TrackMaps — NCM Motorsports Park, West Circuit with Chicane (v0.8 MAP)
gettrackmaps.com  ·  License: CC BY-SA 4.0

Lap length as measured: 2.01 mi

GEOMETRY
  Centreline drawn by hand on aerial imagery: 255 points, joined by a smooth curve
  that passes within 0.44 m of every point, resampled at 2 m.
  Lap length 2.01 mi (3235 m) computed from the georeferenced centreline on the WGS84
  ellipsoid; the header shows the published 2.00 mi. Direction CW.
  Track width is a nominal 40 ft (not measured).
  Start/finish on the painted line seen in Kentucky aerial imagery 2024 (8 cm).
  Pit lane traced from aerial imagery, 907 m long, drawn at a nominal 30 ft width; pit
  boxes, walls and painted blend lines are not shown.
  Reference features (group context) from OpenStreetMap and drawn by the owner on
  aerial imagery: airbag 6, building 30, paddock 1, road 1, sand 4, tyres 35, wall 48.
  Start/finish and reference features checked against Kentucky aerial imagery 2024 (8
  cm).
  Elevation from USGS 3DEP (1/3 arc-second DEM, about 10 m, flown 2017 to 2024, NAVD
  88): 18 ft change over the lap, low 509 ft, high 526 ft, 61 ft of climb per lap.

TURN NUMBERING
  Turns numbered by hand on the aerial.

DATA SOURCES
  Map data (c) OpenStreetMap contributors (ODbL). Aerial photo: KyFromAbove,
  Commonwealth of Kentucky (public domain), 2024, used for verification only. Artwork
  CC BY-SA 4.0.
  Elevation: USGS 3D Elevation Program (3DEP), public domain.

FILES
  ncm-motorsports-park-west-circuit-with-chicane-workbook.pdf    print workbook: cover map, one page per turn (15), session log
  ncm-motorsports-park-west-circuit-with-chicane-*.svg           editable vector source per page, opens in Adobe Illustrator

SVG GROUPS
  header / footer / context / pit-lane / track-edges / track-continuation / curbs
  turn-bubbles / turn-bubbles-ghost / direction / startfinish / locator / scale / north / elevation
  curbs-extra (the other corners' kerbs, outside kerbs and unnumbered bends)
  apex / apex-extra: kept empty (no apex dot is drawn)

NOTES
  Kerb strips were marked by hand from the aerial photo. The outside kerbs at T1a to
  T3, T5 to T8, T10, T12 and T13 and the kerbs on 5 bends without a number were marked
  by hand from the aerial photo. Pale grey fills are paddocks and lots, grey-tan bands
  are service roads, mid grey fills are buildings, sand-coloured fills are gravel and
  sand traps, pale blue fills are water; dotted grey lines are walls and fences next
  to the track, thin grey lines are access roads. North arrow on every page.
  A chain of small grey rings is a tyre barrier; a grey band with a white centre is an
  airbag or soft wall.
  Elevation strips: the whole lap on the cover (feet, S/F at both ends, turns ticked) and
  the drawn stretch on each corner page (grade in percent at the apex, crest or dip marked).
  Not for navigation; verify references on site.

CHANGES
  v0.8: first edition, drawn by hand on aerial imagery (lap 2.01 mi measured);
  start/finish placed on the painted line; reference features, north arrows and
  elevation added; corner numbering set by hand (see TURN NUMBERING).