(General Optimization of Distribution Systems) is a modeling framework
designed to support the analysis of freight traffic flows at the
regional or urban level.
model uses data on current traffic flows, regional
economic growth potentials, and specific industrial development
proposals to develop total freight traffic flows and forecasts.
The methods used in the GOODS©
model include specific and different analysis systems for bulk,
unitized traffic (container or trailer on flat car or truck), and
parcel traffic. Bulk traffic is forecast on a product-specific basis
(e.g., coal, ores, grains, and oil), while non-bulk traffic is forecast
using more aggregate maket-related techniques. The impact of new
routes, infrastructure, costs, or service implications is assessed
to provide both modal and route choice traffic predictions.
The evaluation processes of the GOODS©
model include both financial and economic analyses
that identify the commercial potential of new transportation infrastructure,
as well as the economic benefits to users and surrounding communities.
model operates directly in conjunction with
the Economic Rent Model RENTS©
to provide output benefits (employment, income, and property values)
associated with any specific freight infrastructure improvement.