WSDOT’s recent study of high speed ground transportation in the Cascadia Corridor raised hopes that much faster rail connections to Vancouver and Portland may be in our future. The Governor has requested a more comprehensive study in 2018.
Depending on the technology and alignment chosen, a high-speed rail service could cover operational costs by 2035. However, capital costs may be large, with estimates ranging as high as $42 billion. Annual ridership in 2035 is just 1.9 – 2.6 million, rising to 3.1 – 4.2 million annual riders by 2055. That seems too low to warrant such a large investment unless costs can be dramatically reduced. Policy makers may conclude the more promising path is to pursue incremental upgrades.
The study examined high-speed rail and maglev technologies with maximum operating speeds of at least 250 mph. The hyperloop is briefly reviewed, but that technology is too speculative for useful cost estimates. After screening, three conceptual north-south corridors were studied in most detail, all serving the Portland, Seattle, and Vancouver markets. Corridor 1A serves seven stations with a combination of urban core and periphery stations. Corridor 2 serves only the urban cores and Portland Airport. Corridor 4 is a lower cost option serving just three suburban stations. The latter option reduces costs somewhat, but also reduces ridership because the slower local rail connections to business districts increase total travel time for many users. Continue reading “High speed rail study predicts low ridership”