Alpha Austin GP Circuit 0.1.0

Austin GP Circuit (alpha)

The Grand Prix circuit near Austin, Texas, at 1:1, built from survey data: 5.5 km and 20 turns with the climb to Turn 1, the esses,
the long back straight and the stadium section, on a 4 × 4 km level.

What's in it

• The track as surveyed: edges, kerbs, crests and camber fitted to airborne lidar to within a few centimetres; the pit lane
  and the two short-course connectors. Kerbs with their measured profiles.
  
• A used track: a darker racing line, rubber in the braking zones, older and newer asphalt where it was repaved, tyre marks
  across the track and over the kerbs and run-offs, faded paint.
  
• Run-offs: the painted run-off areas with their stripes, stars and the big flag, as our own vector art.
  
• Trackside: a barrier with a catch fence along both sides, gantries, footbridges, the tunnel portals, start / finish and
  grid markings.
  
• Buildings: the main grandstand with its canopy, the tower, the pit building, the big stands and the amphitheatre
  (simplified), ~480 other buildings at their measured heights.
  
• Landscape: terrain from the lidar, 39 lakes, dry October grass, and ~150,000 trees, each placed and sized from the lidar's
  tree crowns (BeamNG's own tree models).
  
• Gameplay: a time trial with two sectors and a 3-lap AI race from the grid (5 opponents by default, up to 15), six spawn
  points (pole, last grid slot, pit lane, before Turns 1, 11 and 12), camera bookmarks, an October afternoon sun.
  

Installation
Put the zip into your mods folder (or use the repository's install button). Do not unpack it. The level appears in Freeroam as
"Austin GP Circuit"; the missions are under the level in the mission list.
Tested on BeamNG.drive 0.40.0: a few seconds to load (about 30 s the first time), about 1.8 GB of VRAM.

Known limits (alpha)

• Only the Grand Prix layout: no National or short-course layouts, no karting track. No pit-lane speed penalty.
  
• The state of 2021: the survey data is from 2021. The 2022 and 2024 repaving is in; the gravel and turf added since 2024
  are not.
  
• Simplified trackside: one barrier type all round (no tyre walls, Armco or Tecpro), no marshal posts or light panels;
  footbridges without ramps, gantries without panels.
  
• Simplified buildings: flat roofs, no windows on the minor buildings; the stands are rough; the main stand's covered part
  is estimated.
  
• Trees are look-alikes: BeamNG stock oaks, junipers and shrubs stand in for the local species.
  
• The level edge shows as a blue band from high viewpoints. No minimap yet.
  
• No traffic; the AI is for the race mission.
  

Data and credits

• Elevation: StratMap 2021 lidar, Texas Geographic Information Office (TxGIO),
  geographic.texas.gov, public domain (CC0 1.0). The data was processed and modified for
  this level. TxGIO and USDA NAIP aerial images were used as reference only; no photo is in the level.
  
• Roads, buildings and water: © OpenStreetMap contributors, available under
  the Open Database License (ODbL).
  
• Trees, grass, asphalt, terrain and other materials are BeamNG's own stock assets, used from the game.
  

Unofficial and unbranded: not affiliated with or endorsed by the circuit or any racing series. The level is generated by a script
from these sources rather than built by hand; feedback on wrong geometry is welcome – please say the turn number.