STISIM Drive (SDL) - CSET - Set Crash Parameters
Change the simulation’s
crash parameters. When a driver crashes during a simulation run, their vehicle
is automatically set back to the position in the roadway specified by
"Initial Position" on the Initialize tab
of the Configuration form. Additionally, under the Crash Options section of the
Sound tab of the Configuration form you can specify if
and how the crash sound effect will be used during a crash. Because these
parameters are specified in the Configuration File, they will remain constant
for the entire simulation run, unless there is an event that can change them.
This event will do this for you. In general you will probably just set the values
in the Configuration File and them leave them alone, however, there are some
cases when you may wish you had a little more control.
EVENT PARAMETERS:
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PARAMETER 1: |
This parameter is a flag
that tells STISIM Drive how the crash sound effect will be
used. To specify how accidents will be handled, set parameter 1 to one of the
following: 0 - Play recording, reset
lane position and speed |
|
PARAMETER 2: |
Initial position of the vehicle with respect to the roadway’s dividing line, positive to the right (feet). |
|
PARAMETER 3: |
Distance off the edge of the road where a crash occurs, positive to the right (feet). Leaving this parameter blank will retain the same value as before. |
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PARAMETER 4: |
Buffer distance after an accident has occurred before another accident can occur (feet). Leaving this parameter blank will retain the same value as before. |
EXAMPLES:
1000,CSET,0,10
1000,CSET,2,-5,,250
This event is generally
only used when you are forcing the drivers to follow certain paths and there is
a chance that if they crash, they will be in the wrong position when the
simulation begins again. For instance if you have a scenario where traffic is
approaching from the rear in a certain lane. If the driver crashes, you
probably do not want them to be placed into the lane with the oncoming traffic.
In the first example shown,
the crash parameters will be reset to 0 and 10 respectively after the driver
has traveled 1000 feet down the road. From this point on, all crashes will
result in STISIM Drive stopping and playing the crash sound effect.
At the conclusion of the sound effect playback, the driver’s vehicle will be
placed 10 feet to the right of the roadway dividing line. Notice that
parameters 3 and 4 were left blank therefore the values for these parameters
will not change. The second example sets the crash parameters so that the
simulation will continue to run (at the driver’s current speed) while the crash
sound effect is being played, and the driver’s vehicle will be moved, from the
point of collision, 5 feet to the left of the roadway dividing line. Finally,
the value of 250 for parameter 4 tells the program to change the crash zone
buffer to 250 feet. This means that the driver will have a 250 foot safe buffer
after an accident where no other accidents can occur.