Oi Yeung, 82, killed after she is struck by a hit-and-run driver while attempting to cross Visitacion Avenue and Bayshore Boulevard in San Francisco, California

A woman in her 60s who was using a crosswalk in San Francisco's Visitacion Valley neighborhood was struck and killed Thursday by an SUV driver who circled back to look at the fallen victim before speeding away, police said. The hit-and-run at 11:15 a.m. at the intersection of Visitacion Avenue and Bayshore Boulevard marked the city's sixth pedestrian fatality of the year and 12th since December, a run of bloodshed that has put a spotlight on a longtime problem and prompted calls for more aggressive action. According to police officials, Thursday's collision happened after the woman, who was not immediately identified, walked east on Visitacion Avenue and attempted to cross six-lane Bayshore Boulevard, which has a center median. The intersection is signalized, and the woman, later identified as Oi Yeung, 82, was said to be in the crosswalk with the right of way. Also moving east on Visitacion Avenue was a white Dodge Durango with a black ski rack on its roof. At Bayshore Boulevard, police said, the driver appears to have turned left on a solid green light, failing to yield to the pedestrian and striking her in the northbound lanes. The driver continued north for one block to Leland Avenue, police said, before doing a U-turn, driving back slowly to observe the result of the collision, and speeding away south. Paramedics who responded to the scene pronounced the woman dead, and the driver remained at large. Bayshore Boulevard, a busy thoroughfare, often sees reckless driving and speeding, in part because it feeds into Highway 101 to the north, said Gary Binauhan and Philippe Gonzalez, who work at a nearby auto repair shop. They said police used to post up along the road to catch speeders, but haven't recently. "Sometimes when we park our cars on the street, we're afraid to open our doors because they're just speeding down," Binauhan said. "They exit from the freeway and think they're still on it," Gonzalez said. He added that he wished the penalties were higher for careless drivers. "They don't pay enough for the crime," he said. The uptick in pedestrian deaths in the city spurred supervisors and safe-walking advocates to call on city agencies to develop a strategy to eliminate fatal vehicle collisions within 10 years. Earlier this month, Mayor Ed Lee gave his support to Walk First, a program investing $17 million to make 170 problem intersections safer for pedestrians. The funding would jump to $50 million, and cover 265 intersections, if voters approve a package of transportation taxes and fees scheduled for the November ballot. The majority of San Francisco's problem intersections are located in the Tenderloin and South of Market neighborhoods, areas that see a lot of foot and car traffic. Bayshore Boulevard, which sees a relatively small amount of foot traffic, has not been identified as a problem roadway. By Thursday evening, the driver in the fatal crash had not been arrested. Gonzalez expressed dismay that the man didn't stop after realizing what he had done. "I was out front all morning and I didn't hear any screeching brakes or anything," he said. "It was quiet. The guy, I don't think he even stepped on the brakes."