Are there any mappers out there who need or use radio metro boundaries? Radio metros are defined by Arbitron in the US to define the principal markets for radio audiences. They frequently cross county boundaries; counties and/or ZIPs are usually used to define metros. They are sometimes the same as MSAs, but usually different. Some metros are subsets of others. (Another definition is TSA, total station audience, which is a broader definition taking into account stronger signal stations. Larger still is the DMA, which is a TV market definition that is widely available as boundary files.) As far as I know, radio metro boundaries are not available unless you make your own. I've created radio metro boundaries in the past by combining county or ZIP objects. Since both radio markets and ZIPs are subject to change, however, I need to do it again, and I'm wondering whether there's anyone else out here with similar interest or needs. So if you're interested, please reply to me or on the list. Thanks Josh Ostroff Virtual Media Resources ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
