"Providing Insightful Analysis Tailored To Your Case" 
SOFTWARE
What Crash Safety Solutions Has to Offer
Our Formulas & References are Easy to Integrate into an Expert Report
Interactive Driver Response Research - Everything you need but speed!
I.DRR Features:
  •   Response to lead vehicles
  •   Response to traffic signals
  •   Motorcyclist response time
  •   Response to known localized sounds
  •   Drivers' maneuvers
  •   Gaps in traffic
  •   Avoidance
  •   Steering amplitude
  •   Steering / lateral Gs
  •   Crash reconstruction tools
  •   VIN check
  •   Proper display size in court
  •   Exposure values for photos
  •   Gear ratios
  •   Quadratic calculator
  •   Reference information, definitions, formulas & Charts
  •   Response to potential hazards 
  •   Time available in the road
  •   Pedestrian moving speeds
  •   Acceleration rate & time
  •   Time available at night
  •   Sun position
  •   Headlight analysis
  •   Nighttime recognition
  •   Inverse square law
  •   Effects of weather / tint
  •   Effects of vehicle spray
  •   Time & distance analysis
  •   Perception-response time
  •   Response to path intrusions
  •   Response to cut offs
  •   Provides annotated notes from published, peer-reviewed      scientific studies pertaining to driver response
Path Intrusion: Adjustment-to-Baseline 
Path Intrusion Adjustment-to-Baseline is one of the most popular uses of I.DRR.  Path Intrusion A-2-B utilizes 22 studies for this analysis. 
What is an Adjustment to Baseline?
Adjustment to baseline (A-2-B) is a method for estimating driver response times. A2B is based upon the theory that response times are additive. Additivity suggests response times increase or decrease by a constant amount (a linear rate) as the response complexity increases and decreases.
So how is A-2-B applied to Path Intrusions?
In this program, research studies are the baseline. When comparing studies, particularly the methodology and reported results, response times changed when the methodology changed. Further, an understanding of the amplitude of the response time change was seen. Applying this knowledge to a forensic setting, if the methodology of the study differs from the scenario being examined, adjustments can be made based upon how response times have changed in past research.
Object Entering Headlight Beam Analysis
This module in I.DRR is designed for several different analysis types: To offer the user results from measuring the headlight beam of vehicles with similar headlight bulbs. 

This information will allow the user to determine the time from when the object entered the headlight beam up until the point the driver began to skid or steer (the perception-response time from when the pedestrian, bike or object entered the headlight beam). Performing time and distance analysis if the user is investigating a pedestrian or bicycle crash headlight beam analysis only.
 
Object Entering Headlight Beam Analysis offers the user several different headlight beam choices including but not limited to the 9000 series, H series, high beam headlights and halogen headlights. This analysis worksheet also shows you the path of the intruding object, pedestrian or bicyclist.
I.DRR Comparison 
I.DRR FAQ
What do I need to be able to run I.DRR?
I.DRR requires Microsoft Excel 2007 (with Service Pack 2) or newer in order to function properly. It will not run in Microsoft Excel 2007 viewer or any other version of Excel. To view the User Guides, you have to have Adobe Acrobat Reader 5.0 or newer.
Is my purchase of I.DRR a one-time purchase, or does it require an annual fee?
It is both. There is an initial fee to acquire the program for a one-year license. We also require a yearly licensing fee of $200 (for an individual license), which covers all program updates throughout the year. 
How are updates handled?
We release one major update a year where we add new sections to the program and update current sections with the latest available research. If we make small fixes throughout the year, we make the newest version of the program available to all users and notify them of the changes that have been made. Updates are included with the annual licensing fee (see above).
I want to put I.DRR on my laptop and my home desktop. Can I do that or do I have to purchase two copies of the program?
As a single user licensee, you can use the same program file on multiple computers, as long as you are the sole user of your license. Contact us if you need help putting the program on more than one computer.
Can I purchase I.DRR for my entire department or consulting firm?
Yes, please contact Lynn at info@crashsafetysolutions.com for further details regarding multiple licenses..
Improving User Certainty by Addressing Scientific Uncertainty
What is V*STAR?
  • A speed probability program that calculates the probable speed at impact of either two vehicles OR a vehicle and pedestrian or bicycle involved in a crash
  • Provides a solution to the conservation of linear momentum problem with pre-impact avoidance taken into consideration
  • Uses a Monte Carlo analysis to determine results
  • Allows the user to choose the distribution of results and the variance of the distribution, so users can be confident in the robustness of the calculated values
  • Provides users the ability to choose a range for each value, allowing for certainty in the possible margin of error
By entering the case parameters, (initial speeds, preimpact maneuver, any skidding distances, etc.) and a range, V*Star will perform 4000 randomized distribution calculations for each variable (within your range parameters), thus generating either a normal or uniform distribution to determine the probable speed of your vehicle/pedestrian at impact. 
As always, V*Star allows the user to view the actual calculations performed.
 
V*STAR FAQ
What do I need to be able to run V*Star?
V*Star requires Microsoft Excel 2007 (with Service Pack 2) or newer in order to function properly. It will not run in Microsoft Excel 2007 viewer or any other version of Excel. To view the User Guides you have to have Adobe Acrobat Reader 5.0 or newer
Is my purchase of V*STAR a one-time purchase, or does it require an annual fee?
It is both. There is an initial fee to acquire the program for a one-year license. We also require a yearly licensing fee of $100 (for an individual license), which covers all program updates throughout the year. 
How are updates handled?
We release one major update a year, where we add new sections to the program and update current sections with the latest available research. If we make small fixes throughout the year, we make the newest version of the program available to all users and notify them of the changes that have been made. 
I want to put V*STAR on my laptop and my home desktop. Can I do that or do I have to purchase two copies of the program?
As a single user licensee you can use the same program file on multiple computers as long as you are the sole user of the license. Contact us if you need help putting the program on more than one computer. 
Can I purchase V*STAR for my entire department or consulting firm?
Yes, please contact Lynn at info@crashsafetysolutions.com for further details regarding multiple licenses.
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We Are Here to Answer Any of your Questions!
ABOUT US
Crash Safety Solutions, LLC is a company working to provide solutions and educational tools to crash reconstructionists investigating different aspects involving crashes. CSS holds various classes utilizing lectures, discussions and in-class demonstrations designed to introduce reconstructionists to scientific studies and analysis to answer the key questions involving aspects of driver behavior: reaction times (and delays), perception, visibility and impairment, among others. Topics focus on obtaining a better understanding of what needs to be accomplished to assess the human role in the crash sequence.  
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MAILING ADDRESS
Crash Safety Solutions, LLC
201 W High St. Unit B8,
East Hampton. CT 06424

Contact: Lynn Carangelo
Email: info@crashsafetysolutions.com
Phone: (860)861-1418
Fax: (860)467-6755
Crash Safety Solutions LLC, 2017. Contact: info@crashsafetysolutions.com