Comment by mananaysiempre

I’m guessing GP’s point is that Google also has the locations of all the people not in cars, so Google Maps could take the hint if it wanted. But thus far nobody appears to care enough to fix this. (And apparently in e.g. India cars and pedestrians may routinely use the same roads at the same time, so perhaps such a system might be more fragile globally that our own experiences would lead us to believe.)