Drawing to BOQpipeline control sheet
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Top Of High Rail

1 page · 1 crop · ×1 · ancillary

Matched toCrossing Alignmentbridge.alignment_system.crossing_alignmentcheckon “High Rail”

2 not established
The class asks forValueHowFrom
Skew AngleTHETAwants degnot establishedNo skew angle is stated or derivable from the construction clearance diagram.not found
ChainageCHwants mnot establishedNo chainage is stated or derivable from the construction clearance diagram.not found

Worked out by openai/gpt-5.6-terra-pro from the readings below, which are the source. A derived value shows its arithmetic — check it against the drawing before it is priced.

Every crop it was read in — the drawing beside what the model took off it

Page 1

crop

p01_r05 construction clearance diagram

page 1 · gdot_plan_ab5a9057847f41e3bb9d0ead3c6f2c22_p01_r05_construction_clearance_diagram
Original
p01_r05 construction clearance diagram
{
  "view": "Detail",
  "objects": [
    {
      "name": "construction clearance envelope",
      "tag": "",
      "shape": "rectangular",
      "material": "",
      "count": 1,
      "note": "Clearance diagram centered on track centerline."
    },
    {
      "name": "track centerline",
      "tag": "℄ TRACK",
      "shape": "centerline",
      "material": "",
      "count": 1,
      "note": "Vertical dashed centerline."
    },
    {
      "name": "top of high rail",
      "tag": "",
      "shape": "line",
      "material": "",
      "count": 1,
      "note": "Callout points to the bottom line of the clearance envelope."
    }
  ],
  "measurements": [
    {
      "label": "overall vertical clearance",
      "value": "22'-0\"",
      "unit": "",
      "appliesTo": "construction clearance envelope"
    },
    {
      "label": "horizontal clearance from ℄ TRACK",
      "value": "13'-0\"",
      "unit": "",
      "appliesTo": "construction clearance envelope"
    },
    {
      "label": "horizontal clearance from ℄ TRACK",
      "value": "13'-0\"",
      "unit": "",
      "appliesTo": "construction clearance envelope"
    }
  ],
  "notes": [],
  "labels": [
    "CONSTRUCTION CLEARANCE DIAGRAM",
    "NO SCALE"
  ],
  "description": "This crop shows a construction clearance diagram with a rectangular clearance envelope over the top of high rail. The envelope is centered on the track centerline, with 13'-0\" clearance each side of ℄ TRACK and a 22'-0\" overall vertical clearance."
}

p01_r05 construction clearance diagramDetail

  • top of high rail×1lineCallout points to the bottom line of the clearance envelope.

22'-0" overall vertical clearance13'-0" horizontal clearance from ℄ TRACK13'-0" horizontal clearance from ℄ TRACK