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.
Highlights
In more developed contexts, cadastres are commonly argued as a key component in guaranteeing land tenure security [1]
By investigating the morphology of visible parcel boundaries in a developing country, this paper aims to provide supportive evidence for the development of automated methods to generate cadastral boundaries: define what the targets objects for automated cadastral survey are, describe the cadastral boundary morphology, and quantify the possibility of delineating cadastral boundary from physical land objects
In the dense urban region where more major roads exist (Figure 4a), cadastral boundary segments are coincided with roadside even with a 1 m offset
Summary
Cadastres are commonly argued as a key component in guaranteeing land tenure security [1]. Conventional ground-based cadastral surveying and mapping methodologies are time consuming and labour intensive Continuing to use these approaches, it is suggested, would mean that many countries would not experience anything near cadastral completeness for decades or even centuries [3]. Convention suggests a cadastre is a comprehensive record of the real property’s boundary and ownership [15]—and is a key component of a broader land administration system that captures and maintains changes about people-to-land relationships [16]. It is often described as “official”, and may record information about ownership, value, use, location, and dimensions [1]. Multipurpose cadastres emerge as another alternative, at least in Anglophone literature post-1970, the concept has its roots in Germanic registers that were developed in the 1800s [16]
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