If you can't edit something because it is locked, ask for an unlock here or in the UAE Slack channel.
Before you start working on an intersection or roundabout, don't forget to check all the levels of the connecting segments, to make sure you can finish the job!
In areas that are mostly under construction, locks are not required and everyone is encouraged to help.
A stubbed road
If you insist on locking roads in an unfinished area, try stubbing. Stubbing is making a short low-level segment for each exit that a low-level editor can attach to.
You can become area manager by filling out this form. You will then also be invited to join WazeUAE on Slack.