ABSTRACT
CONTENTS Introduction............................................................................................ 268 Temporal Development of Values at Risk............................................... 270
Long-Term Development of Values at Risk ................................... 271 Short-Term Development of Values at Risk................................... 273
Multi-temporal Approach for an Effective Risk Reduction...................... 274 Discussion............................................................................................... 276 References ............................................................................................... 277
Introduction The historical shift of a traditionally agricultural society to a service industry-and leisure-oriented society led to socioeconomic development in mountain environments and foreland regions. This shift is reflected by an increasing use of those areas for settlement, industry, and recreation. On the other hand, areas suitable for land development are relatively scarce in the Inner Alpine valleys, e.g., in Austria, only about 20 percent of the whole area is appropriate for development activities [1]. Moreover, those areas are located line-shaped along the valley bottoms. Consequently, a conflict between human requirements on the one hand and naturally determined conditions on the other hand results. Due to an increasing concentration of tangible and intangible assets and to an increasing number of persons exposed to natural processes, which in the case of harm to human life or property are considered as natural hazards, there is an emerging need for the consideration of risk in land-use development.
