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Quantifying the Overlap between Cadastral and Visual Boundaries: A Case Study from Vanuatu

1
Department of Land Surveying and Geo-informatics, The Hong Kong Polytechnic University, Hong Kong 999077, China
2
Swinburne Business School, Swinburne University of Technology, Melbourne 3122, Australia
3
Faculty of Geo-information Science and Earth Observation (ITC), University of Twente, Enschede 7522 NB, The Netherlands
4
Netherlands Cadastre Land Registry and Mapping Agency, Kadaster International, Apeldoorn 7300GH, The Netherlands
5
CRC for Spatial Information, Carlton University, Victoria 3053, Australia
*
Author to whom correspondence should be addressed.
Urban Sci. 2017, 1(4), 32; https://doi.org/10.3390/urbansci1040032
Received: 31 October 2017 / Revised: 13 November 2017 / Accepted: 13 November 2017 / Published: 16 November 2017
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Abstract

Cadastres are argued as an essential tool to support land tenure security. Low cadastral coverage in developing countries creates a driver for innovative methods to expedite the mapping processes. As a human construct, the morphology of parcel boundaries is a diverse and complex topic: there are limited generalized rules for identifying, describing, and classifying them. This paper studies both the institutional and spatial aspects of cadastral boundaries, in order to provide more contemporary knowledge about the morphology of cadastral boundaries. This study inspects the relationship between topographic objects and general boundaries in the case context of Port Vila, Vanuatu. Statistical analysis reveals that under a dialectical error tolerance, large percentages of cadastral boundaries coincide with topographic objects. Specifically, in dense urban regions, road edges and building walls coincide with the majority of cadastral boundaries, with proportions of 49% and 35%, respectively. In suburban regions, the fence (25%), instead of buildings, plays an important role in marking a parcel border. The landscape is observed to have significant impact on parcel morphology. Therefore, constructing a map based on automatic or semi-automatic identification and classification of these features could significantly contribute to cadastral mapping in developing countries. View Full-Text
Keywords: cadastre; general boundary; boundary morphology; automated cadastral survey cadastre; general boundary; boundary morphology; automated cadastral survey
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Luo, X.; Bennett, R.; Koeva, M.; Lemmen, C.; Quadros, N. Quantifying the Overlap between Cadastral and Visual Boundaries: A Case Study from Vanuatu. Urban Sci. 2017, 1, 32.

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