Susan Handy's book is a no-nonsense analysis of the car-centric transportation policies in America today, how they became this way, and what possible changes might be on the horizon. Of course, as Handy points out, she has spent almost her entire career assuming that such changes were right around the corner because they make so much logical sense, appealing across party lines, only to be bewildered at how little progress has been made. Inertia counts for something. Still, she sees a growing awareness from some policy-makers, engineers, and politicians that previously sacred goals like "reducing congestion" are not actually sensible aims, and that at least from a philosophical standpoint, the tide is starting to turn. Chief among this is an acceptance that transportation systems should be designed to move people, not vehicles (duh) and that accessibility of goods and services is more important than mobility (mobility doesn't matter as much if the things we want to travel to are easily accessible). It's sad that it's taken over a hundred years for more obvious approaches to emerge, but here we are at last.
Shifting Gears is eminently readable, but is unlikely to be read outside of the community of transportation wonks (hello) that find this stuff already fascinating. While one wishes it had the animating power of something like Ralph Nader's Unsafe at Any Speed, this is unlikely to happen. At best, it's a good jumping off point for aspiring civil servants to formulate transportation policy going forward, and to rein in well-intentioned but myopic transportation engineers.