{
  "endpoint": "/ai/road-signs/signs/R400.json",
  "canonical_url": "https://www.safetysignonline.co.za/ai/road-signs/signs/R400.json",
  "source_page": "https://www.safetysignonline.co.za/pages/road-signs-r400-series-json",
  {
  "meta": {
    "endpoint": "/ai/road-signs/signs/R400-R499.json",
    "title": "R400 Series, Comprehensive Conditional Regulatory Signs, South Africa",
    "scope": "R400 series comprehensive signs (conditional regulatory signs) and directly-related temporary variants referenced in the SADC-RTSM volumes provided.",
    "jurisdiction": "South Africa (SADC-RTSM used as the governing reference set supplied)",
    "source_documents": [
      {
        "name": "SADC-RTSM Volume 1, Regulatory Signs (May 2012)",
        "local_file": "4f7773_9b8f22853587453988ccd12b5309015b.pdf",
        "relevant_sections": [
          "Chapter 2, Section 2.6 COMPREHENSIVE – Conditional Regulatory Signs",
          "Chapter 2, Introduction and Table 2.3 Conditional Signs Colour Code",
          "Chapter 2, Section 2.9 DE-RESTRICTION (context linkage for R401/R402/R403 termination)"
        ]
      },
      {
        "name": "SADC-RTSM Volume 4, Regulatory Signs, Chapters 2–3 (May 2012)",
        "local_file": "Road_Traffic_Signs_Manual_Vol_4_Chapter_2__3.pdf",
        "relevant_sections": [
          "2.6.1 R401 Dual Carriageway Freeway Begins (Class A1)",
          "2.6.2 R402 Single Carriageway Freeway Begins (Class A2) and TR402",
          "2.6.3 R403 Woonerf"
        ]
      }
    ],
    "last_compiled": "2025-12-18",
    "version": "1.0.0"
  },
  "series": {
    "series_code": "R400",
    "series_name": "COMPREHENSIVE",
    "classification": {
      "group": "Regulatory signs",
      "subgroup": "Conditional regulatory signs",
      "description": "Comprehensive signs indicate the comprehensive applicability of several regulatory restrictions on the basis of conditional use, other than control regulations."
    },
    "colour_code": {
      "permanent": {
        "border": "red retroreflective",
        "background": "blue retroreflective",
        "symbol_or_text": "white retroreflective",
        "notes": [
          "Black areas used on permanent regulatory signs are specified as semi-matt where applicable (general rule for permanent regulatory signs)."
        ]
      },
      "temporary": {
        "border": "red retroreflective",
        "background": "yellow retroreflective",
        "symbol_or_text": "black semi-matt",
        "notes": [
          "Temporary comprehensive signs are specified as fully retroreflective apart from black symbols or borders which are semi-matt (general rule for temporary regulatory signs)."
        ]
      }
    },
    "shape_family": {
      "primary_shape": "rectangular (comprehensive sign family)",
      "notes": [
        "The RTSM dimensional presentation describes rectangular regulatory sign layouts for reservation, comprehensive and de-restriction families."
      ]
    }
  },
  "signs": [
    {
      "sign_code": "R401",
      "name": "Dual Carriageway Freeway Begins",
      "class_designation": "Class A1 freeway",
      "type": "Comprehensive (conditional regulatory sign)",
      "colour_spec": {
        "permanent": {
          "border": "red retroreflective",
          "symbol_or_text": "white retroreflective",
          "background": "blue retroreflective"
        }
      },
      "legal_effect_summary": [
        "Display of R401 (or R402) designates a roadway as a freeway in terms of legislation (general statement applying to R401/R402)."
      ],
      "use_and_application": {
        "general_notes": [
          "For detailed sign use, the RTSM references Volume 1, pages covering the R401/R402 comprehensive section."
        ],
        "sizing": {
          "rule": "Size in accordance with Table 2.4 in Section 2.1 (Volume 1 reference for sizing guidance).",
          "dimensioning_reference": "RTSM Volume 4 provides dimensional tables and key letters for manufacture."
        }
      },
      "relationships": {
        "paired_with": [
          "R402 (Single Carriageway Freeway Begins)"
        ],
        "de_restriction_variants": [
          "R401-600 (end of the comprehensive regulation previously imposed by R401)",
          "TR401-600 (temporary end of R401 under specified roadworks/diversion circumstances)"
        ],
        "see_also": [
          "TR402 (temporary comprehensive sign used when a Class A1 freeway is operating with two-way traffic on one carriageway and the other is closed, to indicate downgraded status)"
        ]
      }
    },
    {
      "sign_code": "R402",
      "name": "Single Carriageway Freeway Begins",
      "class_designation": "Class A2 freeway",
      "type": "Comprehensive (conditional regulatory sign)",
      "colour_spec": {
        "permanent": {
          "border": "red retroreflective",
          "symbol_or_text": "white retroreflective",
          "background": "blue retroreflective"
        },
        "temporary_variant": {
          "sign_code": "TR402",
          "border": "red retroreflective",
          "symbol_or_text": "black semi-matt",
          "background": "yellow retroreflective"
        }
      },
      "legal_effect_summary": [
        "Display of R401 or R402 designates a roadway as a freeway in terms of legislation (general statement applying to R401/R402).",
        "For signing purposes, a single carriageway freeway is designated as a Class A2 road and a dual carriageway freeway as a Class A1 road."
      ],
      "use_and_application": {
        "placement_and_context": [
          "R402 should be displayed on the left-hand side of on-ramps to a single carriageway freeway.",
          "R402 should be displayed at the commencement of a Class A2 road when it is formed as a continuation of a lower class roadway, or of a Class A1 freeway."
        ],
        "advance_warning_option": [
          "R402 may be displayed with supplementary plate IN11.3 in advance of the start of the Class A2 freeway to indicate the distance to the start of the Class A2 freeway."
        ],
        "operational_notes": [
          "The comprehensive requirements listed for freeway status (referenced in RTSM Volume 1) may be varied during temporary roadworks. It is recommended that freeway status be retained under roadworks conditions to maintain necessary requirements, with other variations indicated by relevant additional temporary signs.",
          "TR402 is recommended for use when a Class A1 freeway is operating with two-way traffic on one carriageway and the other is closed to traffic, to indicate downgraded status."
        ],
        "sizing": {
          "rule": "R402 and TR402 should be sized in accordance with Table 2.4 in Section 2.1 (Volume 1 reference).",
          "dimensioning_reference": "RTSM Volume 4 provides dimensional tables and key letters for manufacture."
        }
      },
      "relationships": {
        "paired_with": [
          "R401 (Dual Carriageway Freeway Begins)"
        ],
        "de_restriction_variants": [
          "R402-600 (end of the comprehensive regulation previously imposed by R402)",
          "TR402-600 (temporary end of R402 in applicable temporary configurations)"
        ]
      }
    },
    {
      "sign_code": "R403",
      "name": "Woonerf",
      "type": "Comprehensive (conditional regulatory sign)",
      "colour_spec": {
        "permanent": {
          "border": "red retroreflective",
          "symbol_or_text": "white retroreflective",
          "background": "blue retroreflective"
        }
      },
      "meaning_and_requirements": {
        "summary": "Indicates comprehensive requirements that drivers shall comply with within an area declared for traffic control purposes as a woonerf.",
        "driver_requirements": [
          {
            "label_in_source": "a",
            "requirement": "Not enter the area driving a vehicle with a gross vehicle mass exceeding 3 500 kg and/or more than 10 seats for passengers, except for local access or delivery."
          },
          {
            "label_in_source": "b",
            "requirement": "Yield right of way to pedestrians, and children who may be in the roadway."
          },
          {
            "label_in_source": "c",
            "requirement": "Observe a general speed limit of 30 km/h within the area unless another speed limit is indicated by a road sign."
          },
          {
            "label_in_source": "c (as shown in source text)",
            "requirement": "Not enter the area by vehicle and drive through the area to exit at another point or the same point without breaking their journey."
          }
        ]
      },
      "use_and_application": {
        "placement": [
          "R403 should be displayed on the left side of all points of access to all residential areas declared for the purposes of traffic control as 'WOONERF'."
        ],
        "sizing": {
          "rule": "R403 should be sized in accordance with Table 2.4 in Section 2.1 (Volume 1 reference).",
          "dimensioning_reference": "RTSM Volume 4 provides dimensional tables and key letters for manufacture."
        }
      },
      "relationships": {
        "de_restriction_variants": [
          "R403-600 (end of 'WOONERF')"
        ]
      }
    }
  ],
  "ai_usage": {
    "intended_use": [
      "Fast factual extraction for assistants and agents",
      "Explainer outputs that need legally-relevant definitions and placement notes",
      "Shopify collection/page enrichment (linking series to your collections and explainer pages)"
    ],
    "recommended_linking": {
      "site_pages": [
        {
          "suggested_page": "/signs-explained/road-signs/r400/",
          "purpose": "Human-readable explainer page that can reference this endpoint for machine-readable facts."
        }
      ],
      "shopify_collections": [
        {
          "suggested_collection": "/collections/r400-series-comprehensive",
          "purpose": "If you create/standardise a collection for R400 family signs."
        }
      ]
    }
  }
}

}