California does not build many freeways. So as Caltrans has opened segments of the Interstate 210 freeway in Los Angeles and San Bernardino counties, the road has received an unusual amount of attention — especially regarding how the state actually built the freeway and what impact it will have on traffic congestion.
But the most interesting, and easiest to overlook, aspect of the 210 Freeway's construction is the fact that it has altered the role of a major arterial street through a series of suburbs.