Police say Han Van Hoang, 43, of Quincy was the driver of that vehicle. Also killed in the crash was a 3-year-old female who was secured in a car seat inside the vehicle.
Police responded to report of a single car crash on I-495 South in Chelmsford at 12:50 a.m. Sunday morning.
According to police, the preliminary investigation indicates a 2004 Toyota Camry was driving south when it veered to the right and crossed over a raised island that separates the highway from the Chelmsford rest stop. The Toyota then continued through the grass and struck a guardrail killing both the driver and passenger.