There’s always going to be controversy when you have conflicting sources of truth.
As Sanzclew indicates some consistency is needed – is the intent of using Waze as a navigation app to attempt to be the source of truth (i.e., superceding posted signs) or to be an aid to information existing on the road? Clearly as map editors we want to supply information which is legally correct but. . .
#1 Waze Terms of Use has as its first key point:
“Road information prevails. The information provided by the Service is not intended to replace the information provided on the road, such as travel direction, time based restrictions, lane restrictions, road blockades, traffic signs, traffic lights, police instructions, etc.”
It may be true that the official lists are what are enforceable in court, but by intentionally editing to different standards than those posted on the streets, it seems that we’re also intentionally creating conflict.
#2 As eaglestailg8ter pointed out in local conversations, the CT General Statues CT Gen Stat § 14-218a (2014) states “The presence of such signs adjacent to or on the highway or parking area for ten cars or more shall be prima facie evidence that they have been so placed under the direction of and with the approval of the Office of the State Traffic Administration.”
It is quite possible that when there is a discrepency that signs have been erected without the required process and approval of the OSTA and is therefore is not legally enforceable (i.e., won’t hold up in court).
However, this statue also indicates that a driver legally could be pulled over and ticketed for violating a posted speed limit. Then the onus is up to the driver to prove that the sign was not legally erected (if the driver knows about the process required to erect signs).
If the posted limit somehow ends up faster than the “official list” limit you can’t really be legally ticketed for violating the official list limit given that the posted limit is prima facie the legal limit (even if not legally erected). And if you do, you can still argue that you were driving the prima facie limit.
#3 From a pragmatic standpoint, how does an editor respond to a UR that says that the SL on Waze is not matching the SL posted on the street? It would be going down a slippery slope to say “Waze is correct here, please see the official list as the street sign is incorrect” as that effectively goes against that first key term in the TOS.