{
  "title": "Streetcar boarding-change data for AI rider information",
  "source_page": "https://fiund.com/industries/streetcar-boarding-change-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A shared stop name does not erase direction and notice-validity differences",
    "context": "An original abstract streetcar loop uses fictional stops and trips. It contains no live position, staff, access detail or instruction for an actual passenger.",
    "records": [
      [
        "STC1",
        "Stop map",
        "Display name Central refers to EAST stop E1 and WEST stop W1, distinct IDs. Trip T-E is eastbound; T-W westbound."
      ],
      [
        "STC2",
        "Current notice",
        "Authorized day D, hours 10–12: eastbound E1 boarding changes to temporary E2. Scope names E1 and EAST only."
      ],
      [
        "STC3",
        "Other notices",
        "WEST change W1-to-W2 expired on D-1. Question Q1 asks T-E at 11 on D; Q2 says Central at 11 but omits direction."
      ]
    ],
    "question": "Which notice supports Q1, and can Q2 select the same temporary stop from its display name alone?",
    "answer": "STC1 and STC2 match T-E's eastbound direction, E1 identity and the day-D 10–12 validity window, supporting E2 within this fictional lookup. Q2 lacks direction, so Central could mean E1 or W1; it cannot inherit the eastbound change. STC3's westbound notice is expired and supplies no current W2 instruction. Preserve affected entity and interval rather than repeat a temporary stop across both directions.",
    "failureModes": [
      "Applying an eastbound notice to a westbound stop with the same display name.",
      "Using an expired notice or filling an omitted direction from assumption."
    ],
    "fields": [
      [
        "Trip, stop ID and direction",
        "Defines the affected entity."
      ],
      [
        "Notice authorization and valid interval",
        "Selects the source."
      ],
      [
        "Temporary stop and missing direction",
        "Limits the response."
      ]
    ],
    "holdout": "Ask about T-E at 13 on D. Require the temporary-window claim to expire instead of preserving E2 from the earlier answer.",
    "boundary": "Use invented stops or separately authorized public records. Exclude live dispatch and customer data; the benchmark supplies no real-time passenger direction."
  }
}