Recently a great deal of research into construction IT has been completed, and this is ongoing to improve efficiency and quality in the construction sector. The new innovation of 3D laser scanning is aimed at being used to improve the efficiency and quality of construction projects, such as maintenance of buildings or group of buildings that are going to be renovated for new services. The 3D la...

As Computer Aided Design has developed since the 1970s, it has enabled more complex building forms to be designed, drawn and constructed. The availability of complex curved surfaces has allowed architects, in particular, to design more expressive buildings. The question must now be asked whether these have added value or whether they are only relevant to iconic buildings, of which only a few ju...

Evidence is accumulating that indicates air quality problems in residential and commercial buildings are nearly always associated with inadequacies in building design and methods of operation. Thus, the very systems depended on to control the indoor environment can become indirect sources of contamination if diligence is not exercised at each stage of a building's life: a) planning and design, ...

Apartment owners in The Netherlands are struggling to successfully reduce the energy consumption of their apartment buildings. The energetic quality of especially the apartment buildings that are managed by Associations of Owners is lagging. A literature study and interviews with experts are used to identify two sets of issues that currently withhold Associations of Owners from improving the en...

In this paper, techniques for an automated extraction, classification and modelling of 3D objects will be presented. They use solely laserscanning derived digital elevation models as data basis. Trees, buildings and terrain objects are detected and classified. Firstly, a special region growing algorithm segments 3D objects on the terrain surface. Object specific features are extracted inside th...

An efficient urban energy system could be a highly diverse and well-integrated structure of buildings and systems. Such a structure needs an energy management framework capable of providing information on appropriate energy saving measures at any scale of implementation. This paper proposes a method to design such a framework. For quality assurance, a method to deal with the uncertainty in buil...