<div dir="ltr"><div dir="ltr">On Sun, Sep 12, 2021 at 7:52 PM Eric Patrick <<a href="mailto:txemt1@gmail.com" target="_blank">txemt1@gmail.com</a>> wrote:<br></div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><span style="color:rgb(80,0,80)"></span> Functional classification isn't going for looks, though, it's going for function. The states have spent a lot of time and effort since FC was first introduced about a decade ago. <div></div></div></blockquote><div><br></div><div>Functional classification isn't going for looks, but the OSM highway=* classification is. To control information density, one map may display only trunk and motorway roads, another may display only primary and higher, and yet another may display only tertiary and higher. Ideally all three should be a sensible and coherent highway network map even though they are omitting lower classes or roads. This is a slightly different goal than functional classification. To determine which roads ought to be trunk in Vermont, we looked at the FHWA functional classifications, the National Highway System, and the state DOT snow plowing priority map. It would have been nice if our state DOT had a single classification system that we could simply map onto OSM highway=* values to produce a good highway map. Since they do not, we looked at the commonalities between these datasets and considered connectivity between cities and towns of regional importance. This gave us a
pretty clear picture of which roads are the most important in the
state. <br></div><div> </div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>There should be some conversation about the lower roads, as they're just as important as the major roads, especially the secondary. <br></div></div></blockquote><div> </div><div>In Vermont we're taking it one step at a time as we volunteers have limited time and energy. Now that we have trunk roads determined I'm sure we'll move on to the lower classes, but there hasn't been much discussion on this yet. I imagine Kevin is similarly trying to break the problem up into pieces so as not to get overwhelmed with the complexity.<br><br><br></div></div></div>