[Update Page] - Classification of crossings
Another thread started discussing the need to update the page Classification of crossings and consider linking to the Junction Style Guide.
Agreed. Some of these points were made in the other thread and copied here for convenience.
Agreed. Some of these points were made in the other thread and copied here for convenience.
- Is the "classifications of crossings" (i.e., DSS, SSSS, DDSS, etc.) something we even use as a reference? I am not questioning the benefits of showing the intersections, but rather why we need to put names to them? If we keep the page for other reasons, I have no problem keeping the names, but what about intersections with roads approaching from 5 or more directions?
- This page appears to be more of a list of intersection images that cause problems with U-Turns. It tells you what to call these intersections, but fails to show how the intersections should be redrawn to fix the issues. That can easily be remedied with before and after images of intersections.
- Formatting needs to be addressed, and I have an idea to put the before and after images in a table layout with text describing why it is a problem. I created a similar table for Roundabout Road Types.
- The Germany note has a typo of some kind. Need to have someone from Germany confirm which is legal from the statement: "U-turns are allowed..., except they are permitted..."
- Many of the sentences should be restructured a bit for improved readability.
- The page talks about "crossings", but these are actually just junctions of different types.
- The whole first section is about preventing U-Turns. Is that something we are really trying to do as a general rule in all countries?
- "U-turns are rarely legal" is not a true statement and we should reword to be more world-wide neutral.
- "Ad-hoc routing is better when U-turns are not possible." Is this true? This goes with the question stated a few back.
- The 4-way crossings description has a debate going on whether that intersection allows U-Turns when it is locked. This should be taken off-line with a decision as to what should be said.
- Some of the dual road entry titles are not correct. For example in DDSS it is called "2 Dual Roads crossing 2 single roads." In actuality either "1 Dual Road is crossing 1 Single Road" or "2 Dual Roads intersect with 2 Single Roads."
Re: [Update Page] - Classification of crossings