For example, both these countries have declined to be the signatories of the 1997 UN Convention on the Law of the Non-Navigational Uses of International Watercourses UNCIWW).
The Flexible Floating Collision-Prevention System (FFCPS), used to prevent collision between uncontrolled ships and non-navigational bridges, comprises cable chains, floating structures and mooring system.
According to experts, the construction of the Dam (Tipaimukh) in a geologically sensitive zone, adjacent to the Taithu Faultline, gives rise to grave concerns about earthquake (see M. S. Siddiqui, "Non-navigational use of international water courses: Why delay ratification of the UN Convention?", The Financial Express, 19 June 2014, Dhaka).
In 2000, the light was relit as a non-navigational aid.
A successful restoration effort was completed in 2009 and a non-navigational light was activated in 2012.
A non-navigational 4-second flashing green light was installed in the lighthouse on February 13 , 2012
The island is home to the Great Captain Island Light, a 19th-century lighthouse that was restored in 2009 and relit as a non-navigational aid in 2012.
Used in conjunction with a simple curation interface, the PaperBrowser tool improved article navigational efficiency (the number of navigation events needed before the data are extracted) by ∼58% and provided curators with enhanced utility (the number of non-navigated events needed outside of the highlighted areas) by over 74% compared to using the 'find' function in a PDF viewer.
Level 3 data are global-grid data in the regular longitude latitude coordinate system, produced from the contents of Level 2. Non-negligible errors in navigational data and instrumental alignment can result in serious errors in the geometry calculations.
The first four months of field usability were intended to identify and correct minor errors in the software source code, including navigational difficulties, non-functional URL address links, and the improvement of a consistent visual interface throughout the program.
The researchers arrived at their conclusion by giving 26 video game players and 33 non-video game players similar navigational tasks with different solutions.
