The Time Distance Application allows the Collision Reconstructionist to complete a full time distance analysis in a vehicle-to-vehicle collision.
The application is designed to perform time distance calculations in a typical path intrusion scenario where the driver of through or bullet vehicle is attempting to avoid the collision by applying the vehicle brakes.
All that is necessary to perform the base calculations is the impact speeds of both involved vehicles, the pre impact braking distance and drag factor of the through vehicle along with the driver’s perception reaction time. After these items are entered the application will establish how far the through vehicle was from the collision, in terms of both time and distance, at the driver’s point of perception.
The application then takes the time distance analysis a step further and conducts a series of “What If?” calculations. The what if calculations establish if the collision would have occurred had the through vehicle been traveling at the posted speed limit. In the event the through vehicle would not have been able to stop before reaching the point of impact the application will take into account the movement of both vehicles, to determine if there would have been sufficient additional time for the Intruding vehicle to clear the path of the Thru vehicle. If the Intruding vehicle is capable of clearing the point of impact, the distance the vehicle clears the impact by is determined.
If the collision involves a red signal, the application will perform a complete red light analysis to determine where the Through vehicle would have been from the Stop Bar, in terms of both time and distance, when the traffic signal turned both yellow and red.
The calculations are dynamic in nature, allowing the user to change any of the entered variables and to see the results of those changes instantly.
The results along with all of the related math is displayed in a line-by-line or step-by-step fashion that may be viewed from within the application or emailed, allowing results and math to be copied and pasted into any word processing program.
- iPod Touch