{ "endpoint": "/ai/road-signs/signs/W200.json", "canonical_url": "https://www.safetysignonline.co.za/ai/road-signs/signs/W200.json", "source_page": "https://www.safetysignonline.co.za/pages/road-signs-w200-series-json", { "schemaVersion": "sso-ai-road-signs-signs-w200-za-1.0", "endpoint": "/ai/road-signs/signs/W200.json", "language": "en-ZA", "jurisdiction": "South Africa (SADC-RTSM aligned)", "series": { "seriesId": "W200", "seriesName": "Direction of movement warning signs", "class": "Warning", "groupName": "DIRECTION OF MOVEMENT", "seriesPurpose": "W200 series signs warn road users of changes in direction of travel or required path alignment through a hazard area, without imposing a regulatory command." }, "authoritativeBasis": { "primarySources": [ { "title": "SADC Road Traffic Signs Manual (RTSM) Volume 1 – Warning Signs", "scopeUsed": [ "Definition and purpose of direction-of-movement warning signs", "Colour and shape rules for warning signs", "Use of chevrons and alignment indicators as warning devices" ] }, { "title": "SADC Road Traffic Signs Manual (RTSM) Volume 4 – Warning sign plates", "scopeUsed": [ "W200 series identification", "Chevron and alignment plate references (image-based in Vol 4)" ] } ], "performanceStandards": { "included": false, "note": "Material performance and retroreflective class requirements (e.g. SANS 1519) are excluded at this stage." } }, "designRules": { "shape": { "primary": "Rectangular", "secondary": "Chevron-based panel formats where applicable" }, "mandatoryColourSystem": { "permanent": { "background": "White", "symbol": "Black", "border": "Red", "finish": { "retroreflective": "Recommended for night-time visibility", "blackAreas": "Semi-matt where applicable" } }, "temporary": { "background": "Yellow", "symbol": "Black", "border": "Red", "finish": { "retroreflective": "Required except for black areas", "blackAreas": "Semi-matt" } } }, "generalNotes": [ "W200 signs visually guide the direction of travel through curves, bends, or deflected alignments.", "They do not impose a legal obligation but indicate the safest path through a hazard." ] }, "applicationRules": { "whenUsed": [ "To guide drivers through sharp curves or bends", "To emphasise the direction of alignment where the roadway deviates significantly", "To supplement W100 road layout warnings where additional guidance is needed" ], "notUsedFor": [ "Mandatory direction instructions (R100)", "Lane allocation or reservation (R300)", "Priority control" ], "placementPrinciples": { "general": "W200 signs are placed at or immediately before the point where directional guidance is required.", "repetition": "Multiple W200 signs may be used in sequence to reinforce alignment through extended curves.", "referenceNote": "Exact spacing and repetition intervals are defined in RTSM diagrams and tables and are not numerically listed here." } }, "combinationRules": { "withWarningSigns": { "allowed": true, "commonPairings": [ "W100 curve or bend warnings", "W100 alignment change warnings" ] }, "withSupplementaryPlates": { "allowed": true, "series": "W400", "functions": [ "Distance to start of alignment change", "Length of curve or deflected section" ] } }, "signIndex": { "note": "W200 sign variants are predominantly defined in plate form. Only functional groupings are listed here.", "categories": [ { "categoryId": "chevron_alignment", "description": "Chevron-style panels indicating the direction of a curve or deflection.", "examples": [ "Chevron left", "Chevron right", "Multiple chevrons along a curve" ] }, { "categoryId": "directional_arrow_warning", "description": "Arrow-based warning symbols indicating required path alignment through a hazard.", "examples": [ "Sharp bend alignment arrow", "Deflected alignment arrow" ] } ] }, "knownSeriesCharacteristics": { "guidanceFunction": "Provides continuous visual guidance rather than a single advance warning.", "highConspicuityUse": "Frequently used on sharp curves, freeway ramps, and mountainous routes.", "symbolicCommunication": "Relies on arrows and chevrons rather than text." }, "links": { "parentIndex": "/ai/road-signs.json", "seriesCatalogue": "/ai/road-signs/w-series.json", "relatedSeries": [ "/ai/road-signs/signs/W100.json", "/ai/road-signs/signs/W300.json", "/ai/road-signs/placement.json", "/ai/road-signs/symbols.json" ] }, "dataQuality": { "method": "Information is derived strictly from RTSM definitions and functional descriptions of direction-of-movement warning signs.", "limitations": [ "Individual W200 sign codes (e.g. W201–W2xx) are not exhaustively listed due to image-based plate definitions.", "Exact panel dimensions, angles, and spacing require Vol 4 plate extraction." ], "plannedEnhancements": [ "Populate full W200 sign code list after plate extraction.", "Add SANS 1519 material and performance requirements in a later revision." ] }, "disclaimer": "This file provides a structured description of the W200 Direction of Movement Warning sign series based on supplied RTSM documents. Always consult the latest official RTSM manuals and road authority approvals before implementation." } }