The vote comes as the regional transit agency faces rising construction costs, inflation and lower-than-expected revenue projections. SEATTLE — Sound Transit’s governing board approved a long-term plan Thursday aimed at addressing a projected $34 billion funding gapformally acknowledging that major transit projects approved by voters nearly a decade ago cannot all be delivered on their original timelines. The board approved the resolution in a 16-2 vote following hours of public comment and debate at Union Station in Seattle. This story continues below. The vote comes as the regional transit agency faces rising construction costs, inflation and lower-than-expected…