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Networks of Inequality: Access to Water in Roman Pompeii Cover

Networks of Inequality: Access to Water in Roman Pompeii

By: Samuli Simelius  
Open Access
|Jan 2024

Figures & Tables

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Figure 1

Map of Pompeii. The city is divided into nine Regiones. The city blocks are called insulae and are individually numbered. Each door in a block has its own number (or letter), and thus, for example, the address of the Casa di Sirico is VII,1,25/47 [Regio number, insula number, door number(s)]. The locations of the public buildings and fora are marked on the map. (The map was created by the author on the basis of a map created by Expeditio Pompeiana Universitatis Helsingiensis (EPUH)/Maija Holappa.)

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Figure 2

The interpretation of Pompeii’s street network used in this article. Projected streets with lighter grey. (The map was created by the author on the basis of a map created by EPUH/Maija Holappa).

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Figure 3

The thus far excavated public fountains of Pompeii according to Notarian (2023a: 88 Fig. 1). (The map was created by the author on the basis of a map created by EPUH/Maija Holappa).

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Figure 4

Locations of the houses connected to the piped water. (The map was created by the author on the basis of a map created by EPUH/Maija Holappa).

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Figure 5

The map with entrances to the Pompeian public and semi-public baths used in this examination. The entrance to the Suburban baths was limited to one, as it is the closest to any dwelling inside the city walls. (The map was created by the author on the basis of a map created by EPUH/Maija Holappa).

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Figure 6

Insula I,15 (location in Figure 1) with several types of lines (solid, dashed, dots) indicating possible separate housing units, yet they can possibly form one large unit. (The plan was created by the author on the basis of a PBMP map, Poehler & Stepanov 2017).

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Figure 7

The Casa di Sirico (VII,1,25/47, location in Figure 1) and possible ways to divide it as separate units. The Casa di Sirico is divided into two domestic units (VII,1,25 and VII,1,47), but they can be considered to form only one house. (The plan was created by the author on the basis of a PBMP map, Poehler & Stepanov 2017).

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Figure 8

Lorenz curve of round-trip time to nearest fountain from the dwellings. The formula is: Gini = a/(a + b).

Table 1

Various inhabitant scenarios of Pompeii, and times to visit the baths according to these scenarios. (The population estimations are based on Flohr 2017, Osanna 2018 and Simelius 2022b).

INHABITANTS: POMPEIIINHABITANTS: EXCAVATED AREATIMES TO VISIT BATHS PER INHABITANT (EXCAVATED AREA)TIMES TO VISIT BATHS/INHABITANT (SIMULATED WITH ONE UNEXCAVATED PUBLIC BATH AND TWO SEMI-PUBLIC)
75005500Once a weekEvery 5–7 days
135008900Every 9–12 daysEvery 9–13 days
1650010900Every 11–15 daysEvery 11–15 days
3000019800Every 20–27 daysEvery 20–28 days
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Figure 9

Lorenz curve of daily time collecting water per household, according to Notarian’s (2023b) maximum scenario, 13,500 inhabitants.

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Figure 10

Lorenz curve of daily time collecting water per household, according to the scenario 16,500 inhabitants living in Pompeii.

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Figure 11

Lorenz curve of daily time collecting water per household, according to the scenario of 30,000 inhabitants living in Pompeii.

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Figure 12

Lorenz curve of daily time collecting water per household, according to the scenario 30,000 inhabitants living in Pompeii and including the piped water network.

Table 2

Various scenarios of calculating time used for fetching water and their Gini coefficients.

PUBLIC FOUNTAINSPIPED WATER (MIN.)PIPED WATER (MAX.)
One trip Time0.331
Daily time (Notarian min.)0.5250.5530.565
Daily time (Notarian max.)0.5380.5680.580
Daily time (16 000 inhabitants/large vessels)0.5270.5560.568
Daily time (30 000 inhabitants/small vessel)0.5380.5660.578
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Figure 13

Lorenz curve of time to walk to the public baths per household.

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Figure 14

Lorenz curve of time to walk to the baths per household, including the private houses with baths.

Table 3

Various scenarios of calculating walking time from dwellings to the closest bath and their Gini coefficients.

ONE TRIP TIME
Including only public baths0.374
Including also semi-public baths0.375
Including also private baths0.392
Including only public and private baths (excluding semi-private)0.392
Including only public baths (only certain houses)0.362
Possible public bath in Regio I (certain houses)0.351
Including semi-public baths and a possible bath in Regio I (certain houses)0.368
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Figure 15

Lorenz curve of weekly walk time relating to access to water, according to the scenario of 16,500 inhabitants in Pompeii.

Table 4

The Gini coefficients of the weekly water consumptions of four different population scenarios.

POPULATIONWEEKLY VISIT TO BATHSTRIPS TO FOUNTAIN/WEEKGINI
7500180.514
135000.58.50.578
165000.258.750.565
30000090.579
DOI: https://doi.org/10.5334/jcaa.116 | Journal eISSN: 2514-8362
Language: English
Submitted on: Jun 26, 2023
Accepted on: Nov 29, 2023
Published on: Jan 15, 2024
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2024 Samuli Simelius, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.