Last week, the Transportation Security Administration (TSA) published their 2016 Year in Review, documenting 3,391 guns discovered in carry-on bags at 238 airports. The top 10 airports for firearm discoveries accounted for nearly one-third (1,115) of the total.
Today's Featured Map shows the ten 10 airports at which the TSA found firearms in carry-on baggage during 2016. The map also introduces a new feature that allows a data value to be specified for a point with the area of the associated symbol being scaled to the value. In this example, Atlanta had the most firearm discoveries (198) while Salt Lake City was tenth with 75. These values appear in the path like this:
198@ATL,75@SLCWith the symbol specified as a disc 20 pixels in diameter, the symbol for ATL is the full 20 pixels while the one for SLC is scaled to cover 38% of the area or 8 pixels. Several similar maps were used in Featured Maps in 2010 covering the hubs involved in airline mergers but these used precalculated symbol sizes. The "Southwest and AirTran" map using the new feature looks the same but is easier to create.
Information on this site may not be accurate or current and is not valid for flight planning or navigation. No warranty of fitness for any purpose is made or implied. Flight planning and navigation should only be done using official charts.
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Karl L. Swartz.
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