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Seaport Impact Studies

Martin Associates' seaport impact studies are used at more than 90 seaports throughout the world.  Martin Associates completed economic impact analysis of the 16 major United States ports of the Great Lakes by developing port models for each, individual port. In 1987, Martin Associates completed an unprecedented study of the economic impact of the 15 leading Canadian seaports for the Canada Ports Corporation.

The Martin Associates seaport impact models are also used to assess alternative designs of marine terminals. We develop the economic impacts of a terminal based on dedicated uses of the terminal.  For a given terminal we can compare the jobs, income and port revenue that would be created under full-utilization if the terminal were used for a mixed use terminal (containers, breakbulk, Roll On/Roll Off) or an auto terminal or a bulk terminal or a cruise terminal. Given the fact that demand exists for each of the terminal uses, it is possible to use the impact models to assess the economic development benefits of each terminal alternative and to further lobby for port development financing.

Our economic impact approach is used for many reasons other than its original purpose of estimating the impacts of port activity:

  • Canadian Coast Guard: Martin Associates developed impact models for 11 ports in Newfoundland , New Brunswick , Nova Scotia and Quebec to assess the economic impacts of icebreaking services on Eastern Canadian ports.
  • Canadian Justice Department: Martin Associates developed a model used to estimate the impacts of ILWU work stoppages on the Canadian west coast ports of Vancouver and Prince Rupert .
  • State of Maryland: Martin Associates used the approach to estimate the economic impacts of exports and coal production.
  • Port of Philadelphia: Martin Associates used the approach to estimate the economic impacts of closing a coal export facility. The impact model was also used to measure the impact of increased use of rail at the Port's new inter-modal rail yard for container moves to and from the port. A cruise impact model was also created for the Port.
  • Port of Oakland: Martin Associates used an impact study to estimate the economic impacts of dredging.
  • Port of Seattle: Martin Associates conducted several facilities impact studies. We evaluated the economic impacts generated by alternative land uses of a 50-acre tract of land, and included the impacts of a container terminal versus a shipyard. The Port followed our recommendations for container facility expansion. In another study performed for the Port of Seattle , Martin Associates evaluated the economic impacts by future container facility development. We used the impact model developed for the Port in 1988 to estimate the impacts of new breakbulk facilities development in Seattle , as well as the economic impacts of a new container facility. A cruise impact model was also designed for the Port.
  • Port of Longview: Martin Associates used a seaport impact model to estimate the impact of the Port’s potential marketing strategies. In addition, the Port will use the model to estimate the impact of the potential downturn in log exports due to the Spotted Owl.
  • Port of Portland (OR): Martin Associates developed separate impact models for each of the Port's lines of business: seaport, airport, shipyard and real estate development. The impact models are used to assess the impacts of alternative capital investment in airport vs. seaport vs. shipyard vs. real estate development.  The Port of Portland uses the impact models to identify the jobs, income, and revenue impacts associated with each Port investment.  The results are used in the Port's annual report to describe the economic importance of the investments made by the Port over the fiscal year.