STAMFORD — A traffic light proposed for Strawberry Hill Avenue is next in a series of planned safety measures for the busy street fronting Stamford High School, where a student was struck and killed by a car last month. “People are afraid, and they shouldn’t be,” said David Avery, president of the Strawberry Hill Neighborhood Association, an organization formed in response to traffic concerns. [...] that the crosswalk is back, the city hopes to add either a traditional traffic signal or one activated by pedestrians in front of the school, where cars turn to enter or by the steps leading to the building. According to Martin, 30 percent of accidents on the road result from left turns.