Hi there! For editors who have been considering the topic of U.S. National Forest Roads, I may have found some useful information on the topic which will lend to guidance on how to classify, name, and prioritize them.
The TIGER map import we got was from (probably 2000). Although the types of forest roads remains the same as it did then, “Forest Road”, “Forest Development Road”, and “Forest Highway” ( http://www.wfl.fhwa.dot.gov/programs/plh/fh/history.htm ), which of these is actually open to travel - and what KIND of travel, is being answered by a project that got going in the late 2000s and is mostly finished now ( http://www.riderplanet-usa.com/atv/riding/motorcycle_00056/National_Forest_Service_OHV_Travel_Management_Plan.htm ).
The end result is that each national forest (as a separate entity) has to publish a MVUM (Motor Vehicle Use Map), displaying suitability for motor vehicles, type designation, and the signage on those roads, and this MVUM is supposed to be updated annually.
Many, but not ALL of these, are included in an interactive map, here: http://www.fs.fed.us/recreation/programs/ohv/index.shtml
Separate, and completed MVUMs are available here: http://www.fs.fed.us/recreation/programs/ohv/ohv_maps.shtml
Lastly, “Information on travel management direction on other national forests should be obtained by contacting the forests directly.”
As a general rule, I would say that any forest road on an National Forest’s MVUM should be named ‘Forest Rte XX’ (do we really care whether it’s ‘highway’, ‘route’, or ‘road’, or ‘development’?) - however long the designation - and typed ‘street’, unless it’s a ‘trail’ (then it’s dirt/4x4 trail). Beyond that, ANY other Forest road, which would probably show up in a USGS topo map or other documentation should just be a ‘private road’, because by definition it’s not supposed to be routed onto.
Seem a reasonable bit of documentation, and a course of action?