MARC Home Page > Public Safety Home Page

Mapping FAQs

Some of the most frequently asked questions about mapping are answered here. For more information contact Saralyn Hayes, 9-1-1 Database Manager, at 816/701-8314.

How do I know who current my map data is?

The date of the map is displayed in the main map window of GeoLynx. The date may be found by zooming to the area at the southwest corner of Miami County. This date is referred to as the “born on date”. The map data should be updated on a weekly basis, every Tuesday night starting after midnight. (view sample map)

What if the map data has a date that is over two weeks old?

Contact Saralyn Hayes, 9-1-1 Database Manager at MARC, shayes@marc.org or 816/474-4240 and report the current date of map data that is displayed on all 9-1-1 positions.

Why does a cell sector NOT display during a Phase 1 call?

There are two possibilities why a cell sector will not display:

The Unique Id for the individual cell sector that comes with a Phase 1 call may not match the information in the map data.
The cell sector has not been developed in the map data.

In both cases, provide the exact cell sector information that is displayed during the Phase 1 call (print screen, write comments on, then fax) to Saralyn Hayes, 9-1-1 Database Manager at MARC 816/701-8314.

I see a street or subdivision in my area that is missing – what should I do?

Complete the "Map Log Discrepancy Report" in GeoLynx. This report should be printed and faxed to Saralyn Hayes, 9-1-1 Database Manager at MARC 816/421-7758.

Why can I not see the cell tower sectors all the time?

There are over 5200 cell sectors in the MARC region. If they were always displayed on the map, you would not be able to see anything else. They would cover all other map data.

Why do wireline 9-1-1 calls not plot in GeoLynx? Can I look up an address manually in GeoLynx?

The regional centerline file was developed to plot wireless 9-1-1 calls only. Due to accuracy issues and lack of address ranges, wireline 9-1-1 calls would most likely not plot accurately. That feature has been turned off in GeoLynx, but could be activated by special request by a PSAP Manager. Manual look-ups do work in GeoLynx, but again, may not be totally accurate.

Submit another question:

If your question is not answered above, please e-mail it to the 9-1-1 staff at e911@marc.org.