Where is Waze accurate? [closed]

At home I am a huge fan of Waze In my opinion, it is the best and most accurate source of traffic information at home that is. However, recently I used Waze on a trip in San Diego. Only to find that the predicted traffic jams in San Diego from Waze are a joke. At some time the cursor in the Waze app was heading towards a massive junction of red lines, only to learn that I was totally on my own.

Apparently, Waze is only accurate in certain regions. Since the quality of the information given depends on the amount mobile devices in the area, I would expect San Diego to be part of that set of regions. I was proven wrong.

Can you learn before using Waze what its coverage is in a given region? If the coverage is bad, does that indicate that other apps will do worse, meaning Waze is still a good source?

traffic mobile-apps

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How is Waze so accurate?

Real-Time Data Though it's unknown exactly how much data is shared between the two apps, Waze and Google Maps are known to collect real-time traffic data from users who are already on the road. Because of this, both apps do provide accurate directions that take into account traffic jams, major road closures, and more.

How do I make Waze more accurate?

Currently, you can add a place to a Waze map, submit a report, or edit the streets on a map to make it more accurate. To add a place, simply select the orange speech bubble in the lower corner of your map directions.

Which countries does Waze work in?

Availability abroad Waze can be used everywhere in the world where there are roads. However, the quality of our maps differs depending on the size of the user community at the location. You can check our map coverage at your destination prior to flying using our web-based Live Map.

How often does Waze update traffic?

Map update timing The Waze servers typically update the client and Live Map every 24 hours, but at times delays could cause this to be multiple days between updates.

How to Use the Waze App – Beginners Guide to Waze 2019

Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.

Images: Ann H, Engin Akyurt, Pixabay, Felix Mittermeier