Since he moved to Los Angeles four years ago, Manhattan-born Artist Howard Warshaw, 30, has been fascinated by the crash and crush of its snarled traffic. For him, the city's traffic signals, with their brightly colored blinking eyes, have "the directness and brilliance of Indian pictorial sign language." One night, when he saw the bold white lines of intersection crosswalks framing a wrecked car and its injured driver, he decided that the "awful picture is the culmination of everything . . . the time when everything interlocks," went home to paint it.
In a Beverly Hills gallery last week, a traffic light...