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The purpose of this page is to enable a person with little or no knowledge of the fundamentals of leading line design to make use of a computer design program for leading lines. The computer program is presented as an Excel spreadsheet. Recommendation E-112-1 provides all the formulae and calculation method used in the program. Guideline 1023 provides additional information on the design of leading lights AtoN.

Guideline 1023

IALA Recommendation E-112-1 on Leading Lights

Recommendation E-112-2 Spreadsheet