For road closures that are in progress, or set to start soon, your best choice is to post on our Slack platform.
The Waze forum is in use for less urgent requests:
Luxembourg: https://www.waze.com/forum/viewforum.php?f=386
Belgium: https://www.waze.com/forum/viewforum.php?f=718
In Belgium, non-urgent requests are often also handled on Slack.
Slack is also the platform to communicate with the local community on various other topics.
