Development of a multi-criteria assessment tool to choose between housing systems for the low cost housing market

Theart, Petrus Johannes (2014-12)

Thesis (MEng)--Stellenbosch University, 2014.

Thesis

ENGLISH ABSTRACT: It is well known that South Africa has a major housing backlog and that the population is growing every year. Consequently, more people are left homeless, without the finances to acquire a minimum standard house. The official backlog in 2012 was defined as 2.1 million units, of which 1.1 million households lived in informal settlements in South Africa. The purpose of this study is to develop a multi-criteria assessment tool that will help a developer to choose between housing systems that can be used in low cost housing developments. Essentially, the tool will aid a developer to allocate funding more appropriately and effectively to develop sustainable communities. The research followed a procedure of identifying challenges experienced in the low cost housing industry, identifying the important factors to consider when assessing low cost housing systems and finally selecting a multi-criteria decision-making model to select a system. The important factors that need to be considered for this study were gathered from literature and industry experience through using the interviewing technique for data collection. The factors identified will be assessed using the multi-criteria decision-making model, called the Evidential Reasoning Approach. This study focuses on housing systems as a whole. Specific attention is given to walling systems, but not to other elements such as the foundations and roofs. The primary factors identified are cost, time, quality, environmental performance, density, alteration capability, resource availability and additional features. These factors were then used to develop a userfriendly assessment tool for choosing between housing systems for the low cost housing market. In conclusion this assessment tool will be available to public and private role players who intend to develop a low cost housing settlement. However, this assessment tool has some imperfections. These are discussed at the end of this study and show how they influence this model.

AFRIKAANSE OPSOMMING: Dit is algemeen bekend dat Suid-Afrika „n groot behuisings agterstand het en dat die bevolking jaarlikse groei. Die amptelike behuisings agterstand in 2012 was gedefinieer as 2.1 miljoen eenhede, waarvan meer as 1.1 miljoen van hierdie huishoudings in informele nedersettings in Suid-Afrika geleë is. Die doel van hierdie studie is dus om „n mulit-kriteria assesserings instrument te ontwikkel wat „n ontwikkelaar sal help om tussen behuisings sisteme te kies, wat vir lae koste behuising ontwikkelings gebruik kan word. Gevolglik , sal hierdie instrument „n ontwikkelaar help om befondsing meer toepaslik toe te ken en om doeltreffende en volhoubare gemeenskappe te ontwikkel. Die navorsings prosedure het begin deur uidagings in die lae koste behuising bedryf te identifiseer, asook die belangrike faktore wat oorweeg moet word as behuisings stelsels beoordeel moet word. „n Multi-kriteria besluitnemings model is gekies wat toepaslik is op hierdie studie. Die belangrike faktore wat in ag geneem moet word, is geïdentifiseer deur literatuur, en industrie ondervinding, deur gebruik te maak van onderhoude om data in te samel. Die kriteria wat geïdentifiseer is sal beoordeel word met behulp van die multi-kriteria besluitnemings model, naamlik Evidential Reasoning Approach. Die kriteria wat gebuik is in hierdie studie het gefokus op die behuisings stelsel as ʼn geheel. Alhoewel spesifieke aandag gegee is aan die mure van die stelsels was ander elemente, soos die dakke en fondamente nie bespreek nie. Die primêre faktore wat geïdentifiseer is, is koste, tyd, kwaliteit, omgewings werkverrigting, digtheid, aanbouings vermoë, beskikbaarheid van hulpbronne en bykomende funksies. Hierdie faktore word gebruik om „n keuse te maak tussen behuisings stelsels vir die gebruik vin die lae koste behuising mark. Die faktore word voorgestel as „n gebruikers vriendelike assesserings instrument. Ten slotte behoort hierdie assesserings intrument beskikbaar te wees aan oopenbare en private belangstellendes wat beoog om „n lae kost behuising nedersetting te ontwikkel. Hierdie assesserings instrument het wel „n paar tekortkomming, wat aan die enide van die studie bespreek word, asook hoe hierdie terkortkomming die model kan beïnvloed.

Please refer to this item in SUNScholar by using the following persistent URL: http://hdl.handle.net/10019.1/95844
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