FSUTMS Comprehensive Modeling Workshop - Cambridge ...

Special Generator Method (Cont’d)
► Example (Cont’d):
Large Lot is already
present in the model,
so Big Box would
need to be added.
If Big Box were
coded into the model
as a traditional
FSUTMS land use,
the corresponding
TAZ would possess
400 commercial
employees in the
zone data file.
As a result, they
would generate
approximately the
same number of
trips.
Large Lot
4,324 Trips
Big Box
4,324 Trips
FSUTMS--CUBE MODELING TRAINING SERIES
29
Special Generator Method (Cont’d)
► Example (Cont’d):
If, on the other hand,
Big Box were coded
using the special
generator method, Big
Box would have no
data in the zone data
file.
Instead, the special
generator file would be
run iteratively until we
reached the ITE
vehicle trip value for
this land use: 10,519.
Even though both sites
have similar
characteristics, Big
Box becomes much
more attractive than
Large Lot.
FSUTMS--CUBE MODELING TRAINING SERIES
Large Lot
4,293 Trips
Big Box
10,519 Trips
30
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