Sökning: "level crossings"
Visar resultat 1 - 5 av 25 avhandlingar innehållade orden level crossings.
1. Safety at Rail-Road Level Crossings
Sammanfattning : Safety related to traffic at rail/road level crossings has long been a major issue for rail operators all over the world. Eliminating these level crossings entirely would be a desirable solution. However converting them into separate types is very expensive and not reasonable in many cases, e.g. LÄS MER
2. Crossings and maxima in Gaussian fields and seas
Sammanfattning : In this thesis the focus is on crossing points in random fields and the probability distributions of various crossing variables in different applications. The crossing points are generalisations to random fields of points of level crossings by stochastic processes. LÄS MER
3. Towards an efficient use of infrastructure and the built environment : Essays in transport and housing economics
Sammanfattning : All four papers in the thesis share a common theme: how to achieve an efficient use of infrastructure and the built environment. In the presence of externalities, pricing according to the (short-run) marginal cost is one answer on how this can be achieved and the first two papers estimates parts of the marginal cost of traffic. LÄS MER
4. Applications of Rice's formula in oceanographic and environmental problems
Sammanfattning : This thesis is based on five papers (A-E), all treating various applications of Rice's formula. The areas of application are oceanographic and environmental problems. The first three papers treat properties of encountering waves, that is, waves that a ship encounters while sailing on the ocean. LÄS MER
5. Modelling Sea Surface Dynamics Using Crossing Distributions
Sammanfattning : The thesis deals mainly with modelling sea surface dynamics. We consider two different scales. LÄS MER