This November, those of us who live in and around Seattle will vote on a $17.7 billion transportation package that would expand light rail (by 50 miles) but also include billions for road expansion -- including roads that will primarily serve sprawling developments to Seattle's south and east, making the package a Hobson's choice for environmentalists. (The state legislature tied the roads and transit votes together last year, on the theory that road supporters will only support transit if it's accompanied by pavement, and vice versa.)
A lot of the debate around whether the package is good or bad, environmentally speaking, has centered around whether the roads part of the package (known as the Regional Transportation Investment District, or RTID) consists mostly of "good" or "bad" roads. There are a lot of elements to this debate, the first of which is: What constitutes a "good" road? Are new HOV lanes "good" (because they serve people who are carpooling) or "bad" (because they're still new road miles), and could they have been created by converting preexisting general-purpose lanes to HOV lanes?
Another issue is whether roads that are designated primarily for freight, but can be used by single-occupancy cars, count as "good" or "bad." Further confusing matters is the question of whether already-clogged roads produce more or fewer greenhouse gases when they're expanded to accommodate more traffic, because traffic moves more smoothly (at least for a little while.)
Given all those variables, it's not surprising that Seattle's environmental community is split on whether RTID/Sound Transit is a good or a bad thing.
