Steering systems and components.
• Brakes: hydraulic, air, and air-over-hydraulic.
• Anti-lock braking systems.
• Brake fluid contamination.
• Car, motorcycle, and light truck tires.
• Wheel separations.
• Bearing failures.
• Engine failures.
• Small trailers: hitches, couplers, axles, and electric and surge brakes.
• Seat belts: webbing, anchorage, and use.
• Supplemental impact restraints (airbags).
• Lamp filament examination (on or off at impact).

I have converted all of my newsletters to Adobe Portable Document Format. You may access them from my Web site by going to my newsletter page.

If you are here to learn more about Crash Data Retrieval/Event Data Recorders, please click here.

On May 5, 2005, I received my Vericom VC3000DAQ. This is a vehicle-performance monitoring, analyzing, and recording computer. Among other tasks, this device will allow me to accurately measure rates of deceleration for braking at a collision site and to evaluate cornering/turning/lane-change performance of vehicles, if and when needed. If you are interested in learning more about this device, please click on this link.

Since 1972, I have been involved in providing forensic consulting services. I have been involved in over 2000 motor vehicle accident investigations and reconstructions and have testified in hundreds of cases in State and Federal Courts. (My trial and deposition list is available on an as-needed basis.) I have taken numerous accident-reconstruction-specific courses (please see the biographical page). Observations are usually documented with a full-frame, digital, single-lens-reflex camera and saved in both RAW and high-resolution JPEG formats; Hi-8 videography or High-Definition digital videography is readily available if requested.

Please visit the following pages if you are interested:

For the biographical sketch, please click Ralph's work biography.

For the fee structure, please click time and expense charges.

For my current feature article, please click current feature.

My list of trials and depositions is available in Adobe Portable Document Format; the date on the form is the valid date for the listing. To view that list, please click on Trial and Depositon List.

Thank you for visiting my Web site.