Police identified her Wednesday night as Sheila L. Robinson, 50, of 9 Country Club Rd., according to Senior Investigator Thomas Hughes of the Major Crimes Unit of Troop L.
State police spokesman Frank Bandiero said the accident, which occurred at 6:11 a.m. between Exits 42 and 43 on the westbound roadway, remains under investigation.
It is not clear why Robinson was on the parkway, he said.
The driver of the Volkswagen Passat, the first car to strike Robinson, left the scene but was later found, police said. Two other vehicles also hit her, he said. No charges were filed.
The accident closed the road between the two exits for several hours, police said.