Triangle Associates

2022-12-25
North Sea-Tac Park master plan update

The North Sea-Tac Park Master Plan Update is a joint planning document produced by King County and the Port of Seattle, prepared by Triangle Associates/Jones & Jones. It outlines recommended updates to the master plan for North Sea-Tac Park, including a phased development program and alternative implementation strategies. The plan reflects a collaborative effort to guide the park's future development in the area surrounding Seattle-Tacoma International Airport.

TagsKing County, North Sea-Tac Park, NSTP, Parks, Port Of Seattle, Triangle Associates
1982-04-09
Community assessment postponement letter to interviewees

A April 1982 letter from Triangle Associates notifies interviewees that a planned April 13 presentation of a community assessment for the Port of Seattle has been cancelled due to the report's length, complexity, and printing delays. The full report was expected to be mailed within a week, with an executive summary enclosed as a preview. The study, initiated by the Port's Public Information Director Lynn Taylor, was intended to inform future public outreach planning based on Triangle Associates' findings and recommendations.

TagsNorth Sea-Tac Park, NSTP, Outreach, Port Of Seattle, Triangle Associates

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.

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