Road classification update

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Road classification update

Postby Riamus » Wed Oct 16, 2013 5:21 pm

This is just an update to let other editors know where we are at with updating the road classifications in northern Michigan, including updating the County Highway System. Please note that these are set to the minimum standard for each road type. There may be instances where they should really be a higher classification, but without being able to directly check these areas myself, I can't be certain of that. So although these are complete, there may still need to be some upgrading of roads to a higher classification beyond where they are now.

  • All area C county highways are complete.
  • All area F county highways are completed except: F18 and F19 down near Prescott (outside of my area), and F97 from St. Helen south (outside my area). If anyone can finish those, that would be helpful.
  • One area H county highway has been started in St. Ignace. I haven't done any other area H county highways and can't finish that one as it goes outside my area.
  • All arterials and collectors north of Roscommon are completed up to St. Ignace. This includes all areas from Lake Michigan to Lake Huron.

This should greatly improve routing throughout northern Michigan. More work is still needed throughout the rest of the state. For any editors who want to help with the classification of collectors and arterials, please see this for information on the NFC classifications. All collectors (yellow and orange lines) should be at least Primary Street, but can be higher if needed. All principal arterials (red lines) should be at least Major Highway. And the rest of the arterials (green lines) should be at least Minor Highways. In addition, all shielded County Highways should be at least Minor Highway. Note that this includes only shielded county highways - these all begin with a letter between A and H, followed by 2 numbers. Other county roads, such those in the format of County Road XXX are not included as they are not shielded roads. One resource for the County Highway System is here, though there are other resources that can provide better detail. You can also verify the routes using Street View and looking for the signs. If anyone has any questions, feel free to ask.

Other work that is desperately needed throughout northern Michigan and perhaps other areas in the state includes correctly setting road direction and turn restrictions. Both of these are very often incorrect/incomplete and can have a large impact on the ability to route someone correctly. There is more to do as well, but road classification, road direction, and turn restrictions have the largest impact in properly routing traffic. There are also a number of missing roads from new construction that need to be added.
Last edited by Riamus on Wed Nov 20, 2013 5:21 pm, edited 4 times in total.
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Re: Road classification update

Postby sketch » Wed Oct 16, 2013 5:29 pm

I want to note here that the Detroit area is in severely bad shape with regard to road types. I intend to start on reclassifying the roads in the area consistent with NFC at some point, but it's going to be a big project and anyone who would like to get started wherever they can is welcome to do so, of course.

Just to point out how absurd it is: https://editor-beta.waze.com/editor/?lo ... TT&env=usa

Metropolitan Parkway, which runs east-west, is in every way a thoroughfare. In fact, from Schoenherr Rd all the way to its eastern terminus, it's an expressway, with a 55 mph speed limit and grade access only at major intersections. Nevertheless, it, along with many other 45+ mph roads, is set as a "primary street". That doesn't even hold water along the current unclear standards.
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Re: Road classification update

Postby Riamus » Wed Oct 16, 2013 5:56 pm

Wow. That looks like a lot of work. "Nice" grid of primary streets going on there. I'm sure that many of those really aren't valid, but it's been so long since I've been in Detroit that I may be wrong. :)

And even without knowledge of Metropolitan Parkway or checking the NFC, I'd say that's at least a Major Highway. It looks to me like a principal arterial at the minimum and possibly a freeway.
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Re: Road classification update

Postby sketch » Wed Oct 16, 2013 6:01 pm

It's not a freeway, since it's not fully grade-separated, but it is an expressway at least at that point; IMO all non-freeway expressways should be Major Highway. And it's certainly a principal arterial!
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Re: Road classification update

Postby robc007 » Thu Oct 17, 2013 5:53 pm

Yeah that looks pretty awful. Some of those roads in the primary street and minor highway groups have 6, 7, 8+ lanes wide. It makes a useful map of the freeways at best.
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Re: Road classification update

Postby sketch » Thu Oct 17, 2013 6:19 pm

Contrast it with this map of New Orleans, which has been updated to mostly match NFC (with a few adjustments since our maps use 2000 census data): https://www.waze.com/editor/?lon=-90.14 ... 7498862956

The amount of red may be surprising to editors used to the old, vague system, but it looks great in the livemap: https://www.waze.com/livemap/?zoom=12&l ... =-90.13802 and it seems to be working quite well for routing, too.
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Re: Road classification update

Postby Riamus » Thu Oct 17, 2013 6:43 pm

That does seem a little excessive. And not just the Major Highways. That section where every street is a Primary Street by the bend in the river is kind of ridiculous. But I'm still all for using the NFC even if I think it's a bit crazy at times. As far as how it looks in the Live Map, the little bit I can see does look nice. Unfortunately, the Live Map isn't loading most of the area for me. I can sometimes pick up a section by zooming, but never the entire area. Not sure what's going on there today.
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Re: Road classification update

Postby sketch » Thu Oct 17, 2013 6:51 pm

I agree, it does seem pretty excessive looking at the editor. But that's sort of my point: how it looks in the editor, based on what we've been doing for the past few years, isn't relevant because that's not what users will see. It's the live map and the client which matter.

As for those primary streets in the French Quarter, well, NFC had a couple of those in either direction marked as collectors. But none of those streets is really more important for drivers than any of the others, they're all one-way, all 25 mph, all congested, and so forth. So I figured it would be wise, and would look better, if the main grid of the French Quarter were uniformly set at Primary Street.

I wasn't sure if that live map not loading thing was just me. The WiFi I'm on can be pretty unreliable. Oh well.
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Re: Road classification update

Postby CBenson » Thu Oct 17, 2013 8:58 pm

sketch wrote:I wasn't sure if that live map not loading thing was just me. The WiFi I'm on can be pretty unreliable. Oh well.

I'm having the same problem looking at New Orleans on the livemap. What's odd is that its the only place in the country that is not loading for me. Everywhere else where that I've tried panning to and zooming in on loads just fine. I think all those major highways have broken the livemap. ;)
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Re: Road classification update

Postby lelehman » Sat Nov 02, 2013 7:23 am

Detroit is going to end up about as intense as NOLA, from the looks of it. I've started on the area that I have access to at the moment. This is what it looks like after I finished (or almost, anyway) adding the major highways. Here's what I'm basing it from - I have never before wished for a clearer PDF. ;) Should I move on to adding the minor highways and such, or downgrade most of these back to minor highways/primary streets? There was very little distinction between road types before I started this, and at the very least we might be able to get a good amount of feedback on how the routing is working. Agreed, it looks kinda ridiculous, but I can see how it would work pretty well. Since the NFC maps were updated in 2012 and should be fairly accurate, I'm willing to try this on a larger scale, if other Michigan editors are in agreement.

EDIT 11/3/13: Another editor reset about half the roads I had edited back down to primaries/minor highways, but basically anything you see as a minor highway in this area is a major highway on the NFC map.
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