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Point Of Vertical Intersection

1 page · 1 crop · ×1 · ancillary

Matched toBridge Vertical Profilebridge.alignment_system.vertical_profileon “PVI”

2 read off the drawings · 1 not established
The class asks forValueHowFrom
Finished Road LevelFRLwants m197.80PVI elevation is stated as 197.80.The proposed vertical alignment profile states the elevation at the PVI. No elevation unit is provided in the reading. This is treated as the finished road level at the PVI, although it is not explicitly labelled FRL.readcheckp1 · p01_r02 proposed vertical curve data
Ground LevelGLwants mnot establishedThe reading provides PVI elevation and vertical-curve grades but does not state a ground level at the PVI.not found
SlopeSLOPEwants ratio/percent+5.4180% (incoming); -4.7671% (outgoing) percentThe PVI joins the stated incoming grade of +5.4180% to the stated outgoing grade of -4.7671%.A PVI has separate incoming and outgoing tangent slopes; both are directly stated for the proposed vertical curve containing the PVI.readp1 · p01_r02 proposed vertical curve data

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.

How the sheets named it

PVI

Every dimension read for it2

  • 18+10.00PVI stationp1 · p01_r02 proposed vertical curve data
  • 197.80PVI elevationp1 · p01_r02 proposed vertical curve data

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

Page 1

crop

p01_r02 proposed vertical curve data

page 1 · gdot_drawing_83a3db2262b94086918a1e232d2b9607_p01_r02_proposed_vertical_curve_data
Original
p01_r02 proposed vertical curve data
{
  "view": "Profile",
  "objects": [
    {
      "name": "proposed vertical curve",
      "tag": "",
      "shape": "crest vertical curve",
      "material": "",
      "count": 1,
      "note": "Vertical alignment diagram for SR 21 PGL - WESTBOUND."
    },
    {
      "name": "point of vertical intersection",
      "tag": "PVI",
      "shape": "point",
      "material": "",
      "count": 1,
      "note": "Station and elevation are shown."
    }
  ],
  "measurements": [
    {
      "label": "PVI station",
      "value": "18+10.00",
      "unit": "",
      "appliesTo": "PVI"
    },
    {
      "label": "PVI elevation",
      "value": "197.80",
      "unit": "",
      "appliesTo": "PVI"
    },
    {
      "label": "incoming grade",
      "value": "+5.4180%",
      "unit": "",
      "appliesTo": "proposed vertical curve"
    },
    {
      "label": "outgoing grade",
      "value": "-4.7671%",
      "unit": "",
      "appliesTo": "proposed vertical curve"
    },
    {
      "label": "vertical curve length",
      "value": "560.0",
      "unit": "FT.",
      "appliesTo": "proposed vertical curve"
    }
  ],
  "notes": [],
  "labels": [
    "PROPOSED VERTICAL CURVE DATA",
    "SR 21 PGL - WESTBOUND"
  ],
  "description": "This crop shows proposed vertical curve data in profile for the SR 21 PGL westbound alignment. A crest vertical curve is depicted with a PVI at station 18+10.00 and elevation 197.80, joining +5.4180% and -4.7671% grades over a 560.0 FT. vertical curve."
}

p01_r02 proposed vertical curve dataProfile

  • point of vertical intersectionPVI×1pointStation and elevation are shown.

18+10.00 PVI station197.80 PVI elevation+5.4180% incoming grade-4.7671% outgoing grade560.0 FT. vertical curve length