[Talk-us] US highway classification

[Nathan Mills]

 On Sat, 28 May 2011 16:21:24 -0400, Nathan Edgars II wrote:

>> Using NE2's criteria, trunk is not really any different from a 
>> routing
>> standpoint than primary.
>
> No, trunk is to primary as primary is to secondary.

 Except that it's not. You have upgraded roads from primary to trunk 
 where there are no roads tagged primary in the vicinity and that are not 
 physically any better than the usual rural primary. You're wasting a 
 classification by making a distinction where there is no real 
 difference. Trunk would be better used for the next class of highway 
 below motorway, not the arbitrary standard you seem to be using.