I have a few proposals related to U-turns. I will create a proposal page for all my examples, but before I started it, I wanted to get any other inputs. Feedback here will only be used in my proposal page, so you are not committing to a final approval either way.
1. Multiple locations with details - reduce to one
We currently have u-turns covered in various degrees in a couple of places.
Wiki guidance suggests that we minimize any large repeated content when possible to prevent sync error and maintenance headaches. In cases that cannot be avoided, templates are used to at least eliminate the sync and update issues.
The current Junction Style Guide/Intersections#Avoiding_U-turns_in_box_and_partial_box_intersections is including the entire template of Routing_penalties/Controlling_U-turn_penalties excluding the Additional Examples at the bottom of the page.
Typical Wikipedia style for a section this big would suggest we keep the large subpage on Controlling U-turn penalties as is, and then on the JSG/Intersection page we reduce that section to a small summary of the issue with a link to the more detailed page.
The advantage is that any reader of the JSG page will clearly see this is a summary with a link to the details page where we cover…the details. This is the path we have been trying to head down on some of our VERY large pages (like JSG/Intersections) that are overwhelming in size and hard to navigate.
2. New summary table for U-turn prevention and enabling
I built this table to be placed at the beginning of the detailed page to help clarify the items that must be set to achieve one or the other outcome.
https://wazeopedia.waze.com/wiki/USA/User:Kentsmith9/u-turn

The table would have wiki links to the specific section covering each of the three categories. It could be used in both the detailed page and the JSG/Intersections page since it is a good summary of what is needed. If you are already familiar with the details, this reminder of the conditions would be all that is necessary for a summary section.
3. Reformat the sub-sections of the u-turn details page
In the Controlling u-turn penalties detail page we have:
- Preventing median U-turns
- Allowing median U-turns
- Checking for parallel incoming and outgoing segments
- Straight median segments
- Curved median segments* Additional examples
I propose we change it to:
- Controlling medial U-turns (include table above)
- Preventing median U-turns
- Allowing median U-turns
- Segment count
- Median length
- In/out parallelism (previously “Checking for parallel incoming and outgoing segments”)
- Straight median segments
- Curved median segments
- Additional examples