Representing Buildings for Visibility Analyses in Urban Spaces

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43310%2F18%3A43915175" target="_blank" >RIV/62156489:43310/18:43915175 - isvavai.cz</a>

Result on the web

<a href="https://dx.doi.org/10.1007/978-3-319-61297-3_2" target="_blank" >https://dx.doi.org/10.1007/978-3-319-61297-3_2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-319-61297-3_2" target="_blank" >10.1007/978-3-319-61297-3_2</a>

Result language

angličtina

Original language name

Representing Buildings for Visibility Analyses in Urban Spaces

Original language description

The availability of detailed and precise digital surface models based on LiDaR data allows accurate calculation of visibility analysis even in urban areas. Lately, the viewshed analysis, which is implemented in geographical information systems, is often used to determine the visibility of buildings or other structures in both natural and urban environments. Such utilization of viewshed tool, which is originally designed to assess visibility from point to its neighbourhood, however, brings issues regarding partial visibility of the target that are usually neglected. The core of the problem here is that the target building is often represented as a single point in the viewshed analysis. This simplification can lead to an incorrect assessment of the visibility as the specific point of the building can be invisible for the observer while other parts of the building are visible. To properly analyse visibility of a building it is necessary to consider partial visibility of the target. To allow the assessment of partial visibility more than one point that represents the building needs to be defined. In this contribution, the theoretical aspects of reverse viewshed, an area from which a target point is visible, are considered with a focus on the proper representation of target building in the reverse visibility analysis. A practical study of building visibility is conducted with the building represented as single and multiple points. The results are compared and the differences are explored.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

50701 - Cultural and economic geography

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Dynamics in GIscience

ISBN

978-3-319-61296-6

ISSN

1863-2246

e-ISSN

1863-2351

Number of pages

13

Pages from-to

17-29

Publisher name

Springer International Publishing AG

Place of publication

Cham

Event location

Ostrava

Event date

Mar 22, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000457178200002