Article as published at Crosscut
Population in the four counties of Central Puget Sound will have grown from the 2008 total of 3.6 million by another 1.4 million in 2040. Jobs will increase by 1.1 million, and – based on the region’s collective proclivities to date – total vehicle miles travelled (VMT) by more than 40 percent. Barring some big paradigm shift, the percentage of daily “passenger” work trips (freight vehicles not included) which occur on transit will grow from 8 percent of the current (2006) total to only 9 percent in 2040. For far more numerous non-work passenger trips, the transit market share stays at a scant 2 percent between 2006 and 2040, according to recent modeling. The vast majority of daily passenger trips occur in cars now and then. For work it’s more than four of five, for non-work, about nine of ten. (The rest are split between transit, walking and biking.) On the upside, there’s a lot more ride-sharing for non-work trips; plus, per-capita VMT will continue to stay flat; and we can shave a bit off the expected growth in total VMT by meeting (elusive) regional growth strategy targets.
These are some of the conclusions in a March 2009 background paper that’s part of the Puget Sound Regional Council’s “Transportation 2040” planning effort. Future projections may change slightly under new computer modeling in a draft environmental impact statement due out at month’s end. But you get the idea. The PSRC’s 2040 picture begs a huge question: what to do about it all. And, as we’ll see in a moment, it turns out that, away from the big transportation headlines it made last session, the state legislature has some ideas of its own.
My own take: A comprehensive approach to managing peak-hour highway capacity in Central Puget Sound should be launched by bravely establishing – and soon – a seamless regional system of variably-priced, automated and ultimately, corridor-length tolling on highways and major state routes. This must be folded into a broader plan to develop stable long-term funding for the region’s surface transportation network.
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