Abstract

Project risk evaluation complexity demands modern information systems that increase objectivity and are more visual, intuitive, and flexible. Thousands of construction projects have been analyzed to define a risk system that fulfills these requirements and uses a new kind of risk indicator: The Visibility factor. This indicator makes it possible to get quantitative values for any risk and to summarize risk scenarios. The system is analytical and the result is visual in order to allow the risk level to be identified at any stage, making it much easier for decision-makers to determine the best possible option. Risk data is collected via multiple choice questionnaires, built over a template, and the sections are weighted based on the project characteristics and its circumstances. This system can be used in any industry by modifying the questionnaires and it has been tested in a Spanish IBEX-35 construction company.

Abstract

International audience; With the predicted growth of air traffic, traffic flow managers need new tools to access information to support their decision making processes. Recent progress with information visualization tools enables users to explore large data sets and extract decisive knowledge. Their advantages for air traffic applications are presented in this paper. They can provide high level information to aggregate trajectories. With constant feedback due to human perception, a flow model of the airspace, reflecting its intrinsic structure, is elaborated and can be used for further research.