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True, but as the OP points out, it's a bit of a chicken and egg situation - if you avoid a road because it appears to be jammed up, you won't be in a position to submit that "all-clear" data. This isn't a problem unique to Waze though - the crowd-sourced data used on parts of Google Maps also suffers from this problem - and even with roadside monitoring the data can appear incorrect in certain situations (e.g. a road closure leading to zero traffic along a stretch of monitored road, which then appears to be free flowing...)
The problem is then how long you allow historical data to remain in use before assuming it's no longer valid. Time it out too quickly and you risk routing people straight into a still-present jam, which would be annoying. Time it out too slowly and you risk sending people off down less optimal routes to avoid a now non-existent jam. This is probably less annoying, as unless you know the jam is no longer present then you'd still think Waze was doing its job correctly, although if the route you've been asked to follow is a bit tricky to drive then you might be cursing Waze anyway by the time you've regained your original route...
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CBenson wrote:Yes, but waze routing is based on the automatic traffic data (those that color the road), not the manual reports that last for awhile and disappear.
This is probably the biggest discrepancy in my area. I often see roads that are very lightly traveled being orange or red. Sometimes no cars at all!
There should be a way for a Wazer to submit an "all clear" notification of some sort.
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Trunks30 wrote:if waze isn't deeming 15mph on a 70mph road heavy traffic, then how is that outsmarting traffic?
If all the other options are going at less than 15mph or taking a faster road will get you to your destination later than if you sat in the traffic, then you are still outsmarting traffic by going 15 in a 70.
It is impossible to avoid ALL traffic and Waze never promises it will avoid all traffic for that reason.
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