Richard Blodgett, longtime resident and unofficial historian of Charlton St., right, spoke with Philip Kassen, director of the Little Red School House, and crossing guard Esperanca Varela — who was on her break — last week while Blodgett circulated a petition for pedestrian safety at the intersection of Houston St. and Sixth Ave. Signatures are being collected throughout the neighborhood. The petition calls on the city’s Department of Transportation “to implement meaningful changes to make the intersection safe for pedestrians.” Soho resident Jessica Dworkin, 58, was killed at the intersection on Aug. 27 as she was riding her kick scooter to Greenwich House’s senior program and was hit by a long, flatbed tractor-trailer truck turning from Houston St. onto Sixth Ave.