The May 6th release of the Sound Transit Agency Progress Report: March:2021 included the following Risk management issue for Northgate Link operation:
If there is a problem during vibration certification testing & analysis, acceptance by UW may be delayed, thereby delaying RSD (Revenue Service Date)
The same Risk Management issue was in the April 7th, February 2021 report. The concern was the result of a "Master Implementation Agreement" (MIA) between Sound Transit and University of Washington regarding operation of light rail in a tunnel under the campus.
In no event shall Sound Transit commence Revenue Service on University properties if (Vibration and MF) Thresholds are exceeded.
A previous post had opined the April 9th announcement Northgate Link was to begin service Oct 2nd, just two days after February report was released was welcome, but "unexpected". The assumption being between the April 7th report release and April 9th debut announcement the UW had concluded the Northgate Link "vibration certification testing" in January and February had demonstrated acceptable vibration and MF levels.
Thus it's not clear why the May 6th, March 2021 report still has the same "risk". However it "may" explain why the Program Schedule in that report also shows the Northgate Link's Revenue Service Date as 26-Sept-22 nearly a year after the announced Oct 2nd debut.
The fact remains three months after completing "vibration certification testing" and four months before revenue service is scheduled to begin the UW apparently still hasn't accepted Northgate Link vibration and MF levels. What is Sound Transit plan to deal with the issue?
No comments:
Post a Comment