Simulating informal settlement growth in Dar es Salaam, Tanzania: An agent-based housing model

2011 ◽  
Vol 35 (2) ◽  
pp. 93-103 ◽  
Author(s):  
Ellen-Wien Augustijn-Beckers ◽  
Johannes Flacke ◽  
Bas Retsios
Author(s):  
H. Vahidi ◽  
W. Yan

The informal construction of dwellings (housing) and the informal growth of transport infrastructure are two main dynamics of an informal settlement growth phenomenon that may influence each other over time. Some studies have been done to understand the growth mechanisms of informal settlements, but not enough attention has been paid to study the informal growth of transport infrastructure dynamic. In this study, the morphology and spatial pattern of different types of informal settlements have been reviewed and categorized to clearly define and formulate the mechanisms of informal transport infrastructure formation in the context of informal settlement. To this end, two different dynamics have been suggested in this study for modelling of the growth of informal transport infrastructure. In the first suggested dynamic, the infrastructure is extended directly as the result of consolidation of the physical signs of dwellers’ movement (foot prints) on the environment over time. In the second proposed dynamic that is the main focus of this study, the informal infrastructure growth could be considered as the function of dwelling construction (housing) dynamic in the settlement. In this context, informal transport infrastructure is extended based on an indirect dynamic by consideration of the void spaces by dwellers as the accessibility corridors in the settlement during the construction process of the settlement. Finally, to study the validity of the second proposed dynamic for modelling of the indirect growth of informal transport infrastructure, a simple conceptual model was developed and tested and the results were evaluated and discussed.


Author(s):  
Tumpale Sakijege ◽  
Junun Sartohadi ◽  
Muh Aris Marfai ◽  
Gabriel Kassenga ◽  
Samson Elisha Kasala

Author(s):  
Dennis N.G.A.K. Tesha

This paper explores various households livelihood coping strategies in the urban informal settlement of Mlalakuwa in Dar-es-Salaam, Tanzania. It employed a case study method in the urban informal settlement of Mlalakuwa. Multiple data collection tools were employed, in which semi-structured interviews with key informants, field observations, sketches, mapping and photographic registration, were used in collecting primary data through household survey, while literature review, was used in collecting secondary data. Descriptive statistical and content analysis were employed in data analysis.The paper revealed that; households in the study are involved in a lot of livelihood activities, such as urban agriculture and livestock keeping (i.e. pigs, chicken and cow), as well as trading these goods in the market, shop keeping, selling pharmaceutical, monetary services (banks, and mobile money), brewing of local drink, running female and male hair dressing saloons as well as selling their products, vehicle and motor cycles repairing, milling machines, taxi-running and driving, motor cycles-running and driving, mobile shoe shining and mending, food processing and vending, food product street hawking, fish and meat butchery, selling fuel wood and charcoal, tailoring and cloth retailing, carpentry, welding and metal working, bricks and pavement material making, building materials retailing, oil and gas trading, etc. drawn by combining both tangible and intangible assets, as a strategy in coping with life stress and shocks. It argues that the informal economy plays a crucial role not only for the lower income earners, but also the middle and higher income earners, with everyone depending on one another, in different livelihood activities. Living together in one area, the three income earning groups, involves themselves in agricultural (farm) and non-agricultural (non-farm), monetary (economics) or non-monetary (non-economics), livelihood activities which all ernes them capital, as coping strategy against life stress and shocks. The paper concludes that; the households in the Mlalakuwa urban informal settlement, survives by combining various assets as a livelihood coping and recovery strategies based on their indigenous strategies and knowledge, so as to recover from daily life stress and shocks.  


Sign in / Sign up

Export Citation Format

Share Document