In terms of habitat, size matters. It is so refreshing to see transportation planning that seeks to ameliorate - however imperfectly - the fragmentation to habitats caused by highways. I look forward to lots more of this type of thing, as well as removing many roads outright.

Until 15 months ago, a highway underpass beneath the Riverside Freeway was a favorite hideaway for sleep-deprived truckers in search of a nap. Today, hopeful signs indicate that four-legged creatures are reclaiming the passageway as a critical wildlife crossing.