Name: SRK_Hazmat_Locations

Display Field: MUNICNAME

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This dataset represents a local‑municipality‑level hazardous materials (Hazmat) risk layer for KwaZulu‑Natal (KZN), South Africa. The layer was developed by integrating multiple spatial risk factors related to hazardous materials and waste, including land use, proximity to hospitals, and wastewater treatment works. A weighted spatial analysis was applied to generate a combined Hazmat risk surface, which was subsequently summarised and associated with local municipal boundaries. The dataset supports disaster risk assessment, planning, and decision‑making, particularly for emergency preparedness and hazardous materials management. Process Steps1. Weighted Hazard AnalysisA weighted sum analysis was performed using ArcGIS Pro Spatial Analyst to combine three reclassified raster layers representing Hazmat‑related risk factors:Reclassified land‑use risk layer (weight: 40%)Reclassified hospital proximity risk layer (weight: 25%)Reclassified wastewater treatment works (WWTW) risk layer (weight: 35%)Each input raster represented relative hazard intensity and was standardised prior to combination. The weighted sum operation produced a composite raster representing the cumulative hazardous materials risk score for each location. Hazard ClassificationHazard scores were classified on a relative ordinal scale, where higher values indicate greater potential hazardous materials risk. Municipalities with the highest scores represent areas with concentrated industrial activity, hazardous waste handling facilities, medical facilities, and associated infrastructure.

Service Item Id: d48febdc8dc54b569e7506f0c808798a

Copyright Text: Produced by SRK Consulting using ArcGIS Pro.

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 28.873479941000028
YMin: -31.082629940999936
XMax: 32.944984945000044
YMax: -26.804419936999977
Spatial Reference: 4148  (4148)

Drawing Info:

Renderer:
Unique Value Renderer:
Field 1: HAZMATLocationClass
Field 2: N/A
Field 3: N/A
Field Delimiter: ,
Default Symbol:
N/A
Default Label: N/A
UniqueValueInfos:
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Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false
Supports Percentile Statistics: true
Supports Having Clause: true
Supports Count Distinct: true
Supports Time Relation: true
Supports Sql Format: false
Supports Query Analytic: true
Supports Query With Current User: true

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• PROVINCE ( type: esriFieldTypeString, alias: PROVINCE, length: 50 )
• CAT_B ( type: esriFieldTypeString, alias: CAT_B, length: 150 )
• MUNICNAME ( type: esriFieldTypeString, alias: MUNICNAME, length: 100 )
• DISTRICT_N ( type: esriFieldTypeString, alias: DISTRICT_N, length: 100 )
• HAZMATLocationClass ( type: esriFieldTypeInteger, alias: HAZMATLocationClass )
• HazmatLoValue_RANGE ( type: esriFieldTypeString, alias: HazmatLoValue_RANGE, length: 255 )
• Shape ( type: esriFieldTypeGeometry, alias: Shape )
• Shape.STArea() ( type: esriFieldTypeDouble, alias: Shape.STArea() )
• Shape.STLength() ( type: esriFieldTypeDouble, alias: Shape.STLength() )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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