HVE-CSI TM Human-Vehicle-Environment – Crash Site Investigator Crash Reconstruction Software for Law Enforcement

HVE-CSI is a version of the HVE (Human-Vehicle-Environment) highway safety research software designed specifically for law enforcement officers charged with reconstructing crashes. HVE-CSI helps officers determine vehicle speeds at loss-of-control and impact, identify the causes of the crash and evaluate if any traffic safety laws have been violated. HVE-CSI provides fundamental reconstruction and simulation capabilities by including two well known reconstruction software tools, EDCRASH and EDSMAC. These tools have been extensively validated, and results have been presented and accepted in courts worldwide for over 20 years.

This collage of images is from a reconstruction in HVE-CSI using EDCRASH and EDSMAC to identify the impact speeds and delta-V of an intersection crash between an SUV and a pickup. The vehicles were created and edited in the Vehicle Editor, an image of the crash site evidence including skidmarks and rest positions was imported in the Environment Editor, and then EDCRASH and EDSMAC runs were performed in the Event Editor. The impact and final rest positions of the vehicles, along with drag at each wheel, increases in tire friction due to tire blow-out and damage to the axles of the target vehicle were included in the analysis. Comparing the simulated skidmarks to actual evidence helped identify the speeds of the pickup and SUV were approximately 44 - 47 mph and 16 - 19 mph respectively at the time of the crash. This confirmed witness statements that the pickup failed to obey the stop sign at the controlled intersection.

HVE-CSI • Crash Reconstruction Software for Law EnforcementFollowing inspections of the vehicles and crash site, HVE-CSI is used to reconstruct the crash. Users create vehicles and import a scaled crash site image from an aerial photo, crash site drawing or other source. EDCRASH and EDSMAC are then used to identify the severity and possible causes of the crash, such as excessive speed, loss-of-control or failure to obey traffic control devices. HVE-CSI creates extensive reports and simulation movies, allowing the reconstructionist to quickly complete an analysis, document their work and move to the next case. HVE-CSI has the following components:

Vehicle Editor – Create and quickly modify vehicles to match the actual vehicles for your case. The Vehicle Wizard provides an excellent template for quickly assigning vehicle dimensions, weights and weight distribution. You can click directly on icons displayed on the vehicle to change the color, crush stiffness values and tire friction and cornering properties

Environment Editor – Enter the dimensions of your crash site aerial photo, image of your crash site drawing, Google Earth map or other graphic image, and HVE-CSI automatically builds a scaled surface with your image. You can then work directly over your actual crash site evidence and instantly compare your calculated results. It's that easy!

Event Editor – Set up EDCRASH and EDSMAC runs by entering positions, velocities, driver controls and crush measurements. Efficiency tools, such as the Distance Tool, allow you to quickly determine distances between vehicles, skidmarks, tire-tracks and other important reference points. The Event Controller allows you to change inputs and reset the event to quickly analyze alternative scenarios.

Playback Editor – Output reports documenting your work are available in the Playback Editor in several formats, including text reports, variable output spreadsheets and visual damage profiles. Simulation movies can be produced directly from the Playback Window and easily incorporated into your presentations. You’ll also find a list of references supporting the validation and application of EDCRASH and EDSMAC to help support and defend your results.

HVE-CSI’s ease-of-use and extremely affordable price make it an attractive option for the entire crash reconstruction team. For more information about product capabilities, training or to request a demonstration of HVE-CSI, contact EDC Sales at 503.644.4500 or sales@edccorp.com. HVE, HVE-CSI, EDCRASH and EDSMAC are trademarks of Engineering Dynamics Corporation. All rights reserved. © 2011 Engineering Dynamics Corporation. All specifications are subject to change without notice. HVE-CSI • 0411

Engineering Dynamics Corporation • 8625 SW Cascade Ave, Suite 200 • Beaverton, OR 97008 Phone: (503) 644-4500 • Fax: (503) 526-0905 • E-mail: info@edccorp.com • www.edccorp.com