United States/Unusual highway networks
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The United States has a significant number of highway networks, especially at the state and local level, which are not easily translated into network=* and ref=* values on their route relations. This page catalogs those networks and provides links to community discussions regarding the tagging of those networks.
Table of Unusual Networks
| State | Road / System | Example Route Relation |
Tagging Scheme or Example |
Shield Example | Ref on Sign?[1] |
|---|---|---|---|---|---|
| California |  49-Mile Scenic Drive
|
109668 109668
|
network=US:CA:San_Francisco:49_Mile_Scenic_Drive No ref |
|
N/A |
| Connecticut | Merritt Parkway
|
15425309 15425309
|
network=US:CT:Parkway No ref |
|
N/A |
| Illinois, Indiana, Kentucky | Lincoln Heritage Trail
|
14976736 14976736 (incomplete)
|
network=US:LHT No ref |
|
N/A |
| Illinois, Indiana, Ohio | Ohio River Scenic Byway | 16058238 16058238 (incomplete)
|
network=US:ORSB (ref varies by state) |
N/A | |
| Indiana, Ohio | John Hunt Morgan Heritage Trail | 15504667 15504667 (Ohio, incomplete) No route relation yet in Indiana |
network=US:OH:JHMHT in Ohio | Indiana Ohio | N/A |
| Iowa et al. | Avenue of the Saints
|
No route relation yet | N/A | 
|
N/A |
| Louisiana | Lake Pontchartrain Causeway
|
13781610 13781610
|
network=US:LA:Causeway No ref |
[2] | N/A |
| Minnesota (et al) | Great River Road
|
456651 456651
|
network=US:GRR No Ref |
|
N/A |
| Minnesota | Amish Buggy Byway | No route relation yet | N/A | .jpg)
|
N/A |
| North Carolina; Virginia | Blue Ridge Parkway
|
55450 55450
|
network=US:NPS:Blue_Ridge No ref |
|
N/A |
| Ohio | Lake Erie Coastal Ohio Trail | 14287121 14287121
|
network=US:OH:LECO | 
|
N/A |
| Ohio | Ohio & Erie Canalway Scenic Byway
|
3693700 3693700
|
network=US:OH:OEC | 
|
Initialism |
| Ohio et al. | Great Lakes Circle Tour
|
4744198 4744198
|
network=GLCT ref=LECT |
|
Initialism |
| Tennessee | Tennessee Scenic Roadways | no known examples | No Consensus (2022-02-11) |  |
variable |
| Tennessee; Alabama; Mississippi | Natchez Trace Parkway
|
3300032 3300032
|
network=US:NPS:Natchez_Trace No Ref |
|
N/A |
| Muliple | Historic US Routes | 3734770 3734770
|
network=US:US:Historic Typically No Ref, but some ways have ref=HR 66 |
.svg)
|
N/A |
Discussions
- OSM US Slack Discussions
See also
References
- ↑ Indicates whether or not the ref is listed on the sign verbatim. Routes listed as "Initialism" have ref values derived from names listed on signage but do not have the initialisms as a standalone increment of text.
- ↑ The shield only appears on mile markers frequently posted along the roadway. The route is prominently identifiable on wayfinding signage but not using the shield.