Unlock The Power Of Human Factors With Response

Your instant, unlimited access to the most current and comprehensive driver behavior research ever compiled.

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If you’re looking to take the lead in human factors analysis for your investigations Response is the game-changing software you’ve been waiting for.

With the most up-to-date and comprehensive collection of peer-reviewed drivers’ response research ever compiled, Response gives you a rock-solid baseline to confidently compare and evaluate the behavior of any subject driver.

It’s reliable, cutting-edge, and built to give you an edge.

Who is Response for?

Crash Reconstructionists

Uncover Critical Insights

With the most comprehensive database of driver responses, Response provides the tools you need to analyze human factors, reconstruct events accurately, and uncover the truth faster.

Police Officers

Make Smarter, Faster Decisions

Response equips officers with instant access to peer-reviewed driver behavior data, streamlining investigations and helping you build strong, defensible reports with confidence.

Auto Engineers

Design Safer Vehicles

With the advent of autonomous vehicles, leverage real-world driver behavior data. Response helps engineers understand how drivers react in critical situations, providing actionable insights to enhance vehicle safety and performance.

How It Works

All The Research You Need, Right At Your Fingertips

STEP - 01

Sign Up

STEP - 02

Instantly Access

Instantly access the exact information you need for the case you’re working on

STEP - 03

Win

Save hundreds of hours of wasted time and get the success you deserve, FAST

How It Works

A Crash Reconstructionist's New Best Friend

Response stands out as a go-to, comprehensive tool for in-depth human factors analysis. It takes into account:

Driver Response Time (PRT)

We compile the most recent data for PRT to immediate hazard distraction. Our data covers specific human factors for timing including:

Nighttime recognition

We collect after-dark hazard data points. Nighttime hazard include or can be influenced by:

Hazard Anticipation

Driver speed choice and anticipation to non-immediate hazards such as:

Vehicle Avoidance

These issues all influence how a driver changes their speed or responds to each factor. Response highlights the ways in which risk increases based on an array of potential driver responses

Testimonials

What Our Users Say About Us.

John Lloyd

Ph.D., CPE – Human Factors Expert

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 almost any driver human factors question. 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!

Mike DiTallo

Dynamic Safety LLC

Over the past ½ century, there have been many advancements that have really changed the practice and education of Crash Investigation and Reconstruction. 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 have 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 and utilize IDRR when appropriate.

Paul Gruen

Top Gun Collision Reconstruction

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.”

Andy Rich

BSME, ACTAR, ASE – Rich Consulting, LLC

Response is an absolute must for anyone in the crash reconstruction consulting business. Response saves me many hours of research per case, 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.

Lou Peck

Lightpoint Scientific

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

Eric Deyerl

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.

William Messerschmidt

Messerschmidt Safety Consultants

I have found the program (IDRR) to be very useful on a large number of cases. I appreciate that the formulas and references are explicitly stated or displayed so that IDRR results are easy to integrate into an expert report

Dr. John Lloyd

Ph.D. – Human Factors Specialist

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.

Shawn Gyorke

Arlington Heights PD & Crash Data Services

I purchased IDRR about five 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

Beau LeBlanc

CI Dynamics

“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.”

Tom Morris

St. Louis Traffic Accident Reconstruction

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.

Choose The Plan That Suits You

Response stands out as a go-to, comprehensive tool for in-depth human factors analysis. It takes into account:

Monthly Single

$95.00

$119

/Month

30 Days Free Trial

Yearly Single

$780

$1,150

/ Year

In a matter of seconds, you could have access to the most up-to-date and comprehensive sample of peer-reviewed driver responses ever compiled

Information Questions

Frequently Asked Questions

General Information

What is Response software?

Response is a leading human factors analysis software developed by the Driver Research
Institute. It provides a comprehensive database of peer-reviewed research on driver response
times, hazard anticipation, vehicle avoidance, and more. The software serves as a reliable
baseline for comparing and evaluating driver behavior in investigations. Additionally, Response
has been accepted as a scientific treatise in multiple court proceedings, reinforcing its credibility
in legal and forensic contexts.

Who can benefit from using Response?

Response is designed for police officers, crash reconstructionists, and auto engineers. It helps
in accident investigations, crash reconstructions, and vehicle safety design by offering extensive
research-based insights into driver behavior.

What makes Response unique?

Response stands out due to its transparency, well-cited data sources, and continuous updates. Unlike other software that requires periodic manual updates, Response integrates new research findings as they are processed, ensuring users always have access to the latest data. Furthermore, it has been cited in more than a dozen peer-reviewed publications, including books, and has approximately 1,000 licensed users from over 15 countries, including universities, manufacturers, and health departments.

What types of driver response data does Response include?

Response provides insights into various aspects of driver behavior, including:
• Driver Response Time (PRT): The influence of crash types, leg movement, steering, and braking.
• Nighttime Recognition: Factors affecting driver visibility at night, such as headlight maps, street lighting, and reflective materials.
• Hazard Anticipation: Driver reaction to non-immediate hazards like curves, roadside obstacles, and emergency vehicles.
• Vehicle Avoidance: Likelihood of successful driver maneuvers to prevent crashes, such as braking, steering, and speed adjustments.

How does Response help with human factors analysis?

Response provides a structured approach to understanding how drivers perceive, process, and react to roadway hazards. It integrates research on cognitive load, distraction, reaction times, and environmental factors, enabling users to analyze the influence of human factors in various driving scenarios. Additionally, users can input case-specific factors, and Response will tailor research findings to highlight the most relevant data while guiding users on applying it within an accepted methodology.

Is Response easy to use?

Yes, Response is designed with a user-friendly interface that allows investigators and analysts to access and interpret data efficiently. The software includes built-in tutorials, a search-friendly dashboard, and responsive customer support to ensure ease of use.

Features & Capabilities

What types of driver response data does Response include?

How does Response help with human factors analysis?

Is Response easy to use?

Live Updates & Support

How often is Response updated?

Response is continuously updated with the latest research findings as they become available. Users can track updates through the “Updates” section on the software dashboard.

What kind of support is available for Response users?

Response provides multiple support options, including a dedicated support team, video training systems, a comprehensive FAQ section, and direct contact options for troubleshooting and inquiries.

Industry Applications

How does Response help police officers in accident investigations?

Response provides police officers with accurate data on driver response times and hazard anticipation, helping them determine causation factors in accidents and make informed traffic safety decisions.

How does Response assist crash reconstructionists?

The software allows crash reconstructionists to compare a subject driver’s behavior to a database of normal drivers, aiding in accurate accident reconstructions and expert testimony.

How can auto engineers use Response?

Engineers can analyze human factors affecting driver response times and use this data to design vehicles with improved safety features and enhanced collision mitigation systems.

Scientific Credibility & Legal Acceptance

What is the scientific and legal credibility of Response?

IDRR™ and RESPONSE® is a database of peer-reviewed results, making it an accepted treatise. It has been cited by authors in more than a dozen peer-reviewed publications, including several books. The software has approximately 1,000 licensed users from over 15 countries, including universities, manufacturers, and health departments.te

Has Response been used in court proceedings?

Yes, IDRR™ and RESPONSE® have been referenced in multiple court proceedings. The right-side section of the software lists cases where the database has been cited as a thorough and objective tool for evaluating driver responses. The software’s methodology has been repeatedly acknowledged for its reliability and objectivity.

Getting Started

How can I get access to Response software?

Visit our website to learn more about subscription options, request a demo, and unlock the full potential of Response for your investigations and research.

Is there training available for new users?

Yes, we offer video training and documentation to help new users navigate the software and maximize its capabilities.

For more information, visit our website or contact our support team today!