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The Population UWP code is an indicator of the world's population of Sophonts.

  • This figure represents the exponent (number of zeros) which follow the first population digit (this digit is outlined in the extended data).
  • High Population worlds are generally shown in all caps (e.g. ROUP) on sector/subsector maps.

Library Data Referral Tree[edit]

Please refer to the following AAB Library Data for more information:

Description (Specifications)[edit]

Following the example from the UWP page Roup has a population code of 9 and a population multiplier of 3. Thus the population is roughly 3x109 people or 3 billion (3,000,000,000 - three followed by 9 zeros). The actual population will be between 2.5 and 3.5 billion.

  • High Population worlds are generally shown in all caps (e.g. ROUP) on sector/subsector maps.
  • Population codes 0 and 1 are special cases, as it is important to distinguish low population from literally zero population. Thus, the entire 1-99 range goes in population code 1.
Population Codes
Code Description Population (where P is the population multiplier)
0 None 0
1 Low 1 to 99 (P0)
2 Low 100 to 999 (P00)
3 Low 1,000 to 9,999 (P,000)
4 Moderate 10,000 to 99,999 (P0,000)
5 Moderate 100,000 to 999,999 (P00,000)
6 Moderate 1 Million to just under 10 Million (P,000,000)
7 Moderate 10 Million to just under 100 Million (P0,000,000)
8 Moderate 100 Million to just under 1 Billion (P00,000,000)
9 High 1 Billion to just under 10 Billion (P,000,000,000)
A High 10 Billion to just under 100 Billion (P0,000,000,000)
B High 100 Billion to just under 1 Trillion (P00,000,000,000)
C Very High 1 Trillion to just under 10 Trillion (P,000,000,000,000)

History & Background (Dossier)[edit]

In addition, the Population Multiplier digit of the "PBG" UWP element must also be zero to qualify for the Ba trade classification.[1]

Barren Worlds[edit]

"Barren" worlds are those worlds with a Population UWP code of 0, Government code 0, Law level code 0 and a Tech Level of 0. Worlds with such elements in the UWP qualify for the Ba trade classification.

References & Contributors (Sources)[edit]

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Far Future Enterprises or by permission of the author. The page history lists all of the contributions.
  1. According to Marc Miller.