Sökning: "Traffic flow"

Visar resultat 16 - 20 av 155 avhandlingar innehållade orden Traffic flow.

1. 16. Valuation and pricing of traffic safety

   Författare :Gunnar Lindberg; Lars Hultkrantz; Olof Johansson-Stenman; Örebro universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Value of statistical life; Marginal cost pricing; External cost; Risk elasticity; Pricing policies; Traffic accidents; Railway accidents; Heavy goods vehicle accidents; Economics; Nationalekonomi; Economics; Nationalekonomi;

   Sammanfattning : This thesis consists of six essays covering the topic of valuation and pricing of accidents. In the first essay a theory of the external marginal cost of accidents is presented. The external cost is dependent on the value of statistical life, the proportion internal cost and the so called risk elasticity, i.e. LÄS MER

3. 17. Convex multicommodity flow problems : a bidual approach

   Författare :Kristoffer Hägglöf; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

   Sammanfattning : The topic of this dissertation, within the subfield of mathematics known as optimization, is the development of a new dual ascent method for convex multicommodity flow problems. Convex multicommodity flow problems arize in many different routing problems such as the design of packet switched computer networks and the computation of traffic network equilibria. LÄS MER

4. 18. Safety within the Vessel Traffic Service (VTS) Domain. Understanding the role of the VTS for safety within maritime traffic management

   Författare :Gesa Praetorius; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; maritime safety; safety construction; traffic management; Vessel Traffic Service VTS ;

   Sammanfattning : Vessel Traffic Service (VTS) is a shore-sided service implemented to promote the safety of navigation, safety of life at sea, and the protection of the marine environment. Its purpose is to work for safe and fluent traffic movements within a determined area, a VTS area. LÄS MER

5. 19. Background road traffic noise synthesis

   Författare :Georgios Zachos; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; background traffic noise synthesis; auralisation; urban sound planning;

   Sammanfattning : As urban planning evolves along with societal life, new requirements that should be met are rising. One of those, is the inclusion of acoustic quality in urban environments, before, during, or after a planning process. To address this for a yet to be built area, metrics are needed that try to quantify acoustic quality. LÄS MER

7. 20. On the Treatment of Flow in Traffic Safety Analysis, - a non-parametric approach applied on vulnerable road users

   Författare :Lars Ekman; Trafik och väg; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Social sciences; Samhällsvetenskaper; Teknik; Technological sciences; safety performance function; accuracy; simulation; bootstrap; bicyclist; pedestrian; risk; Traffic Safety; accident rate;

   Sammanfattning : The treatment of flow in the area of traffic safety has a long tradition. The influence flow has on the number of accidents is, however, often considered so obvious that it tends to be trivial. In this thesis I can show that the relation between flow and accidents holds interesting information. LÄS MER