{
  "title": "Concrete Traffic Barrier",
  "description": "A precast jersey barrier on the published New Jersey section: a vertical toe, a shallow face a tyre climbs, a steep face it cannot roll over, drainage openings cut through the base by a second section, and a dowel pocket cast into the top at each end so an abutted run keys together.",
  "category": "Street",
  "tags": [
    "contemporary",
    "street",
    "traffic",
    "procedural"
  ],
  "controls": {
    "height": {
      "type": "number",
      "label": "Height",
      "min": 0.5,
      "max": 1.2,
      "step": 0.01,
      "unit": "m"
    },
    "length": {
      "type": "number",
      "label": "Section length",
      "min": 0.8,
      "max": 6,
      "step": 0.1,
      "unit": "m"
    },
    "seed": {
      "type": "number",
      "label": "Variation seed",
      "min": 1,
      "max": 64,
      "step": 1
    }
  },
  "materialSlots": [
    "concrete"
  ],
  "parts": [
    "body"
  ]
}