SouthWest Gas and its contractor National Pipeline has left equipment parked on the East side of Houghton Road Just North of Camino Quince, Tucson Arizona. They have left three tractors there. The area is the sidewalk area and East side of Houghton Frontage Road clearly marked with no parking signs. I understand the need for utilities to do work in their easements but no work has been done for the last three days. This area is not a storage facility it is a residential neighborhood. If your completing a job then get on with it or move the equipment. Its a safety hazard and an eye sore!