id
	11936
Url
	https://chloe.cnr.it/s/BiDiAr/item/11936
Resource template
	Academic Article
Resource class
	bibo:AcademicArticle
Title
	TRANSIT: a GIS toolbox for estimating the duration of ancient sail-powered navigation
Creator
	Alberti, Gianmarco
Date
	2018
Language
	eng
Abstract
	Cost-surface analysis in Geographic Information System (GIS) environment has been less frequently used in the study of ancient sail navigation than in other studies of the human past. Navigation cost-surface analysis entails the use of GIS tools that are versatile but not very easy to grasp and to put to work. This article describes an ArcGIS toolbox built to facilitate cost-surface analysis of ancient sail navigation. It estimates the navigation time from a start location, considering parameters relevant for the generation of an accumulated anisotropic cost-surface, automating the complex workflow required to meaningfully pre- and post-process the data. Acknowledging the limitations inherent to the tool, and to the modeling of a complex matter such as sail navigation, the toolbox is first described and then used in a worked example. Historically recorded voyages in the Mediterranean during classical antiquity are compared to estimated durations generated by the toolbox. In spite of structural and expected limitations, the results indicate that the proposed toolbox may produce reasonable estimates. These should be thought of as values gravitating around, not matching, likely past durations. The estimated values may prove useful as an indication of the order of magnitude of past voyages’ duration, and as frame of reference in measuring ancient maritime space through time.
Is Part Of
	Cartography and Geographic Information Science
Cited by
	11058
Doi
	https://doi.org/10.1080/15230406.2017.1403376
Issn
	1523-0406
Issue
	6
Pages
	510-528
Short title
	TRANSIT
Volume
	45
Homepage
	https://www.zotero.org/groups/5293298/bidiar/items/XI7TNUQE/item-list

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