FSUTMS Comprehensive Modeling Workshop - Cambridge ...

Mode Choice
Mode choice models calculate which trips will use the highway network and which will use
the transit network. The model predicts how the trips will be divided among variable
modes of travel.
Mode of Travel
Means of travel such as auto driver, vehicle passenger, mass transit passenger, walking
or bicycle.
Nested Logit Model
Analytical form for demand modeling that is suited to modeling of multiple travel choice
situations by grouping different modes of travel according to their likelihood for direct
competition.
Network
Set of nodes and connecting links that represent transportation facilities in an area.
Attributes normally associated with links are distances, levels of service, capacities, and
volumes.
Node
A point where two links join in a network, usually representing a decision point for route
choice but sometimes indicating only a change in some important link attribute.
Occupancy Model
Converts person trips to vehicle trips using auto occupancy factors.
Origin
The location of the beginning of a trip or the zone in which a trip begins.
Park-and-Ride
A type of transit trip characterized by the act of parking at a transit station and boarding
a transit line.
Path
A set of links representing a possible route between an origin and a destination. There
can be a number of paths between any specific origin and destination pair.
Peak Period
The period during which the maximum amount of travel occurs. This may be one or more
hours. Generally, there is a morning peak and an afternoon peak and traffic assignments
may be made for each period.
Productions
The number of home-based trip ends in the zone of residence. For all non-home based
trips, productions are synonymous with origins.
FSUTMS Comprehensive Modeling Workshop– Glossary of Terms Page 18