rural areas, and the second was the development of inner-city; residential layout for self-help housing projects. Polonyi also worked to redesign Meskel Square which was named by the time Abiyot Square, and implemented immediately through the name change. The square was subjected to major development during the Derg regime by linkage to Arada railway station. Polonyi planned Addis Ababa to become megacity through connection with neighbor town, Adama. It was intended for creating agricultural conglomeration from south-east. In 1986, a master plan was created by 45 Ethiopian professionals and 75 Italian experts. In preparation, 237 sectorial reports were documented as references, with a concept of developing balanced urban system and integrating to surrounding regions and metropolitan areas. It also prepared whether to identify the city service such as water supply and other urban-related service available to the area. From the envisioned map, Akaki should be incorporated to Addis Ababa to supply industrial and freight terminal services. The 1986 Italo-Ethiopian master plan despite extensively projected, delayed for eight years due to the bureaucratic system of the Derg government, and finally approved in 1994. The suspension caused fragmentation of services and public areas and affected unplanned development that intended for structure the urban form of the city. On 28 May 1991, the Ethiopian People's Revolutionary Democratic Front (EPRDF) coalition party in course of overthrowing the Derg government, seized Addis Ababa. According to witness, resident were not terrorized by the event and a militant remarked "We think it's safe now". They engulfed the central place of city such as Hilton Hotel, displaying a banner read as "Peace, Solidarity, Friendship". At 5:30 am, they completely controlled the presidential area and large-scale tanks were seen overrun. Federal Democratic Republic (1991–present) During the EPRDF transitional government first three years, Addis Ababa's urban growth was slowed down. Housing allotment continued for two years and replaced by real estate that allows to individual ownership. A new constitution was adapted in 1994 and enacted a year later: while all cities in Ethiopia administrated by regional authority, only Addis Ababa (Proclamation No 87/1997) and Dire Dawa (Proclamation No 416/2004) remain chartered cities, mandates for self-governing and developmental center. 21st-century By the end of 1998, a new project was launched by Addis Ababa City Administration and named as Office for Revision of Addis Ababa Master Plan (ORAAMP) and new master plan was set up named Revised Addis Ababa Master Plan that