[Talk-us] US Trunk road tagging

[Minh Nguyen]

Vào lúc 01:17 2021-05-05, Minh Nguyen đã viết:
> * A large-scale road map intended for long-distance driving would 
> primarily emphasize connectivity. Minimizing road density matters a 
> great deal at large scales, so short roads of great local importance may 
> be omitted nonetheless. In the U.S., route networks are typically used 
> an intuitive proxy for connectivity. It may secondarily depict certain 
> physical characteristics such as paved/unpaved, divided/undivided, or 
> bridge/tunnel. Cartographers distinguish classfications using not only 
> road color and width but also casing and knockouts (i.e., erasing a line 
> segment that would underlap a label).
> 
> * A small-scale city street map would primarily emphasize physical 
> characteristics, giving prominence to wide boulevards and avenues, no 
> matter how functionally obsolete. The primary cartographic tools are 
> line width and label style. Regardless of scale, a map for cyclists 
> would also emphasize physical characteristics for safety reasons, maybe 
> even classify roads according to subjective stressfulness criteria.

I mixed up large- and small-scale throughout my previous post. Sorry for 
the confusion. I knew I should've authored this novel on a wiki page.

-- 
minh at nguyen.cincinnati.oh.us