It's been confirmed by the Waze staff several times that:

1. WME displays the overall average speed for a segment.
2. The routing engine uses real-time speeds (if available) and the historical speed of the segment broken down into 10-15 minute chunks. As well as time-to-turn information.
3. The broken down speed information is proprietary & is part of the data Waze sells/plans to sell and won't be displayed.

Simply drive the roads and Waze will eventually work it all out. See the wiki for more details on how this all works.

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You should not be restricting turns just because traffic is bad or the route is allowed at certain times. Please revert that change if the above is the case and consult the wiki.
The only way for Waze to learn is to drive the way you think a few times, and the way Waze suggests a few times. It will learn but it takes time.

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Again, this is all covered in the Wiki, probably in the FAQ, please defer your question to that.

Averages are rarely used. If you think your way is faster, drive it a few times. I said this above...

NEVER delete segments because you think the averages are wrong. What is displayed speed wise is not used in route calculations and you will be deleting valuable data if you remove segments.

The average displayed is the overall average speed. A table of the averages at different times will never ever happen. It is Waze's source of income and by displaying that data freely, any competition could use or steal it.

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Beat me to it. Yeah, what I said is fact since it's a repeat of what Waze themselves have told us in the past.

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There's an app for that.
Specifically a Firefox userscript that will show messed up junction nodes.
Check the wiki for community plugins

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Timbones wrote:The average speed isn't used by Waze anyway - it collects statistics about traffic speeds throughout the day, and learns when the busy times are.

Then how does it determine how long it and current traffic takes to drive a certain route? Just by speed limit and current traffic congestion?

thats stange, since in not a busy hour, it sugest stange routs, like getting out and in from the main street, passing throw 1 more intersection.

This is beacuase the mian street is slower thant the exit, check: https://es.waze.com/editor/?zoom=7&lat= ... ,180724944

The correct rout should be to go all the way in Rambla República de Chile, how ever, waze tells you to do Rambla República de Chile turn right int Santiago de Anca turn left in Yaco and turn right in Rambla República de Chile.

I mark as not allowed the turn left from Sangiago de Anca to Yaco, but in same cases this is not possible.

Also the average speed for the segments are:

Rambla República de Chile is 39 km/h
Santiago de Anca is 42 km/h
Yaco is 37 km/

Which, in case of speed, is better the rout suggested by waze and not to go all the way through Rambla Republica de Chile.