FSUTMS Comprehensive Modeling Workshop - Cambridge ...

Trip Table
A table showing trips between zones -- either directionally or total two-way. The trips may
be separated by mode, by purpose, by time period, by vehicle type, or other classification.
Trip Rate
The average number of trips per household for specific trip purposes. In Florida, trip
rates are usually applied by household size and auto availability within each zone by trip
purpose.
Validation
The procedure used to adjust models to simulate base year traffic conditions. A
preliminary step that must be undertaken before models may be reasonably used to
forecast future traffic conditions.
VHT
Vehicle hours of travel.
VMT
Vehicle miles of travel.
Volume-to-Capacity Ratio
The number of trips simulated in the model divided by the capacity of the link. A
volume-to-capacity ratio of 1.0 represents 100 percent of the capacity.
Volume-to-Count Ratio
The number of trips simulated in the model divided by the count on the link. A
volume-to-count ratio of 1.0 represents an exact match between the simulated volumes
and the observed counts. Typically assessed only during validation.
.
FSUTMS Comprehensive Modeling Workshop– Glossary of Terms Page 21