VISSIM 5.30-05 User Manual

Acceleration and Deceleration Functions
HGV vehicles do not use a random value but the power/weight ratio instead.
With metric units, the minimum is 7 kW/ton and the maximum is 30 kW/ton,
which means an average of 18.5 kW/ton.
Accordingly, the following applies:
► All HGV with a p/w ratio of 7 or less will use the minimum curve.
► All HGV with a p/w ratio of 30 or more will use the maximum curve.
► All HGV with a p/w ratio of 18.5 will use the average.
► For HGV with any other value, linear interpolation will be performed.
If your actual power/weight ratios are outside of this range, it is necessary
to use separate maximum acceleration curves (and separate vehicle types)
for specific power/weight ranges, with a very small spread.
After the interpolation, the maximum acceleration is modified by the
gradient, as described above.
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