 This park system has since become known as the Emerald Necklace of Boston.The Arborway begins at a large rotary that connects it with the Jamaicaway, and curves past the main entrance of Arnold Arboretum (125 Arborway), where on-street parking is allowed.The roadway once continued through Forest Hills to the edge of Franklin Park, but now ends at the South Street border of the Arboretum.