Thesis (DPhil)--Stellenbosch University, 2012. / ENGLISH ABSTRACT: In this dissertation I enquire into the status, scope and limits of human knowledge, given the fact that our perceptual and cognitive faculties are the product of evolution by natural selection. I argue that the commonsense representations these faculties provide us with yield a particular, species-specific scope on the world that does not ‘correspond’ in any straightforward way to the external world. We are, however, not bound by these commonsense representations. This particular, species-specific view of the world can be transgressed. Nevertheless, our transgressing representations remain confined to the conceptual space defined by the combinatorial possibilities of the various representational tools we possess. Furthermore, the way in which we fit representations to the external world is by means of our biologically determined epistemic orientation. Based on the fact that we are endowed with a particular set of perceptual and cognitive resources and are guided by a particular epistemic orientation, I conclude that we have a particular cognitive relation to the world. Therefore, an accurate representation for us is a particular fit (our epistemic orientation) with particular means (our perceptual and cognitive resources). / AFRIKAANSE OPSOMMING: Hierdie tesis handel oor die aard, omvang en limiete van kennis, gegewe dat ons perseptuele en kognitiewe vermoëns die resultaat van evolusie deur middel van natuurlike seleksie is. Eerstens, word daar geargumenteer dat die algemene voorstellings wat hierdie vermoëns aan ons bied ‘n partikuliere, spesie-spesifieke siening van die wêreld aan ons gee, wat nie op ‘n eenvoudige manier korrespondeer aan die werklikheid nie. Ons is egter nie gebonde aan hierdie voorstellings nie. Hierdie partikuliere, spesie-spesifieke siening van die wêreld kan oorskry word. Ons is egter wel beperk tot die konseptuele ruimte wat gedefinieër word deur die kombinatoriese moontlikhede van die voorstellingsmiddele tot ons beskikking. Verder word die manier waarop ons hierdie voorstellings aan die wêreld laat pas deur ons biologies gedetermineerde epistemiese oriëntasie bepaal. Dus, gegewe dat ons ‘n spesifieke stel perseptuele en kognitiewe vermoëns het en deur ‘n spesifieke kognitiewe epistemiese oriëntasie gelei word, staan ons in ‘n spesifieke kognitiewe verhouding tot die wêreld. ‘n Akkurate voorstelling (m.a.w. kennis vir ons) is om spesifieke vermoëns (perseptuele en kognitiewe vermoëns) op ‘n spesifieke manier (epsitemiese oriëntasie) aan die wêreld te laat pas.

With this dissertation, it is intended to improve our understanding of the effects of urban rail systems on the mobility of women, their accessibility and their extent of experiencing the city they live in, that is their urban geography. The main aim is to understand whether women who live nearby an urban rail system and who use this system have higher levels of mobility and wider urban geography when compared with those who live in places without an urban rail access and those who do not use urban rail systems. In search for the effects of metro usage on mobility, as well as the factors affecting metro usage, the study is built on four main fields in transportation studies: mode choice theory, activity based travel theory, time-geography theory and women studies. Women living on Ankara metro line and in Ke&ccedil / i&ouml / ren constitute the main case study in this thesis. With the help of a comprehensive questionnaire, applied on captive public transport women riders, it is assessed whether the Ankara metro has positive effects on the mobility of women living nearby the metro stations, whether women who use the metro have higher mobility and wider urban geography, and whether the metro can be effective in enhancing the mobility and urban geography of women who are identified as particularly vulnerable in the literature. Understanding the factors, in cases where expected positive impacts on mobility have not been realized, is also important to contribute to the theoretical discussions that the study is built on.