IDRR offers the most up to date and comprehensive sample of peer reviewed drivers’ responses ever compiled. Our sample performs as a baseline that can then be used to compare to your subject driver.
Through the software all data points are easy to obtain and will be on-point to your investigation. The source of the data is transparent and well cited.
We give you the confidence in knowing that we have the most recent data for PRT to immediate hazards. The specificity of our data covers human factors timing for leg movement, steering, braking and the influence of crash type on response times and how they range for normal drivers for each crash type.
Nightime hazards range from and could be influenced by street lighting, reflective materials, lighting, pattern recognition, clothing color, background illumination, headlight type and pedestrian movement. Just a few of the after dark data hazard data points we collect.
Driver speed choice and anticipation to non-immediate hazards such as curves, roadside obstacles, flashing lights, emergency vehicles all influence how a driver changes their speed or responses to each factor. How does crash risk increase when they do not modify their speed or change their response?
What is the likelihood of a driver being able to stop, slow down, steer or brake when trying to avoid an obstacle? What percentage of drivers succeed? Our data tells you the facts against each specific situation.
Approved and accepted for use in over 13 countries, our scientific approach and impartial collection of data is the antidote to bias. Our solution strives to include all relevant, scientific, and peer-reviewed data.
San Diego, CA: Lawyers & Judges Publishing
Regarding computer modelings of drivers’ response times, Dr. Paul Olson wrote: “The investigator who wishes to estimate response time for some situation not covered by one or more studies is forced to take his knowledge of the literature and extrapolate in an effort to estimate what it would be in the situation under consideration. Beyond question, having a general purpose model would be a very real advantage. Such an effort has been undertaken by Muttart (2003).”p.248
“Muttart’s work is important and represents a significant contribution in trying to deal with the real-world problems of driver PRT. The equations have been packaged and are being marketed [in IDRR], presumably to the persons involved in the investigation of traffic accidents. The work represents a significant and valuable addition to our understanding of the driver PRT.” p. 100-103.
“Muttart’s work represents a significant breakthrough in trying to deal with real-world problems of driver PRT” p. 404
I have been a user of the IDRR software for several years. As a Human Factors expert I have access to the same resources as the DRI team, but found having all of the information at my fingertips to be highly valuable. The new Response program offers the user so much more. Clearly the DRI team has invested a lot of time and expertise in their development of the Response program, which now answers most any driver human factors questions. In my opinion (to a reasonable degree of scientific certainty), where IDRR was a highly valuable tool, Response is an invaluable tool to any accident reconstruction expert. I will be a lifelong user!
John Lloyd, Ph.D., CPE
Response is an absolute must for anyone in the crash reconstruction consulting business. Response saves me many hours of research per case doing research and I can be confident that I have not missed an important research paper. Response also offers advice to ensure that the user is applying the correct analysis to the crash. Response will also perform time-distance calculations which is useful for checking the user’s hand calculations. I highly recommend Response for all crash reconstruction consultants.
Andy Rich, BSME, ACTAR, ASE
Rich Consulting, LLC
Fairlawn, Ohio
Just logged in for the first time and went through the initial videos and I have to say, my first 20-minute off-the-cuff reaction to Response as a long-time IDRR user is: “WOW”! Seems really robust and user-friendly and I can’t wait to dive in during my next need for PRT data. So nice to see you guys send out the fruit of what is clearly a well-thought-out (and labored over!) summation of all of Jeff’s work over the years. Congratulations on the release and best wishes for its continued success and growth.
Eric Deyerl
Headlamp export to CSV! Excellent feature. It makes it so much simpler to then import to Virtual Crash 5, create a mesh and then attach to the moving vehicle. In one simulation I can visualize the differences between high and low beam entry for pedestrians. Great stuff. I look forward to digging through the new interface to see what else I can find. It is the most indispensable software in my toolkit.
Tom Morris
St. Louis Traffic Accident Reconstruction
IDRR is one of the best and most used tools in my recon kit, helping me answer a fundamental question of every case: was the collision avoidable? It gets better and more useful with every update and I look forward to seeing what’s next.
Louis Peck
Lightpoint Scientific
Over the past ½ century, there have been many advancements that have really changed the practice and education of Crash Investigation and Reconstruction. The use of a total station, crash simulation software, portable scanning, the use of a portable drone, and of course vehicle technology with EDR data. Amongst these advancements, in my humble opinion, is the work done by Dr. Muttart.
His efforts in conducting studies, gathering on-point scientific data and the creation of IDRR has greatly improved the science of Crash Reconstruction. Dr. Muttart’s work has and will continue to improve classroom teaching and reconstructionist abilities for objective scientific analysis.
It was my pleasure to recommend him years ago to join the staff at Northwestern University CPS and I highly recommend that all in this industry take Dr. Muttart’s classes a few times over the years and utilize IDRR when appropriate.
Mike DiTallo
Dynamic Safety LLC
A lot of my cases involve recognition of path intrusion or closing speed and IDRR gives me an incredible foundation… when I testify about these issues. I can’t thank Jeff, Swaroop, Lynn, and Sunny enough for the work they continue to put into ensuring we’re all out there relying on good science.
Beau LeBlanc
CI Dynamics
Before IDRR, human factors research was out of reach. IDRR has become an invaluable tool in my toolbox of collision reconstruction software programs. A complete collision analysis and reconstruction simply cannot be completed without using this most valuable tool.
Paul Gruen
Top Gun Collision Reconstruction
I purchased IDRR about 5 years ago at an IPTM Symposium and am extremely happy for doing so, The investment has been worth its weight in gold. I am able to validate the PRT calculations against studies to calculate the mean and standard deviations.
Shawn Gyorke
Arlington Heights PD & Crash Data Services
Prior to IDRR, I had to search through numerous references to provide a range of PRT pertinent to the case of interest. IDRR dramatically simplified that process for me. IDRR also provides data for the human factors specialist, beyond PRT.
Dr. John Lloyd, PHD Human Factors
I have found the program (I.DRR) to be very useful on a large number of cases. I appreciate that the formulas and references are explicitly stated or displayed, so that I.DRR results are easy to integrate into an expert report.
William Messerschmidt
Messerschmidt Safety Consultants
Driver response research at your fingertips
and tailored to your case.
Driver response research at your fingertips and tailored to your case.
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