PHILADELPHIA - The City of Philadelphia on Monday began work on new bike lane improvements across the city, just days after a woman was fatally struck while riding her bike near the Art Museum.The Philadelphia Streets Department is starting work this week on improving six bike lanes in hopes of improving bike safety on the city's streets.Kay Fakuda was cycling her way to a late morning meeting on Monday, navigating her way through the always-tricky bike lanes in the Art Museum areas."I'm very careful, and I try to run my errands at a time when it's not so busy here," Fakuda explained to FOX 29's Dave Schratweiser.Fakuda was traveling almost the exact same route as the 74-year-old woman that was struck and killed on her bike Saturday morning.