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Overview: This module computes Acceleration/Deceleration factors and rates
based on supplied information.
Overview:
This module computes detailed information on the Speed, Distance and
Time of a single acceleration event.
Overview: This module computes detailed information on the Speed, Distance
and Time of a single deceleration event. If lateral information is input, the
module also computes detailed swerve and swerve-and-return data.
Overview: This
module computes comparative data for two vehicles in two individual
acceleration, deceleration or constant velocity events and offers animation of
the maneuver.
Overview: This
module computes the intermediate and final speed, distance and time data for
multiple (99) acceleration, deceleration, or constant velocity events.
Overview: This
module computes the intermediate speed, final speed, distance and time data
over multiple surfaces in an acceleration, deceleration or at constant
velocity.
Overview: This
module computes detailed information on the Speed, Distance and Time of an
Acceleration-Transition-Deceleration event.
Overview: This
module computes Acceleration/Deceleration factors and rates, Time, Distance,
and/or Speed as appropriate based on supplied information. It will create a
table of user-developed research data (pedestrian/vehicle study) for speed,
time, distance and/or acceleration/deceleration rates, which automatically
integrates into the Statistical Range (Monte Carlo) module in REC-TEC allowing
additional analysis (mean, range, variance, upper and lower bounds).
This very powerful module does all of the basic
computations of the Acceleration/Deceleration Factor, Acceleration Single
Surface and Deceleration Single Surface modules of the program in a single
module. It does not provide for graphics, animation, iteration or Finite
Difference Analysis, nor does it allow for Lateral Distance (Swerve / Lane
Change) computations, Grade and Braking adjustments.
Overview: This
module computes speed, time and distance required to either stop before
striking target vehicle, or decelerate enough to allow crossing target vehicle
to escape.
Overview: This
module computes the speeds, times and distances during which the vehicles are
exposed contact and during which contact will actually occur.
Overview: This
module computes the speed, time and distance at which a maximum rate
deceleration or an evasive maneuver must begin in order to match the speed of
the (accelerating, decelerating or constant-velocity) lead vehicle, thus
preventing a collision.
Overview: This
module computes the Time and Distance required to complete a passing maneuver
based.
Overview: This
module computes data on Turn and Lane Change maneuvers, including braking
during the turn, and compares different common formulae used in accident
reconstruction.
Overview: This
module computes the Fall/Vault Speed (along with ancillary information) for
specific input data regarding the horizontal and vertical change in the center
of gravity of a vehicle (object).
Overview: This
module computes the Vault Speed for Pedestrians using common formulae.
Overview:
This module computes the Pedestrian Vault and Slide information including
detailed vault data for a given throw distance, vertical change of CG, friction
value and known or optimum launch angle. It will also compute a solution Launch
Angle for a given speed.
Many
Pedestrian Vault formulae do not allow the user to input a Launch Angle. Most
of these formulae impute a launch angle using a constant within the formulae.
This enhanced (2011) module will take their computed speed and compute a launch
angle that generates the same speed given the same friction value, horizontal, and
vertical distances.
Caution: There may be more than one solution angle for
any given speed. This function will try to find the solution above the Optimum
Angle (High) and the one below the Optimum Angle (Low) for the input Speed. The
module also can be used in manual mode to search for other solutions.
Overview: This
module computes the Yaw - Critical Speed of Curve from Friction and Chord /
Middle Ordinate or Radius information.
Overview: This module computes speed dissipation from wheel forces due to
position. It can be used for spins, yaws or decelerations. This module can be used for either a
Critical Speed Maneuver or a Spin. Analysis is by position (Work-Energy
computation).
Overview: This module computes the Radius, Speed, Lean Angle and/or
Friction Factor for (2-wheeled) motorcycles or bicycles in a turn.
Overview: This module computes for
unknowns in the collision using Conservation of Energy.
Overview: This module computes the
unknowns in the basic Kinetic Energy formulae for complex events and displays
both the energy and momentum of the object.
Overview: This module computes Energy
to break a wooden pole (power pole, utility pole) based on its circumference.
Overview: This module
computes the Impact Speeds, Angles and DeltaVs for angular and inline
collisions using a Drag and Drop interface with digital inputs available on an
interactive graphical interface. This module interface effectively marries
output from the CrushV module and Motion Analysis modules using a graphics display
to consolidate information on position and damage analysis verifying the linear
momentum solution. It then takes the finalized data and transfers it to the 360
Linear Momentum module for further technical and statistical analysis.
Overview: This module
computes the Impact Speeds, DeltaVs, PDOFs, Energy and Momentum data for
angular and inline collisions.
Overview: This module computes the
Impact Speed, DeltaV and PDOF data for angular collisions.
Overview: This module computes the
speed of a striking vehicle using pre- and post-impact data in conjunction with
inertial and rotational information.
Overview: This module computes the
Closure Speed and DeltaV data in Low Speed Collisions.
Overview: This module computes
post-impact information based on input pre-impact information (Linear Momentum
in reverse).
Overview: This module uses enhanced
Crash3 Damage Analysis algorithms to compute collision data including Delta V
(change of velocity) for the collision.
Overview: This module computes
Kinetic Energy Equivalent Speed or Closing Speed of collision using the
Vomhof (4N6XPRT SYSTEMS) methodology employing Crush Factors.
Overview: This module computes the
Reduced Mass of vehicles in collision and the maximum and actual Energy
available for Damage and relative Translational Motion. It also computes the
Crush Energy Equivalent Speed (CEES) for the collision.
Overview: This module computes A, B,
and G Stiffness values using data obtained from car-barrier or car-impactor
collisions.
Overview: This module computes an
approximate deceleration adjustment factor for a vehicle in rotation.
Overview: This module computes the
speed at which a tire will hydroplane using published formula under various
(input) conditions.
Overview: This module computes the
Speed of a vehicle or bicycle based on engine speed and two gear ratios.
Overview: This module computes Tangent
Offset information.
Overview: This module computes
Passenger Vehicle, Straight Truck, Bus or other non-articulated Vehicles
three-dimensional center of gravity based on information about vehicle and
weights on the wheels when level and then raised. This module will also compute
rollover speeds and critical speed of curve data.
Overview: This module computes
compliance of on-grade crossings with the requirements of AASHTO/AREA
standards.
Overview: This module computes the
required Sight Triangle values at on-grade railroad crossings.
Overview: This module displays
graphically the operation of Electronic Rail Circuits.
Overview: This module uses the formula
Sqr (a^2 + b^2 + c^2
) to combine the entries.
It can be used for speeds, solving for the hypotenuse of a right
triangle, or any other numbers that must be combined in this manner.
Overview: This module does most of the
conversions used in AR.
Overview: This module computes the
real and imaginary roots of a quadratic equation.
Overview: This module computes
detailed information on a Triangle defined by three sides or side/angle
information.
Overview: This module provides
mathematical justification for the ranging of variables based on a limited
number of samples.
Overview: This module provides
two-dimensional numerical rectification of photographic images.
Overview: This module computes and
simulates the deceleration of S-CAM or Air Disc equipped vehicles based on Initial
Speed or Distance and the setup and adjustments of the vehicles braking system.
This module compensates for the heat created during the run.
Overview: This module computes
Articulated Vehicle axle weights and three-dimensional center of gravity based
on information about vehicle and load (Bill of Lading).
Overview: This module computes Straight
Truck, Bus or other non-articulated Vehicle axle weights and three-dimensional
center of gravity based on information about vehicle and load (Bill of Lading
or passenger manifest).
Overview: This module computes the
Maximum Off-Tracking of articulated vehicles.
Overview: This module computes the
Rollover Speeds of a vehicle based on vehicle dimensional data.
Overview: This module computes axle
weights and center of gravity for Articulated Vehicles based on information
about Tractor, Trailer and Load.
Overview: This module computes basic
Time and Distance information from data retrieved from Electronic Data Modules
(cars and trucks) and formats it for enhanced examination by the Time -
Distance Multiple Events module.
Overview: This module
animates up to four vehicles in various acceleration, deceleration or constant
velocity scenarios while allowing two of the vehicles to execute turning
maneuvers.
Overview: This version of
SMAC is a modification of the 1997 version that Calspan obtained from
UMTRI. In its original form as
downloaded from Calspan, it was unusable.
It has been modified slightly to make it functional and to produce the
required/desired output files.
Overview: Computes information for Pole / Narrow Object
Impact using Crush/Crash3, Vomhof, Nystrom & Kost, and Wood
methodologies.
Overview: Computes Speed from Motorcycle Crush Analysis. The paper Motorcycle Crush Analysis (Help
Button) is a reprint of the article by Wade Bartlett, PE appearing in Accident
Reconstruction Journal in March/April 2009. The paper is used with permission of the author and Vic Craig,
Editor of the Accident Reconstruction Journal.
Overview:
Computes the Resultant Vector (Length and Angle) from the Longitudinal
(and Lateral Vectors) recorded by Electronic Data Modules (SDM).