The tunnel belonged to King County, not the city government, and transferring it to Sound Transit was in fact a wise decision. It would not be possible to run a

The tunnel belonged to King County, not the city government, and transferring it to Sound Transit was in fact a wise decision. It would not be possible to run a train every six minutes during peak hours if they still had to share the tunnel with buses, and the 3rd Ave transit corridor sees more bus throughput than the tunnel ever did.