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Research draft

beacon

vr.tr.beacon · PHY.BLT

Let an agent handle beacons by type, location, characteristics and navigation rules, citing official charts and notices.

Thing Registry Physical world and living systems

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent handle beacons by type, location, characteristics and navigation rules, citing official charts and notices.

A fixed, conspicuous structure or device that marks a location for navigation or warning, such as day beacons, lit beacons, radio beacons, railway balises and navigation marks at sea.

What it is for: Guiding navigation and marking hazards.

It can be identify a beacon type and meaning; read light characteristics on charts; check notices of defects; report damaged aids to navigation.

Distinguishing features

Fixed navigation mark

Visual, light or radio

Standardised meanings

Maintained by authorities

What it looks like

Towers, poles, topmarks, lights or trackside devices.

How it is recognised

Topmarks and colours per IALA system

Light characteristics such as Fl(2) 10s

Buoys float, beacons are fixed

Related models

is a kind of - category

aid to navigation

is contrasted with - floating mark

buoy

is related to - larger structure

lighthouse

is shown on - publication

nautical chart

In practice

Families and kinds

day beacons

lit beacons

radio beacons

railway balises

historical fire beacons

Standards and regulation

IALA Maritime Buoyage System

Notices to Mariners

ETCS balise specifications

Failure modes and hazards

Unlit or damaged beacons

Using outdated charts

Also called

day beaconlit beaconnavigation beaconbalisespar buoyspecial markShip traffic signalscardinal markoverhead wire markersafe water markchannel linelight stationisotropic beaconLeitbakeIALA Maritime Buoyage Systemweather beaconpower line markerlightvessel station

Where this came from

wikidata · CC0 1.0

Also registered as vr.tr.beacon

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Identity Which beacon.

Charts identify.

Type

Kind of beacon.

Type

Beacon type.

  1. What type of beacon is it and what does it mark? definition
  2. Which IALA region applies? provenance

Location

Position.

Location

Position.

  1. Where is it, according to the official chart or light list? provenance
  2. Has it moved? provenance
Signal Characteristics.

Signals follow standards.

Light

Characteristic.

Light

Light characteristic.

  1. What is its light characteristic and range? measurement
  2. What does it mean? definition

Topmark

Shape and colour.

Topmark

Topmark.

  1. What do its colours and topmark indicate? definition
  2. Which side should it be passed? action
Status Defects.

Aids can fail.

Notices

Defects.

Notices

Notices.

  1. Is there a current notice about this beacon? provenance
  2. Who issues notices here? provenance

Report

Damage.

Report

Reporting damage.

  1. How can a damaged or unlit beacon be reported? action
  2. Which authority maintains it? provenance
Senses Other beacons.

Beacon has other senses.

Railway

Balise.

Railway

Railway sense.

  1. Is a railway balise meant? boundary
  2. Which entry fits? action

Personal

Emergency beacons.

Personal

Emergency beacons.

  1. Is a personal locator or emergency beacon meant? boundary
  2. How is it registered? provenance

What the second pass must settle

  • Should beacon types be separate entries?
  • How should light lists be linked?
  • How should historical fire beacons be handled?