The coordinates in the static gtfs shapes.txt are like -33.8832170090139. That’s 13 decimal places, according to https://en.wikipedia.org/wiki/Decimal_degrees 6 decimal places is ~10cm, which is probably as accurate as you need for this file, even 5 decimal places will still give ~1m precision.
Trimming the coordinate precision will make the file sizes smaller, easier to work with, faster to download etc. Similarly the shape_dist_traveled seems to be over precise as well.
What are your thoughts on this?