So, I thought junction boxes weren't available or working in the editor yet, however I just tried to create one and it worked! (creating it, that is - we'll see if the routing works after the next map update).

For those of you who haven't heard of them, a junction box is a feature that's been coming "soon" for a few years now. It makes setting turn restrictions on very large and complicated junctions much easier. Instead of trying to set the turn restrictions for each node within the junction, you can define which paths through the junction can be used for every combination of road segments entering and exiting the junction. This is handy for stopping U-turns where two dual carriageways cross, for example, which isn't otherwise possible when a junction is shaped like a '#'

There are probably better explanations of what a junction box is elsewhere, but I haven't been able to find them. If anybody can find a good explanation then please post it here.

It looks like junction boxes are locked to L5 though, and I can't lower the lock level on the junction box I've just created, so please create an editor request for any complicated junction with routing issues that looks like it might benefit from a junction box.

++David \ davidg666