A Method for the Automated Construction of 3D Models of Cities and Neighborhoods from Official Cadaster Data for Solar Analysis

Autor: Marta Monzón-Chavarrías, Belinda López-Mesa, Carlos Beltran-Velamazan
Rok vydání: 2021
Předmět:
3D city models
Computer science
Modelado tridimensional
020209 energy
Cadastre
AutoLISP algorithm
2106.01 Energía Solar
Geography
Planning and Development
TJ807-830
3d model
02 engineering and technology
Pedestrian
1203.09 Diseño Con Ayuda del Ordenador
010501 environmental sciences
Management
Monitoring
Policy and Law
TD194-195
Time saving
01 natural sciences
Renewable energy sources
Urbanismo
Energía solar
city 3D models
GIS cadaster data
rooftop solar potential
pedestrian areas solar access
0202 electrical engineering
electronic engineering
information engineering
GE1-350
1203.26 Simulación
0105 earth and related environmental sciences
Sistema de Información Geográfica (GIS)
Environmental effects of industries and plants
Energía solar fotovoltáica
Renewable Energy
Sustainability and the Environment
Elevation
Solar potential
3322.05 Fuentes no Convencionales de Energía
INSPIRE cadaster
Environmental sciences
Solar access
Placas fotovoltaicas
Información catastral
5404.01 Geografía Urbana
2505.08 Geografía Topográfica
Cartography
Zdroj: Sustainability, Vol 13, Iss 6028, p 6028 (2021)
Sustainability
Volume 13
Issue 11
ISSN: 2071-1050
DOI: 10.3390/su13116028
Popis: 3D city models are a useful tool to analyze the solar potential of neighborhoods and cities. These models are built from buildings footprints and elevation measurements. Footprints are widely available, but elevation datasets remain expensive and time-consuming to acquire. Our hypothesis is that the GIS cadastral data can be used to build a 3D model automatically, so that generating complete cities 3D models can be done in a short time with already available data. We propose a method for the automatic construction of 3D models of cities and neighborhoods from 2D cadastral data and study their usefulness for solar analysis by comparing the results with those from a hand-built model. The results show that the accuracy in evaluating solar access on pedestrian areas and solar potential on rooftops with the automatic method is close to that from the hand-built model with slight differences of 3.4% and 2.2%, respectively. On the other hand, time saving with the automatic models is significant. A neighborhood of 400,000 m2 can be built up in 30 min, 50 times faster than by hand, and an entire city of 967 km2 can be built in 8.5 h. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Databáze: OpenAIRE
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