[Tagging] What classification for a connecting link?

Richard Mann richard.mann.westoxford at googlemail.com
Thu Jun 17 12:15:50 BST 2010


On Thu, Jun 17, 2010 at 11:53 AM, Nathan Edgars II <neroute2 at gmail.com> wrote:
> On Thu, Jun 17, 2010 at 6:00 AM, Richard Mann
> <richard.mann.westoxford at googlemail.com> wrote:
>> On the specific example, in the UK these would be tertiarys: an
>> ordinary street that serves a "through" or within-city distribution
>> function. They'd have to be pretty dominated by the traffic
>> (effectively part of a gyratory) before they got tagged as
>> primary_link
>
> I think of a tertiary highway as a collector or distributor, used in
> the initial or final portion of the trip to get to or from the higher
> classifications. These, on the other hand, are short connecting links
> that could be anywhere in a trip; for instance, here US 30 eastbound
> follows a portion of Woodlynne Avenue between the normal-looking ramp
> and White Horse Pike:
> http://maps.cloudmade.com/?lat=39.91878&lng=-75.088924&zoom=17&directions=39.92145421035915,-75.0871217250824,39.918343875726904,-75.0898790359497,39.91567776216949,-75.08675694465637&travel=car&styleId=1&opened_tab=1
>
I think you can get away with either calling it a tertiary, or calling
it a trunk_link (or indeed a trunk if it's 2-way). I'd tend towards
"tertiary" if it's clearly residential (ie some effort made to keep
speeds down), and trunk/trunk_link if it's non-residential. But it'd
be a judgement call. The only absolute is making it the same from
start to finish, cos otherwise it's bound to look messy when rendered.

Richard




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