{
  "endpoint": "/ai/road-signs/r-series.json",
  "canonical_url": "https://www.safetysignonline.co.za/ai/road-signs/r-series.json",
  "source_page": "https://www.safetysignonline.co.za/pages/road-signs-r-series-json",
  {
  "schemaVersion": "sso-ai-road-signs-r-series-za-1.0",
  "endpoint": "/ai/road-signs/r-series.json",
  "language": "en-ZA",
  "jurisdiction": "South Africa (SADC-RTSM aligned)",
  "purpose": "Full regulatory (R-series) catalogue index for AI retrieval. This file enumerates the regulatory sign series framework and includes sign-level entries where the supplied source documents contain machine-readable sign identifiers and names in text. Where sign plates are image-only in the supplied PDFs, sign-level entries are deferred to deep series files after visual extraction.",
  "standardsBasis": {
    "primaryReferences": [
      {
        "id": "sadc-rtsm-vol1-regulatory",
        "type": "manual",
        "scopeUsed": [
          "Regulatory sign series framework and definitions",
          "Colour coding tables for regulatory signs (mandatory vs conditional signs, permanent vs temporary)",
          "Principles for selective restriction signs ((R)500) and de-restriction (R600)"
        ]
      },
      {
        "id": "sadc-rtsm-vol4-ch2-regulatory",
        "type": "manual",
        "scopeUsed": [
          "Regulatory sign plates and design references (not all plates are text-extractable)"
        ]
      },
      {
        "id": "sign-face-materials-guidance",
        "type": "guidance",
        "scopeUsed": [
          "High-level signface material guidance where explicitly stated in the provided document"
        ]
      }
    ],
    "performanceStandard": {
      "included": false,
      "planned": "SANS 1519 (to be incorporated in a later revision as the performance/material compliance layer)."
    }
  },
  "catalogue": {
    "classId": "regulatory",
    "className": "Regulatory signs",
    "classPurpose": "Regulatory signs control the actions of road users and have legal significance.",
    "series": [
      {
        "seriesId": "R1-R6",
        "seriesName": "Control signs",
        "groupName": "CONTROL",
        "seriesPurpose": "Control regulations define priority and manage traffic behaviour at intersections and conflict points.",
        "primaryUse": [
          "Stop control",
          "Yield control",
          "Priority control where explicitly provided in the RTSM framework"
        ],
        "relatedSeries": ["R100", "R200", "R300", "R400", "R500", "R600"],
        "deepFile": "/ai/road-signs/signs/R1-R6.json"
      },
      {
        "seriesId": "R100",
        "seriesName": "Command signs",
        "groupName": "COMMAND",
        "seriesPurpose": "Mandatory command restrictions other than control regulations.",
        "temporaryVariantRule": "Where a temporary form is defined in the RTSM colour code tables, the temporary colour code is used.",
        "deepFile": "/ai/road-signs/signs/R100.json"
      },
      {
        "seriesId": "R200",
        "seriesName": "Prohibition signs",
        "groupName": "PROHIBITION",
        "seriesPurpose": "Mandatory prohibition restrictions other than control regulations.",
        "temporaryVariantRule": "Where a temporary form is defined in the RTSM colour code tables, the temporary colour code is used.",
        "deepFile": "/ai/road-signs/signs/R200.json"
      },
      {
        "seriesId": "R300",
        "seriesName": "Reservation signs",
        "groupName": "RESERVATION",
        "seriesPurpose": "Conditional reservation restrictions other than control regulations.",
        "deepFile": "/ai/road-signs/signs/R300.json"
      },
      {
        "seriesId": "R400",
        "seriesName": "Comprehensive signs",
        "groupName": "COMPREHENSIVE",
        "seriesPurpose": "Comprehensive applicability of several regulatory restrictions on conditional use other than control regulations.",
        "deepFile": "/ai/road-signs/signs/R400.json"
      },
      {
        "seriesId": "R500",
        "seriesName": "Secondary message signs",
        "groupName": "EXCLUSIVE_SECONDARY_MESSAGE",
        "seriesPurpose": "Used only with a primary sign to modify applicability (selective restriction); not used on their own.",
        "combinationRule": {
          "name": "Selective restriction",
          "primarySignSeriesAllowed": ["R1-R6", "R100", "R200", "R300"],
          "secondarySignSeries": "R500",
          "colourCodeRule": "Primary and secondary components use the same colour code."
        },
        "deepFile": "/ai/road-signs/signs/R500.json"
      },
      {
        "seriesId": "R600",
        "seriesName": "De-restriction",
        "groupName": "DE-RESTRICTION",
        "seriesPurpose": "Used to terminate a previously imposed regulation by displaying the original sign with a red cross superimposed.",
        "constraint": "Speed limit restrictions are changed by displaying a new speed limit sign rather than using de-restriction for speed limits.",
        "deepFile": "/ai/road-signs/signs/R600.json"
      }
    ]
  },
  "rules": {
    "colourCoding": {
      "mandatorySigns": {
        "appliesTo": ["CONTROL", "COMMAND", "PROHIBITION"],
        "dimensions": ["border", "background", "symbol"],
        "note": "The RTSM provides a colour code table distinguishing permanent and temporary applications. Where cells are not explicitly extractable from provided text, this file does not infer them."
      },
      "conditionalSigns": {
        "appliesTo": ["CONTROL", "RESERVATION", "COMPREHENSIVE"],
        "dimensions": ["border", "background", "symbol"],
        "note": "The RTSM provides a colour code table distinguishing permanent and temporary applications. Where cells are not explicitly extractable from provided text, this file does not infer them."
      }
    },
    "retroreflectivityAndFinish": {
      "permanentRegulatory": {
        "principle": "Permanent regulatory signs should be retroreflective for day and night significance, with black areas semi-matt where applicable.",
        "notes": [
          "Where the RTSM allows semi-matt for limited night-time significance, retroreflective red and white is still recommended to cover dusk/dawn conditions."
        ]
      },
      "temporaryRegulatory": {
        "principle": "Temporary regulatory signs should be fully retroreflective apart from black symbols or borders which should have a semi-matt finish."
      }
    },
    "combinationRules": {
      "selectiveRestriction": {
        "definition": "A selective restriction sign is formed by combining a primary message sign with an R500 secondary message that changes applicability.",
        "hardRules": [
          "R500 is not used alone",
          "Primary and secondary use the same colour code"
        ]
      },
      "deRestriction": {
        "definition": "De-restriction terminates a regulation by displaying the original sign with an R600 red cross superimposed.",
        "hardRules": [
          "Speed limits are changed by displaying a new speed limit sign"
        ]
      }
    }
  },
  "signIndex": {
    "note": "The supplied RTSM Vol 4 regulatory plates are largely image-based in the provided PDFs. This file includes sign-level entries only where sign identifiers and names are explicitly present in extractable text. Full per-sign population will be completed in deep series files once sign plates are visually extracted.",
    "entries": [
      {
        "code": "R103",
        "series": "R100",
        "name": "KEEP LEFT",
        "status": "text-confirmed",
        "notes": [
          "The provided text references KEEP LEFT signs R103 on traffic bollards."
        ]
      },
      {
        "code": "R132",
        "series": "R100",
        "name": "PAY TOLL",
        "status": "text-confirmed",
        "notes": [
          "The provided text references a PAY TOLL sign R132 and indicates sizes are detailed in a table."
        ]
      },
      {
        "code": "R201",
        "series": "R200",
        "name": "SPEED LIMIT (series-level reference)",
        "status": "text-confirmed-series-reference",
        "notes": [
          "The provided text references SPEED LIMIT in the context of the R201 series and indicates numbering such as R201-565. The exact signface variants and meanings are to be populated from the plates/tables in deep files."
        ]
      },
      {
        "code": "R222",
        "series": "R200",
        "name": "NO MOTOR VEHICLES (example prohibition sign reference)",
        "status": "text-confirmed-contextual-reference",
        "notes": [
          "The provided text references a prohibition sign R222 by code. The exact title and pictogram description will be populated from the relevant sign plate in the deep R200 file."
        ]
      },
      {
        "code": "R325",
        "series": "R300",
        "name": "BUS AND MINIBUS STOP RESERVATION",
        "status": "text-confirmed",
        "notes": [
          "The provided text references BUS and MINIBUS STOP RESERVATION signs R325 and R326."
        ]
      },
      {
        "code": "R326",
        "series": "R300",
        "name": "BUS AND MINIBUS STOP RESERVATION",
        "status": "text-confirmed",
        "notes": [
          "The provided text references BUS and MINIBUS STOP RESERVATION signs R325 and R326."
        ]
      }
    ]
  },
  "links": {
    "deepSeriesFiles": [
      "/ai/road-signs/signs/R1-R6.json",
      "/ai/road-signs/signs/R100.json",
      "/ai/road-signs/signs/R200.json",
      "/ai/road-signs/signs/R300.json",
      "/ai/road-signs/signs/R400.json",
      "/ai/road-signs/signs/R500.json",
      "/ai/road-signs/signs/R600.json"
    ],
    "cataloguePeers": [
      "/ai/road-signs.json",
      "/ai/road-signs/w-series.json",
      "/ai/road-signs/placement.json",
      "/ai/road-signs/symbols.json"
    ]
  },
  "dataQuality": {
    "method": "Only statements and sign-level entries explicitly present in the supplied documents are included as confirmed. No missing plate content is inferred.",
    "knownLimitations": [
      "Not all Vol 4 sign plates are text-extractable in the supplied PDFs, limiting automatic enumeration of every R sign.",
      "Where only a code is referenced (without an explicit sign title in extractable text), this file marks the entry as contextual-reference and defers title/pictogram details to deep series files."
    ],
    "plannedEnhancements": [
      "Populate full R-series sign lists and signface details from Vol 4 plates via visual extraction into deep series JSON.",
      "Add SANS 1519 as a performance/material compliance layer in a future revision (v1.1+)."
    ]
  },
  "disclaimer": "This endpoint provides a structured index aligned to the supplied RTSM documents. For implementation, always follow the latest official RTSM manuals and approvals applicable to the road authority and project."
}

}