Interestingly many windfarms in the North Sea report as AToNs.
navaid <- read.csv("C:/Users/X/Documents/AIS/navaids.csv", header=FALSE) ncount <- count(navaid$V5) antwort <- with (ncount,ncount[order(-freq),]) sichern <- head(antwort,50) write.csv(sichern, file = "C:/Users/X/Documents/AIS/navaidanswer.csv")
|Nav Aid Type||frequency|
|Light, without sectors||167|
|Fixed structure off shore||155|
|Starboard hand Mark||131|
|Port hand Mark||129|
|Beacon, Port hand||93|
|Beacon, Starboard hand||86|
|Light, with sectors||82|
|Beacon, Safe water||65|
|Cardinal Mark N||30|
|Beacon, Special mark||25|
|Cardinal Mark S||24|
|Cardinal Mark W||22|
|Leading Light Rear||22|
|Leading Light Front||19|
|Light Vessel / LANBY / Rigs||19|
|Cardinal Mark E||15|
|Beacon, Preferred Channel starboard hand||12|
|RACON (radar transponder marking a navigation hazard)||11|
|Beacon, Cardinal N||10|
|Beacon, Isolated danger||7|
|Beacon, Cardinal E||6|
|Beacon, Cardinal S||4|
|Beacon, Preferred Channel port hand||4|
|Spare, Reserved for future use.||4|
|Preferred Channel Port hand||3|
|Beacon, Cardinal W||2|
|Preferred Channel Starboard hand||2|
The most frequent AtoN type is a “Light, without sectors”.
The following map shows how the AtoNs are distributed globally according to what is fed through AISHUB.
These are the locations within Central Europe and the Brexit Island.
the following map shows the highest density of AtoNs between the Benelux nations and the island between the Continent and Ireland.