County Line Crossing Tool
State and Regional County Overlays
One of the more tedious parts of developing route data for use in CQ/X
is the development of the Crossing file which is a text file listing
each planned county line crossing in the order of travel and in the
format
FromCounty-ToCounty HwyLabel Latitude
Longitude
with a separate line for each crossing. Since the items are
delimited by spaces there should be no spaces within
any of
the items. For example the county name Red River must be
entered
as RedRiver and a highway label should be written US183 rather
than US 183. Although this file is optional the benefit of providing it
is that it enables CQ/X to compute and provide timely updates of the
distance and time to the next county.
Each of the links below provides access to a Google map
containing overlays of all the counties in the state/region.
As
explained in the document Developing
Crossing Files Using Google Maps
it is possible to obtain the
lat/lon of a crossing point by a mouse click on the Google map
overlaid with the counties.
*Admitedly there's limited opportunity for land-based mobiling between counties in Hawaii but for completeness its included.
Note: Alan Sewell (N5NA) has developed a similar crossing
file tool
based on the Bing mapping application. One thing to be aware of
is that if you use the Bing application with Firefox the Copy
to
Clipboard button will be blocked by Firefox security. In that
case you will need to highlight the line of data and
copy/paste it
into the crossing file. Check out Alan's crossing tool.
Copyright: C.W. Sanders, NO5W
Last Updated: 09-July-2010