Help on using old SR Track Editor, very old video tutorial.
There is a 10 chapters (very OLD) video tutorial (version 1.7) on YouTube:
Chapter 1: Intro
Chapter 2: Terrain
Chapter 3: Road, basic
Chapter 4: Road, advanced
Chapter 5: Fluids
Chapter 6: Vegetation
Chapter 7: Checkpoints
Chapter 8: Drive
Chapter 9: Objects
Chapter 10: Tools
and 4 addidtional chapters (from version 2.1)
Chapter 11: Fog
Chapter 12: Grasses
Chapter 13: Warnings
Chapter 14: Terrain, advanced
These videos (64 minutes total) cover creating a new track in detail. Even if being quite old now.
There is a more recent page describing editor features here.
Note: Creating a very simple track (or just editing an existing one) doesn't require watching all parts (at least 1,2,3,7).
Creating a good, long or difficult track reaches 2 or more hours of editing. But a simple track can be done in 5 minutes if you know editor.
0:00 gui navigation, screen resolution, graphics presets
0:51 help window, shortcuts, tooltips
2:09 basics
2:30 camera
3:20 edit modes (terrain)
5:19 edit modes (road, water)
5:48 approaches to making tracks,
7:45 quickest track - terrain align to road result (TestC8-Align)
0:00 duplicate track, set name, delete rest
0:36 terrain and heightmap sizes
1:06 brush presets (used: deform, noise, filter)
2:47 new terrain layer sand
0:00 help pages
0:30 insert basic road shape
1:33 selection, rebuild, move point, height, roll angle
2:57 align terrain to road done
3:14 bridge
3:43 bridge entry fix
4:15 smooth (flatten) brush
4:33 place car start, rotate
0:00 copy loop from other track, trk find use, rotate sel
1:17 make pipe, adjust
2:34 copy, insert point, adjust
3:16 banked terrain corner
4:00 copy jumps from other track
0:00 add water are, sizing, move, height (depth), deform terrain
2:20 add mud area
2:57 road material changing to sand (part)
0:00 adjust density of trees and grass
0:20 grass min. height
1:21 parameters description
1:54 vegetation models, and their parameters
0:00 road direction set +1/-1
0:26 mark 1st checkpoint (1)
0:35 adding checkpoints
1:40 track description text
2:07 track preview screenshot
driving tutorial track with comments on minor track errors left
0:00 objects list, inserting
0:45 height adjust, stacking
0:56 simulation toggle
1:50 select, move, delete
3:13 static building, scaling
3:47 multiselect, move group
4:15 driving on track, hitting objects
0:17 pick source track, copy terrain layers, vegetation, road parameters
1:04 sun tab, fog, rain, sky
2:08 sun light direction angles
2:43 copy, turning scenery to desert
3:16 terrain generator
4:09 scale track, terrain height
4:45 terrain layers particles, trail color
5:18 surfaces, for tire parameters
5:51 sunset, ambient color, sky
0:00 Terrain generator
2:58 New Brushes
(3:07 Top view)
4:53 Triplanar1 option and Terrain Error