View In:   ArcGIS Online Map Viewer

Name: SRK_Road_Transport_Hazards

Display Field: municname

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: a { text-decoration: none; color: #464feb; } tr th, tr td { border: 1px solid #e6e6e6; } tr th { background-color: #f5f5f5; }This dataset quantifies road‑accident hazard at the municipal level by integrating road‑network classifications, slope characteristics, and weather‑related risk conditions. Road types were weighted according to their potential contribution to accident risk, based on a 10‑to‑1 ranking system ranging from National Freeways (10) to Footpaths (1). These weights reflect relative exposure based on speed, traffic density, functional hierarchy, and complexity of movement.The weighted road network was intersected with municipal boundaries, and slope and weather modifiers were applied to adjust road‑accident risk scores where steep terrain and adverse climatic conditions are present. Final hazard values were computed using a length‑weighted summarisation of all road segments within each municipality.The resulting dataset provides a municipal‑scale hazard index highlighting areas where road characteristics, terrain, and weather conditions create increased accident likelihood. This layer supports provincial disaster management, emergency response planning, municipal safety profiling, infrastructure prioritisation, and transport‑risk mitigation.

Service Item Id: 38099d129afd40f3878bafe8375ff250

Copyright Text: SRK Consulting Creator: Herman Booysen (hbooysen@srk.co.za) Road Network and Hazard Analysis: SRK Consulting Supplementary Inputs: Digital Elevation Model (slope), weather‑related incident risk indicators

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Type ID Field:

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• province ( type: esriFieldTypeString, alias: PROVINCE, editable: true, nullable: true, length: 50, defaultValue: null, modelName: province )
• category ( type: esriFieldTypeString, alias: CATEGORY, editable: true, nullable: true, length: 5, defaultValue: null, modelName: category )
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• district_n ( type: esriFieldTypeString, alias: DISTRICT_N, editable: true, nullable: true, length: 100, defaultValue: null, modelName: district_n )
• value ( type: esriFieldTypeString, alias: VALUE, editable: true, nullable: true, length: 100, defaultValue: null, modelName: value )
• sum_accidenthazard ( type: esriFieldTypeDouble, alias: Sum AccidentHazard, editable: true, nullable: true, defaultValue: null, modelName: sum_accidenthazard )
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