https://dailyhive.com/vancouver/vancouver-seattle-differences
Seattle is allowed to have longer trains than Vancouver, but the Link_Light_Rail isn't completely separated from the surface streets like SkyTrain is. Thus SkyTrain always has the potential to run more frequently. There is a lot of potential to eventually run a Link_light_rail train every few minutes during the busy times. Its just a matter of having enough extra trains. SkyTrain needs to be longer & even more frequent when necessary.
