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DEFINING THE MORPHOLOGICAL COMPONENTS:THE URBAN STRUCTURE ELEMENTSAs outlined above, the urban morphology of the urban environment is an agglomerationand overlay of various systems. They encompass the natural environment/ terrain, movementsystems, service infrastructure systems, socio-economic activities, urban form, public space,and institutional/ urban management. The urban morphological approach recognises theseas integrated components. These combine in a 'mix/ compression' to form an urbanmorphological pattern, which in turn can be described in terms of urban structure elements(Figure A.2.2).The practice of urban morphology (i.e. the study of urban form for descriptive and explanatorypurposes, for the development of city development/ design theories and their impact onurban development) assists in identifying typical patterns and/or elements of urban structurethat characterise the urban system. Given the spatial and physical complexity of the urbansystem, a series of morphological urban structure elements have been identified, whichoccur at different urban scales within the urban system.The urban scale of the urban structure elements encompasses the following range:• Local and/or Precinct;• Neighbourhood and/or Suburb;• Town (District);• Metropolitan (City); and• RegionANNEXURE A: THE 5 GIS-BASED MODELSFigure A.2.2: Understanding the urban system in terms of morphological elements.The following morphological elements typically characterise the urban system (Figure A.2.3):• Urban Consolidation Zones;• The Urban Corridor (regional and metropolitan scale);• Nodes, with a hierarchy from regional, to primary, secondary, tertiary and local;• Specialist nodes serving a specific function and more mono-use, for example aregional sporting or national exhibitions complex such as Nasrec;83 GAUTENG SPATIAL DEVELOPMENT FRAMEWORK 2011 GAUTENG GROWTH AND DEVELOPMENT AGENCY
Figure A.2.3: The urban structure elements combine the urban systems/ networks.DistrictFullNatural SystemComponentUrban Void Partial ComponentHigh StreetActivity Spine- Main RoadActivity Spine- Urban ArterialActivity Spine- Major ArterialLocal Node/ Point (precinct)Tertiary Node (suburban)Secondary Node (town)Primary Node (metropolitan)Regional Node (historic origin)Urban CorridorUrban Consolidation ZoneUrban Morphological TypesUrban Morphological TypesUrban Consolidation ZoneUrban CorridorRegional Node (historic origin)Primary Node (metropolitan)Secondary Node (town)Tertiary Node (suburban)Local Node/ Point (precinct)Activity Spine- Major ArterialActivity Spine- Urban ArterialActivity Spine- Main RoadHigh StreetDistrictNatural SystemUrban VoidUrban ScaleRegionalMetropolitan (city)District (town)Suburb (neighbourhood)Local (precinct)ANNEXURE A: THE 5 GIS-BASED MODELSGAUTENG SPATIAL DEVELOPMENT FRAMEWORK 2011GAUTENG GROWTH AND DEVELOPMENT AGENCY84
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THE GAUTENG SPATIAL DEVELOPMENT FRA
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TABLE OF CONTENTSSECTION 1: INTRODU
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Table A.2-iv: Summary - Typical per
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FIGURESSECTION 1: INTRODUCTIONFigur
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Figure A.2.4: Modelling key compone
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FOREWORD
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SECTION1:Introduction
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development framework around which
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SECTION 1: INTRODUCTIONcadastral in
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Not only does it seem necessary to
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SECTION 2: THE GSDF AS A CONCEPTA S
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disasters, shortages and changes in
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are to promote sustainability, equi
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It is legislated that metropolitan
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Similarly, there must be a consiste
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The corridors reflected in the figu
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Similarly, in the United Kingdom, i
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• urban compactness, also noted i
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With Johannesburg as the city syste
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Making sense of, and integrating, t
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Based on this figure, it is suggest
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On this basis, there is no reason w
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Page 50 and 51: SECTION3:The modelling elements of
Page 52 and 53: value that goes with this can be de
Page 54 and 55: THE MODELLING THAT UNDERPINS THE GS
Page 56 and 57: MODEL 2: THE MORPHOLOGICAL MODELaro
Page 58 and 59: with lower levels of accessibility.
Page 60 and 61: MODEL 5: THE VIRTUAL MODEL ROOMSECT
Page 62 and 63: URBAN MANAGEMENT AND SPATIAL DEVELO
Page 64 and 65: making processes around these (for
Page 66 and 67: The intricacies of the urban struct
Page 68 and 69: SECTION 4: OUTCOMES OF APPLICATION:
Page 70 and 71: STEP SIX: URBAN DEVELOPMENT, MANAGE
Page 72 and 73: THE COMPOSITE SPATIAL STRUCTUREThe
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Page 76 and 77: FRAMEWORK FOR THE IMPLEMENTATION OF
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Page 80 and 81: TRANSPORTATIONThe principles of urb
Page 82 and 83: URBAN STRUCTURING INITIATIVESSECTIO
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Page 86 and 87: It is not enough, however, to simpl
Page 88 and 89: APPENDIXA.1: The urban profile mode
Page 90 and 91: ANNEXURE A: THE 5 GIS-BASED MODELSF
Page 92 and 93: THE IDENTIFICATION OF MORPHOLOGICAL
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Page 98 and 99: • Activity Spines, with a hierarc
Page 100 and 101: ANNEXURE A: THE 5 GIS-BASED MODELSN
Page 102 and 103: comprises specialised trade, such a
Page 104 and 105: • Development Intensity: Land are
Page 106 and 107: THE REGIONAL NODEDevelopment Yield:
Page 108 and 109: THE TYPICAL PERFORMANCE DIMENSION O
Page 110 and 111: TYPICAL DEVELOPMENT PARAMETERS: URB
Page 116 and 117: Figures A.2.13-15 show the same are
Page 120 and 121: THE CONNECTIVITY MODELANNEXURE A: T
Page 122 and 123: CONNECTIVITY MODEL 2This iteration
Page 124 and 125: CONNECTIVITY MODEL 4The fourth iter
Page 126 and 127: CONNECTIVITY MODEL 6The final itera
Page 128 and 129: THE BID-RENT MODELThe Bid-Rent Mode
Page 130 and 131: TOPOGRAPHIC SUITABILITYThe Topograp
Page 132 and 133: THE SPATIAL POLICY SUPPORT INDEXThe
Page 134 and 135: SURFACE CONSTRAINTSThe Surface Cons
Page 136 and 137: APPENDIXA.5Model 5 - the virtualmod
Page 138 and 139: TSHWANE STATIONS123Existing conditi
Page 140 and 141: APPENDIXB.1: Restrictingurban spraw
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Page 144 and 145: ANNEXURE B: POLICY POSITION PAPERSF
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APPENDIXB.2: A densification policy
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The model that is to guide both res
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APPENDIXB.3: Harmonisinghousingprov
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housing and mixed-uses can be reali
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ANNEXURE B: POLICY POSITION PAPERSF
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ANNEXURE B: POLICY POSITION PAPERSF
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THE PRINCIPLES GOVERNING THE TRANSP
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ANNEXURE B: POLICY POSITION PAPERSi
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Possible outer extentsof urban deve
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APPENDIXB.5: Thecase principles ofs
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sustainable and efficient. A long-t
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ANNEXURE B: POLICY POSITION PAPERSB
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APPENDIXC.1: Thefreight and logisti
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overall platform on which more focu
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A further south-eastern regional hu
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ANNEXURE C: POLICY PERSPECTIVESFigu
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APPENDIXC.2: A perspective guidingt
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anges of hills or mountains, whethe
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APPENDIXC.3: Preservationof landhav
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URBAN CONSOLIDATION ZONESThe physic
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APPENDIXC.5: Indicativepatterns ofe
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APPENDIXC.6: Integrationof the rura
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opportunity that goes with being ab
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ANNEXURED: The package of plans
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In order to achieve spatial integri
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LEVEL ESSENTIAL FOCUS AND SCOPE SCA
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LEVEL ESSENTIAL FOCUS AND SCOPE SCA
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ANNEXUREE: Glossary of terms
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Brownfield Land and SitesPreviously
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ANNEXURE E: GLOSSARY OF TERMSTown -
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Development ManagementThe process w
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Geographic Spread Programme (DTI)Th
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ANNEXURE E: GLOSSARY OF TERMSIntegr
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ANNEXURE E: GLOSSARY OF TERMSSpatia
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ANNEXURE E: GLOSSARY OF TERMSUrban
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ANNEXURE E: GLOSSARY OF TERMS• Ur
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