neighborhood units surrounded by green parkways. He draw beltway as a special feature for the plan characterized by radial shapes intended to channel the traffic away from central area, kept to green belts. Abercrombie achieved a careful plan of major traffic route, by separating neighborhood units, and taken from his solution for London traffic problem in 1943. The outer ring road lying to streams of Kebena, one passing through Awash Winery, thus making organic nature of the neighborhood unit He also proposed satellite settlements around in Addis Ababa, which were designated for service center (for school, health centers, etc). Abercrombie developed monumental feature and grid system that was prevailed during the Italian occupation, which seemingly contradicted the Italian master plan in particular areas such as Addis Ketema and Mercato. In 1959, British consultant team Bolton Hennessy and Partners commissioned an improvement of Abercrombie's 1954–56 master plan regarding satellite towns. Places like Mekenissa and West of the old Air Port areas were not incorporated to the proposal, and Rapi, Gefersa, Kaliti and Kotebe proposed as outlet of Jimma, Ambo, Mojo, and Dessie respectively (the four regional highways). The plan of Hennessy and Partners illustrated metropolitan development surrounded by satellite towns that was larger than the current size of Addis Ababa physically. In 1965, the French Mission for Urban Studies and Habitat led by Luis De Marien's prepared master plan for the city responsible for creation of monumental axis passing through Addis Ababa City Hall through railway station extending to Gofa Mazoria in the southern part of the city. The difference between Lius De Marien's plan with the Italians was the Italians used double monumental axis, while Marien used the single monumental axis. Through visual links by connecting the Addis Ababa City Hall and the railway station in the south, it gave impression to Champs-Élysées in Paris that extended from Louvre area to La Defense district of the city. Haile Selassie helped form the Organization of African Unity in 1963, and invited the new organization to keep its headquarters in the city. The OAU was dissolved in 2002 and replaced by the African Union (AU), also headquartered in Addis Ababa. The United Nations Economic Commission for Africa also has its headquarters in Addis Ababa. Addis Ababa was also the site of the Council of the Oriental Orthodox Churches in 1965. According to Pankhurst (1962) survey, 212 square kilometers, 58% of total land