Two Counties, One Road.

Posted by Boondoggle on 19 February 2011 in English (English)

I've finished the municipalities in Telfair and Wheeler counties, which means it's time for the second pass. One of the things I need to tackle is the County Line Road / Telfair County Line road that runs along the board of Dodge and Telfair counties. There's actually two such roads, but the one in question runs from State Route 117 to the town of Milan. For most for the way the road straddles the county line, while the remainder meanders back and forth across the boundary. To compound the issue, this road has two official names and two different county road numbers.

Here's the problem: How to I tag this way? TIGER apparently has imported overlapping ways in places, some of which I may have destroyed because I didn't know what I was doing during the first pass. Do I redraw the road as a single way and split the meandering portion between counties? But what about the portion that's claimed by both? Do I draw it as two ways, one atop the other?

Anyone have any ideas?

Comment from lezurdis on 19 February 2011 at 22:44

When the road is on the border you can tag it with name:left=* and name:right=* (with respect to the way direction)

Comment from DavidJDBA on 21 February 2011 at 04:36

If the road is a single way in reality, it should be a single way on the map. Otherwise, I wouldn't worry about it. TIGER data is far from perfect and the left= and right= tags are often reversed or simply wrong.

The important attributes are the name, classification and location of the way, along with any governmental highway numbering or other relations. I would probably have done as you did and discarded one of the duplicate ways along with any remaining incorrect or doubtful tags (e.g. left- and right postal codes).


Comment from Sundance on 22 February 2011 at 16:25

Certainly I'd use the alt_name tag as well, not sure how the left and right names would render, and as well how do you decide which gets that name tag and which the alt_name tag? I'd probably pick the lowest alphabetical 1st so in this case
name=County Line Road
alt_name=Telfair County Line Road

But I do like Lezurdis' approach with the name:left, name:right tags too

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