Application of Lidar Data and 3D-City Models in Visual Impact Simulations of Tall Buildings

Abstract

Commission VI, WG VI/4KEY WORDS: Tall Buildings, 3D Isovists, Visual Impact, LIDAR, 3D City Models, Computational Urban Analysis. ABSTRACT:The paper examines possibilities and limitations of application of Lidar data and digital 3D-city models to provide specialist urban analyses of tall buildings. The location and height of tall buildings is a subject of discussions, conflicts and controversies in many cities. The most important aspect is the visual influence of tall buildings to the city landscape, significant panoramas and other strategic city views. It is an actual issue in contemporary town planning worldwide. Over 50% of high-rise buildings on Earth were built in last 15 years. Tall buildings may be a threat especially for historically developed cities -typical for Europe. Contemporary Earth observation, more and more available Lidar scanning and 3D city models are a new tool for more accurate urban analysis of the tall buildings impact. The article presents appropriate simulation techniques, general assumption of geometric and computational algorithms -available methodologies and individual methods develop by author. The goal is to develop the geometric computation methods for GIS representation of the visual impact of a selected tall building to the structure of large city. In reference to this, the article introduce a Visual Impact Size method (VIS). Presented analyses were developed by application of airborne Lidar / DSM model and more processed models (like CityGML), containing the geometry and it's semantics. Included simulations were carried out on an example of the agglomeration of Berlin.

A method for the aggregation of spatial data in the study of urban structure on the example of trends in the localisation of tall buildings in Wrocław

“…However, the major issues are to use the new horizons in planning smart cities, including LiDAR technology (Dwivedi, Uniyal, Mohan, 2015: 40-50) and set general principles for shaping the spatial policy of the cities. Consequently, it can be supplemented with detailed research relating to individual buildings (Czyńska, 2015(Czyńska, : 1359(Czyńska, -1366Czyńska, Rubinowicz, 2017: 87-98).…”

“…An increasing amount of research is being conducted with regard to city landscape analysis, the localising of tall buildings and determining strategic views in the city, which should be subject to special protection. The usefulness of this data is very high and the detail of its processing varies depending upon analytical needs (Czyńska, 2015(Czyńska, : 1359(Czyńska, -1366Rubinowicz, Czyńska, 2015: 1395-1402.…”

The Virtual 3D Representation of Old Railroad and Street of Jingtong

“…GIS technology is very helpful in the cognition and interpretation of the urban fabric status [14]. Now Unmanned Aerial Vehicles (UAVs) or aerial LIDAR (Light Detection and Ranging) can add a more detailed description of as-built geometric information [3] with different levels of accuracy. The vast amount of data actually opens up opportunities in various fields of study [11], especially when showing the complexity of city objects and their interrelations [6].…”

Near Real-Time Semantic View Analysis of 3D City Models in Web Browser

“…The analyses that utilize 3D city models may rely solely on their three-dimensional geometry or complement this with the semantic information commonly included in these models. For example, the isovist analysis shown in [10] is mostly reliant on geometry, whereas the energy efficiency application in [8] also utilizes the semantic information of model objects. By integrating additional data sets to the 3D city model, analyses that combine the model geometry with various properties also become feasible (e.g., [5]).…”