DSpace Collection: Thesis - Architecture and Urban planning

TEMPORAL URBAN GROWTH ANALYSIS AND POTENTIAL SITE IDENTIFICATION FOR A HIGH RISING BUILDINGS IN BAHIR DAR CITY

Sun, 06 May 2012 18:16:48 GMT

Title: TEMPORAL URBAN GROWTH ANALYSIS AND POTENTIAL SITE IDENTIFICATION FOR A HIGH RISING BUILDINGS IN BAHIR DAR CITY

Authors: HAIMANOT, MEBRATU

Abstract: ABSTRACT The Urbanization level and the land use dynamics of Bahir Dar is assessed in the field of GIS and Remote sensing technology for excellent understanding of the emerging growth pattern using multi temporal dataset. And the results from a study about growth trends of the urban areas in Bahir Dar are described here. The period under consideration is from 1957 to 2005. It should be noted that the internal urban growth is evaluated in a separate manner and in the pre 1957 urban centers of Bahir Dar during 1957- 2005 built up area increases from 13 hectares to 33.68 hectares. In the 1957-1984 expansion areas during 1984-2005 built up area increases from 166 hectares to 210 hectares. In the post 1984 expansion areas 363 hectares of land is used for built up. With regard to the external growth of Bahir Dar two distinctive phenomena is visible from 1957 to 1984 the city expand ten times to its size of 1957 and from 1984 to 2005 again a three times growth from its size of 1984 is observed. In addition to the above urban growth analysis a suitability model for identifying potential developable land for high rising buildings has been carried out. This analysis is based on the physical and social parameters, besides in the present research all the empirical observations, the RS imagery and the GIS analysis have been used. This has been done in an integrated conceptual and operational frame work which adds an indicative bottom up perspective to the understanding of urban growth pattern.

Spontaneous Development of Urban Centers

Mon, 20 Oct 2008 14:10:17 GMT

Title: Spontaneous Development of Urban Centers

Authors: Addis Mebratu

Abstract: Central areas in Adama have been transforming into either of two forms - blighted and decayed areas or congested and very poor quality urban environments. It seems that the problem exists as urbanization takes place in the context of relatively slow economic growth, ineffective legal and regulatory frameworks and perhaps an absence of a strong and functional social order, all leading to spontaneous urban development. The aim of this study is to understand how these urban areas became to be the way they are today. There have been a lot of studies on transformation of cities in the context of industrialized nations. It is not clear, however, whether or not these studies can explain the situation in the developing world. Attention thus far, in cities in the developing world, has been limited to amelioration of problems associated with poverty and delivery of infrastructure and social services. The quality of the urban environment was not considered as a priority. This study discusses the different stages in the transformation of central urban areas of Adama in general, and that of its commercial centers in particular, and the effects of the transformation process on the quality of the urban environment. life of the low and middle income inner-city residents of Addis Ababa. Financial, institutional and legal problems are also seen as the major problems that hinder the implementation of LDPs in Addis Ababa.

Public transportation system and its impact on urban mobility:

Sat, 18 Oct 2008 07:05:08 GMT

Title: Public transportation system and its impact on urban mobility:

Authors: Meron Kassahun

Abstract: A review of relevant literatures covering the issue of public transport and its impact on mobility suggests that, a heavy reliance on this mode of transport increases the efficiency of urban mobility while at the same time easing the level of congestion. The literatures reviewed also suggest that the presence of an efficient public transport system creates a safe, sustainable and equitable urban mobility. This study evaluates the extent to which the public transport in Addis Ababa has an impact on the urban mobility of the city. It also assesses the possible strategies and approaches that can be devised to enable this mode play a significant role in mitigating the worsening level of congestion that we see in the city today. The study mainly relies on secondary data for its analysis and findings; however primary data has also been generated and analyzed with the help of sample surveys and structured interviews. The overall findings of this study revealed that despite the fact that an efficient public transport system is the best way to maximize urban mobility, in reality this mode of transport is in a critical condition to begin with in Addis Ababa. Furthermore it has been observed that increasingly heavier reliance on vehicles with small passenger carrying capacity, such as private automobiles and mini bus taxi, is resulting in congested junctions, with heavy traffic. Other factors such as the existence of only one dominant core area in the city, demand overlap that emanates from the similar working hours that are observed for almost all institutions in the city have also been identified to be the main drawbacks that need to be addressed to create an efficient public transport system in Addis Ababa. While assessing ways that can make this mode become more efficient, it was further noted that there are other factors at play, namely, the existing transport infrastructure, the socioeconomic realities, the prevalent traffic management practices, that call for an integrated approach so as to create a multi layered exhaustive proposal . Finally the paper puts forward suggestions that revolve around policy issues and decision making considerations. Furthermore rather detailed and particular solutions to some existing realities of the pubic transport have also been included.

Description: Masters’ Thesis for Partial Fulfilment of Masters Degree in Urban Design and Development Addis Ababa University Faculty of Technology Department of Architecture and Urban Planning