Alex,
There are two ways to do this.
1. Use a ZIP code layer to act as a boundary layer. If the geocode result is
not in the matching zip, it will not geocode. This does not put in the right
place, but it at least eliminates some bad geocodes. The manual shows how to
set this up.
2. Get MapMarker. MapMarker has a database of every address in the US (or
your state) and will attempt to correct the address you give it and match it
to an existing address before doing the geocode process. This address
scrubbing greatly improves geocode results.
But remember the golden rule of computers: Garbage In = Garbage Out. You are
dealing with imperfect addresses and an imperfect street base. You will get
imperfect results no matter what you do. 100 N Winchester always geocodes
incorrectly because the address ranges on all tiger based street layers are
wrong for this area.
BTW, where are you guys at? Our address is 100 N Winchester in Santa Clara,
CA.
- Brad
> -----Original Message-----
> From: Alex Chen [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, January 20, 2000 11:10 AM
> To: [EMAIL PROTECTED]
> Subject: MI geocoding problem
>
> Hi- we have 40,000 addresses that we would like to automatically geocode.
> We have the street address, which are not always accurate, as well as it
> zipcode, which we are comfortable with. The problem is that sometimes the
> address is incomplete, e.g. 100 winchester rather than 100 n winchester.
> Automatic geocoding doesnt pick up winchester, further there is a 100 n
> winchester and a 100 s winchester, and we are uncomfortable with
> arbitrarily picking south or north. My question is, Is there a way to take
> advantage of the zip code we have, i.e. if we know the zipcode, we know
> the general area, and can exclude parts of winchester - something like
> that. we are using 5.0 (but can install 5.5). we use mapinfo streetpro.
> thanks for any ideas suggestions.
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