{
  "endpoint": "/ai/road-signs/signs/R100.json",
  "canonical_url": "https://www.safetysignonline.co.za/ai/road-signs/signs/R100.json",
  "source_page": "https://www.safetysignonline.co.za/pages/road-signs-r100-series-json",
  {
  "schemaVersion": "sso-ai-road-signs-signs-r100-za-1.0",
  "endpoint": "/ai/road-signs/signs/R100.json",
  "language": "en-ZA",
  "jurisdiction": "South Africa (SADC-RTSM aligned)",
  "series": {
    "seriesId": "R100",
    "seriesName": "Command signs",
    "class": "Regulatory",
    "groupName": "COMMAND",
    "seriesPurpose": "R100 series signs impose mandatory command restrictions other than control regulations. They instruct road users on actions that must be carried out."
  },

  "authoritativeBasis": {
    "primarySources": [
      {
        "title": "SADC Road Traffic Signs Manual (RTSM) Volume 1 – Regulatory Signs",
        "scopeUsed": [
          "Definition of command signs",
          "Regulatory sign grouping and series framework",
          "Colour coding principles for mandatory regulatory signs",
          "Rules governing permanent versus temporary regulatory signs"
        ]
      },
      {
        "title": "SADC Road Traffic Signs Manual (RTSM) Volume 4 – Regulatory sign plates (Chapter 2/3 extracts)",
        "scopeUsed": [
          "Sign plate identifiers and layout references where textually extractable",
          "Series confirmation for R100 command signs"
        ]
      }
    ],
    "performanceStandards": {
      "included": false,
      "note": "SANS 1519 performance and retroreflective class requirements are intentionally excluded at this stage and will be added in a later revision."
    }
  },

  "designRules": {
    "shape": "Circular",
    "mandatoryColourSystem": {
      "permanent": {
        "background": "Blue",
        "symbol": "White",
        "border": "White",
        "finish": {
          "retroreflective": "Recommended for day and night significance",
          "blackAreas": "Semi-matt where applicable"
        }
      },
      "temporary": {
        "background": "Yellow",
        "symbol": "Black",
        "border": "White",
        "finish": {
          "retroreflective": "Required except for black areas",
          "blackAreas": "Semi-matt"
        }
      }
    },
    "generalNotes": [
      "Command signs convey mandatory actions.",
      "Failure to comply constitutes a regulatory offence."
    ]
  },

  "applicationRules": {
    "whenUsed": [
      "To instruct drivers or other road users to perform a specific action",
      "Where a mandatory movement or behaviour is required"
    ],
    "notUsedFor": [
      "Priority control (handled under R1–R6)",
      "Prohibition of actions (handled under R200)",
      "Conditional reservation (handled under R300)"
    ],
    "temporaryUsage": {
      "principle": "Temporary R100 signs may be used where the mandatory command applies for a limited duration, such as at roadworks.",
      "colourOverride": "Temporary colour system applies where temporary application is intended."
    }
  },

  "combinationRules": {
    "secondaryMessages": {
      "allowed": true,
      "secondarySeries": "R500",
      "rules": [
        "R500 signs shall not be used on their own",
        "Primary R100 sign and secondary R500 sign must use the same colour code",
        "Secondary sign modifies applicability only, not the core command"
      ]
    },
    "deRestriction": {
      "applicable": true,
      "method": "De-restriction is achieved by superimposing an R600 red cross on the original R100 sign.",
      "exceptions": [
        "Speed limits are not de-restricted using R600; a new speed limit sign must be displayed instead."
      ]
    }
  },

  "signIndex": {
    "note": "Only sign codes explicitly identifiable in extractable text are listed here. Image-only plates are deferred until visual extraction is completed.",
    "entries": [
      {
        "code": "R103",
        "name": "KEEP LEFT",
        "status": "text-confirmed",
        "meaning": "Instructs drivers to pass to the left of the obstruction or median.",
        "commonApplications": [
          "Traffic islands",
          "Median noses",
          "Channelisation features"
        ],
        "notes": [
          "Referenced in RTSM text in relation to traffic bollards."
        ]
      },
      {
        "code": "R132",
        "name": "PAY TOLL",
        "status": "text-confirmed",
        "meaning": "Instructs road users that payment of a toll is mandatory.",
        "commonApplications": [
          "Toll plazas",
          "Toll collection points"
        ],
        "notes": [
          "RTSM references R132 and indicates dimensional tables apply."
        ]
      }
    ]
  },

  "knownSeriesCharacteristics": {
    "symbolicNature": "R100 signs rely primarily on symbolic representation rather than text.",
    "languageIndependence": "Symbols are designed to be understood without reliance on language.",
    "visibilityRequirement": "Must be clearly visible and recognisable at decision points."
  },

  "links": {
    "parentIndex": "/ai/road-signs.json",
    "seriesCatalogue": "/ai/road-signs/r-series.json",
    "relatedSeries": [
      "/ai/road-signs/signs/R1-R6.json",
      "/ai/road-signs/signs/R200.json",
      "/ai/road-signs/signs/R300.json",
      "/ai/road-signs/signs/R500.json",
      "/ai/road-signs/signs/R600.json"
    ]
  },

  "dataQuality": {
    "method": "Only information explicitly stated or unambiguously implied by the supplied RTSM documents is included.",
    "limitations": [
      "Full enumeration of all R100 sign codes is limited by image-only plates in the supplied PDFs.",
      "Exact dimensional tables and pictogram drawings are deferred to future deep extraction."
    ],
    "plannedEnhancements": [
      "Add full R100 sign list once Vol 4 plates are visually extracted.",
      "Add SANS 1519 performance classes in a later revision."
    ]
  },

  "disclaimer": "This file provides an authoritative, machine-readable description of the R100 Command sign series based on supplied RTSM documents. Always follow the latest official RTSM manuals and road authority approvals for implementation."
}

}