[Imports-us] USPS mailbox locations database

[Toby Murray]

I just did a spot check of Manhattan, KS. As mentioned previously, the
positioning is not terribly accurate. Definitely a geocoding job. Boxes
that are in the middle of a parking lot of a shopping area or even inside
of a supermarket show up immediately next to roads which puts them off by
several hundred feet sometimes. Because of this uncertainty I'm not sure if
the data set might also be out of date. They show one box in an old
location. It was moved due to construction last year but I'm guessing the
official address didn't change even though it is now adjacent to a
different named road but still in the same shopping area.

Pickup times is definitely an interesting thing to talk about. I have never
bothered to map this information even when I've mapped the box. I'm
guessing most people don't. It would actually be great if we could offer
the USPS a two way street. Improve their positional accuracy and get their
metadata. I'm guessing that wouldn't be a simple proposition with licensing
and such though...

Toby



On Mon, Jun 17, 2013 at 5:09 PM, Richard Welty <rwelty at averillpark.net>wrote:

> On 6/17/13 5:54 PM, Bryce Nesbitt wrote:
>
>> Based on a bicycle survey of the nearest 50 post boxes to my particular
>> home location, I found a 100% match on
>> the ground to the USPS data in both general location and pickup hours.
>>  OSM
>> had far better positions, but was missing 25% of the postboxes completely
>>
>>
>>  another mapper indicated a different opinion of the data quality. i
> suggest
> finding a path to a larger sample size over a broader geographic area.
> TIGER 2005 is much better in some places than others; data quality
> depends a lot on the local personnel doing the work. your neighborhood
> may not accurately reflect data quality in, say, Flagstaff AZ or anywhere
> in WV.
>
>
> richard
>
>
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