TrackMaps — Autobahn Country Club, North Circuit Inside-Outside (v1.0 MAP)
gettrackmaps.com  ·  License: CC BY-SA 4.0

Lap length as measured: 1.50 mi

GEOMETRY
  Centreline drawn by hand on aerial imagery: 208 points, joined by a smooth curve
  that passes within 0.47 m of every point, resampled at 2 m.
  Lap length 1.50 mi (2410 m) computed from the georeferenced centreline on the WGS84
  ellipsoid; the header shows the published 1.46 mi. Direction CW.
  Track width is a nominal 40 ft (not measured).
  Start/finish placed abeam the start/finish marked on the aerial (no painted line is
  visible in the imagery).
  Pit lane traced from aerial imagery, 803 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: building 37, paddock 4, road 12, sand 2, tyres 50, wall 70.
  Start/finish and reference features checked against USDA aerial imagery 2025 (0.6
  m).
  Elevation: not shown for this layout.

TURN NUMBERING
  Turns numbered by hand on the aerial.

DATA SOURCES
  Map data (c) OpenStreetMap contributors (ODbL). Aerial photo: USDA Farm Production
  and Conservation Business Center aerial photography (public domain), 2025, used for
  verification only. Artwork CC BY-SA 4.0.

FILES
  autobahn-country-club-north-insode-outside-workbook.pdf    print workbook: cover map, one page per turn (11); print it one-sided
  autobahn-country-club-north-insode-outside-98-notes.svg    notes pages (Session Log & Notes), not in the workbook: their own
  autobahn-country-club-north-insode-outside-99-notes.svg    download on the map's page; print them front and back, as many as you like
  autobahn-country-club-north-insode-outside-*.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
  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 T2, T3,
  T5, T5A, T6 and T8 and the kerb on a bend without a number were marked by hand from
  the aerial photo. T9 has no inside kerb. 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.
  Not for navigation; verify references on site.

CHANGES
  v1.0: first edition, drawn by hand on aerial imagery (lap 1.50 mi measured);
  start/finish placed abeam the start/finish marked on the aerial; reference features
  and north arrows added; corner numbering set by hand (see TURN NUMBERING); every
  page keeps a blank 3/4 in strip along the top edge for a hole punch; the workbook is
  the maps only, and the two notes pages are their own download.