Google maps mostly avoids the cardinal sin of most navigation apps: the unprotected left across the multi lane road in heavy traffic.

In my experience GMaps route optimizations don't account for elevation or road size in my country. When I drive outside city I strictly use OSMand for routing.

GMaps driving directions failed HARD for me last night.

I had to make a trip during rush hour. I was already going to be cutting it close on timing as this is a 12 minute drive that can take 15-20 minutes at rush hour. I plugged in my destination and GMaps routed me a way I would rarely take but didn't seem too odd. One block past my last alternate route, I saw the lights ahead. There was a 4 car crash with at least 5 emergency vehicles on scene about 1/2 mile ahead. GMaps had no clue and I had no choice but to inch through about 10 light cycles to reach the turn Gmaps wanted me to take.

The 15 minute trip took me 35 minutes. Thanks for nothing.

You mean, there was an edge case where Google didn't have real-life data for a specific accident available for you? This is an extreme case that we wouldn't even expect to exist a few years ago, (and then got annoyed by passive surveillance) but now gmaps is failing for missing it? Is this the new norm?

Did you mark the accident yourself when you saw it?

He shouldn't need to mark it. Maps can tell that its users are spending 20 minutes to get through a single intersection.

If you have enough users with gmaps on that segment, it will happen. Can we guarantee there was enough in that situation?

After how long? 10 seconds? 2 minutes? 10 minutes?

This seems unreasonable.

For real-time data, Waze is much, much better.

If it weren't already aware of the accident so it could warn you, you could have let Waze know about it and, at the least, helped out many others who were coming after you.

A few days ago I had a rideshare driver unable to find me because Google kept telling him to take a non-existent road through the middle of a building.