R E C - T E C
ACCIDENT . . . . . RECONSTRUCTION . . . . . . SOFTWARE

"when performance counts"

New Stuff added to the REC-TEC Programs

Modifications to REC-TEC and DRIVE3 (08282007)

• Path Intrusion Sections of Drive3

  • Path Intrusion (Front) extensively re-written including chart of adjustments - See Studies

  • Path Intrusion (Side) extensively re-written including chart of adjustments - See Studies

  • New Help Files (F1) for both sections

  • 9 additional studies (17 Total) included in computations
    

• Digital Momentum

  • Improved and expanded to work with latest version of CrashZone on file transfer options

Modifications to REC-TEC (05032007)

• Digital Momentum (New Features)

  • Automatic screen centering of Centroids of Damage using Center button after aligning Centroids

Modifications to REC-TEC (04282007)

• Digital Momentum (New Features)

  • One-Click alignment of Centroids of Damage when using Crush Vehicles

  • Save and Open .dlm file capability enabling saving and opening the entire DLM file

  • PDOF vectors added to the Momentum Computations

  • PDOF numerical display shown on screen

  • Scale damage, PDOF, Centroid of Damage, Moment Arm, Impulse and Direction of Rotation Vectors from CRUSH5 vehicles.

• CrushV

  • Improved the Rotation Vector Algorithm.

Modifications to REC-TEC (03302007)

• Motion Analysis

  • 24 phase limit expanded to 99

  • Reworked section to use baseline Friction and Rolling Resistance (single entry for all phases) with individual phase adjustment to baseline for any necessary changes to individual phases

  • Section still compatible with older files

• CrushV

  • Improved the merge algorithm that places the Centroids of Damage over each other in the Graphics screen preventing superimposition errors.

Modifications to REC-TEC (03152007)

• 360 Digital Momentum (New)

  • Tweaked it up to work better with scale (.crs) and AutoStats vehicles including importing the weights

• CrushV

  • Improved the Vehicle1.ASC and Vehicle2.ASC output files for import into CrashZone8 as .DXF files

Modifications to REC-TEC (03092007)

• 360 Digital Momentum (New)

  • Drag drop Momentum computations including DeltaV

  • Imports 2D or 3D Motion Analysis files for post impact data on either (or both) vehicle(s)

  • Imports scale (CrushV) vehicles for use in display

  • Transfers data including Motion Analysis files to 360 Linear Momentum for further analysis including Finite Difference Analysis

• 360 Linear Momentum

  • Now Accepts output from 360 Digital Momentum including Motion Analysis files for post-impact data and graphics.

• Motion Analysis

  • Graphics display refined

  • Imports scale (CrushV) vehicles for use in display

Modifications to REC-TEC (02272007)

• 360 Linear Momentum

  • Corrected error inadvertently introduced into the Lateral and Longitudinal components of DeltaV in Version 02012007 caused while integrating data from 360 Digital Momentum.

Modifications to REC-TEC (02012007)

• CRUSH 

  • Program Outputs a Text File that many CAD programs can convert into a DXF file for the Scale CRUSH Vehicles including Damage and Vectors.

• 360 Linear Momentum

  • Imports CadZone Linear Momentum (All) files

• Time Distance Multiple Surfaces

  • Imports CadZone Skid files.  

• Motion Analysis

  • Imports Forensic3D files for Linear, Offset and Z-Axis data

• F1, F2, F3 and F4 keys are all active in any Section (see Manual on Main Screen)

  • F1 - Manual for Active Section

  • F2 - Finite Difference Analysis Manual

  • F3 - Animation details for participating Sections

  • F4 - Animation examples and upcoming Step-by Step Tutorials.

• F5 key now active for Platinum and Plus Option users

Modifications to REC-TEC (01112007)

• Printing 

  • New Printer Option interface

  • Printer returns to Pre-Session Default if changed in program  

Modifications to REC-TEC (01072007)

• Report Forms 

  • New routine lets user print to PDF (Adobe) files directly without using a word processor

  • New (less confusing???) selection process for Report Forms 

Modifications to REC-TEC (12122006)

• Motion Analysis 

  • Full 3-axis (X, Y, and Z) output for Hi-Resolution Animation

• Crush5

  • Forced instantaneous recalculation after Balance of Forces regardless of configuration

• Statistical Ranging - Monte Carlo

  • Forced Variable array dimensioning if no Alpha value and defaulted Alpha setting if not set eliminating posibility of generating a fatal error in the section

• Time Distance Multiple Events

  • Corrected paging error in Animation Output Files

• Time Distance Multiple Surfaces

  • Corrected paging error in Animation Output Files

Modifications to REC-TEC (11262006)

• Yaw - Critical Speed 

  • Moved the full screen graphics back to the front (Oops).

• Linear Momentum

  • Modifications in Graphics, Vector Sum and Velocity Vectors. 

    • Addition of PDOF and DeltaV vectors to Graphics section and removal of non-informational lines

    • Plane of Impact now has better scaling algorithm

    • Plane of Impact allowed outside of 1st quadrant so that it remains perpendicular to the PDOF.

    • Only primary vectors change size so the minor lines retain their style 

Modifications to REC-TEC (11172006)

• Collision Avoidance - Turn 

  • Expanded to use Initial Speed and solve for Distances or X-Axis Distance of Turn to solve for Speed.

  • Graphics added to Formulae Comparison for visual representation of the Distances. 

  • Addition of Finite Difference Analysis 

    • Solving for Speed

    • Solving for Distances of both Turn and Lane Change type maneuvers.

      • Solutions for each of six different formula

• Enhanced Graphics

  • Triangles

  • Linear Momentum

  • Load Check A

  • Load Check B

  • Deceleration Single Surface

Modifications to REC-TEC (10302006)

• S-CAM and S-CAM II 

  • Clicking on the Force Chart button causes the program to interrogate itself and produce a document showing the values for the Pushrod Force that are actually used by the program.  Checking the Chamber Type block in S-CAM II allows user to display only the selected chamber.  In the past the chart was simply a document that was displayed in the word processor. 

  • Prepared section for future expansion and enhancements. 

• Vault Slide Integration

  • Animation has been moved to a separate button from the Set KeyFrame button.

  • Vault Speed Input (lower left) will go blank if it is not being used to determine a friction value required for the maneuver.

• Time Distance Multiple Vehicles 

  • Switching from 360 to Parallel display for Animation has been further automated to assist the user.

•  Time Distance Deceleration

  • Marker added to show Initial Speed change point and point of Final Speed on deceleration curve.

• Motion Analysis

  • Corrected graphics error when switching from Slider positioning to Manual Button at intermediate points.

• Time Distance (EDM)

  • Upgraded algorithm used for computing Time/Distance/Speed crosshair markers as older algorithm could miss some Speed points in lower display.

• Photogrammetry

  • Eliminated the error caused in producing Table data if user pressed Enter key after entering second (Y) Photograph coordinate.

• 360 Momentum

  • Turned off the Plane of Impact display when initially entering Vector Sum and Velocity Vector graphics.  The Right mouse (re-draw) button will toggle the display on/off.

• Pedestrian Vault

  • Corrected some ToolTip data that was set for Hydroplaning instead of Pedestrian Vault.

• General

  • Tweaked several sections and overall program for increased performance.

Modifications to REC-TEC (09202006)

• Time Distance Multiple Surfaces and Time Distance Multiple Events 

  • Re-worked to prevent fatal errors upon call up with AutoLoad engaged 

  • Both now allow RE-DO from surface or event without mandating that user be at last event

• Combined Speed Formula

  • This section has been added for quick calculations.  More detailed analysis is still available from either the Multiple Surface or Multiple Events sections

• Program Startup has been streamlined for quicker a Start

• Collision Avoidance Passing has improved graphics

• Many minor improvements including refined search for latest ADOBE (Reader) installed on computer if full program not available

• DRIVE3 updated to Jeff Muttart's latest specs

• Integrated Manual (F1 key) improved and expanded.

Modifications to REC-TEC (07212006)

• DRIVE3:  Twilight Distance Method added to Drive3 - calculates the distance for selectable illumination levels from headlights (D. Alfred Owens - published 1999 Transportation Research Board)

  • Path Intrusion (Front)

  • Path Intrusion (Side)

Modifications to REC-TEC (06212006)

• Animation Output Files - The following sections automatically create .CVS compatible output files in both Comma delimited (.cdf) and Space delimited (.sdf) formats. These files are compatible with Hi-Resolution Animation software such as Forensic3D and serve as documentation for the animation:

  • m-smacRT – (both vehicles - X, Y & Yaw)

  • Collision Avoidance Following – (both vehicles)

  • Time-Distance Multiple Vehicles – (both vehicles)

  • Time-Distance Acceleration

  • Time-Distance Deceleration

  • Time-Distance Multiple Events

  • Time-Distance Multiple Surfaces

  • S-CAM II Air Brakes

  • Motion Analysis (3D - X, Y, Z & Yaw)

  • Vault – Airborne (3D - X & Z)

  • Vault-Slide Integration (3D - X & Z)
    

  • These files can be viewed (and printed) by going to Files on the main toolbar on REC-TEC and selecting Animation Files.

  • Corresponding Output files, some offering additional information, are viewed (printed) using the Output Files selection.

  • Animation movies can be called through program using user selected player.
    

• Statistical Ranging using Monte Carlo Simulation Analysis

  • Improved graphics

  • Monte Carlo Array now saved and loaded with file
    

• Improvements in m-smacRT

  • LoadLast function in animation expanded

  • Space-delimited animation output files viewable and printable

  • Simulation in Progress frame removed if error generation message appears (REC-TEC interface)
    

• Improvements in S-CAM Air Brakes

  • Plus users may use either S-CAM or S-CAM II interface

  • Algorithm improved to speed computations

  • Improved handling of grade with new ToolTips on Data screen

  • Attempted Brake Force corrected for grade to match Available Brake Force

  • Data turns bold red if acceleration due to gravity (negative grade) exceeds attempted brake force computation

  • Message warns of acceleration exceeding attempted brake force with negative grade

  • Graphics lines change color (orange) if brake fore unable to overcome acceleration due to gravity on negative grade

Modifications to REC-TEC (05162006)

• Statistical Ranging using Monte Carlo Simulation Analysis

  • Built in Manual [F1]

  • Built in Help File (Jeremy Daily Paper)

  • 4 Graphics Options

  • User Selectable Significance

  • User Selectable Sample Size (10K, 20K, 50K, 100K)

  • Unlimited number of Data Points

• Modifications to REC-TEC (04162006)

  • New Collision Avoidance - Following section (Plus Option Feature)

    • Closure and evasive (turning and braking) maneuvers including times and distances

    • Independent acceleration rates for braking and lateral maneuvers plus maximum allowable rate

    • Lead and Following vehicles at constant or accelerated state

    • Tables indicate when perception could occur

    • Tables with required deceleration at user selected time intervals

    • Animation - Deceleration of following vehicle at maximum allowable rate to match lead vehicle speed and evasive maneuvers with data counters for speeds, times and distances

    • Animation - Continuous Repeat feature

    • Integrated Manual Section [F1]

  • AutoStats Lite Update

    • New 2006 Version from 4N6XPRT Systems

  • Interface and Run module for m-smacRT

    • "Silent" Run program - Saves time

    • Selectable "Velocity" vectors for all phases including Collision and Trajectory

    • Selectable "Acceleration" vectors during Collision phase

  • Time Distance Multiple Vehicle Animation routines

    • Improved Accuracy of display

    • Animation - Continuous Repeat feature added

  • Time Distance V-TRAX Animation

    • Ability to repair some corrupted files

  • Vault-Slide Integration Animation

    • Improved Graphics in Finite Difference Analysis section

  • Fall - Vault Airborne

    • Graphics added to Finite Difference Analysis section

  • Improved and refined Download Routine

    • Eliminates requirement to shutdown Browser when Upgrading program

  • Improved and refined Print Routine

    • Previously Captured Image Option less confusing

    • No Message interference with image 

  • Improved and refined Integrated Report Routine

    • Previously Captured Image Interference eliminated

    • No Message interference with image 

• Modifications to REC-TEC (03052006)

  • New Integrated Manual

    • A new Manual has been integrated into the program.  Click on Manual on the Main Screen or press the [F1]/[F2] key in any Active section. 

     

• Modifications to REC-TEC (02062006)

  • S-CAM II interface

    • The interface for Plus Option users has been dramatically upgraded to allow changes to be made to six axles per page for all of the input parameters for the individual axle sides.  In addition the user can now see the pushrod force for either the cold stroke or dynamic stroke adjusted for start temperature along with the force necessary to lock the wheel.  

  • Time Distance (EDM) - for Engine Control Module or CDR data

    • This section has been overhauled.  It will now permit individual phases (99) to be removed from the computations.  The graphics will show the resulting modifications in a different color on the deceleration curve.

    • The graphics have been refined along with a provision for calculating for the two unknowns in the D = S * T  equation.  The graphics will display on the deceleration curve, the first instance of the value for that variable and the corresponding values for the unknowns.  

    • The data generated from this section can then be transferred with a single click of the mouse to the Time Distance Multiple Events section.

  • Time Distance Multiple Events

    • Expanded to accept 99 different events in order to utilize the EDM (ECM or CDR data) from the Time Distance (EDM) section.

    • In addition to breakdowns by any time or distance interval, the section will create a space delimited text file for use by animators in creating real time animations from the Heavy Truck ECM or from the Vetronix CDR output data.

  • ToolTips 

    • Additional tooltips have been placed at areas where questions have arisen (Critical Turnaway in Time Distance Deceleration).