Sökning: "rail traffic"

Visar resultat 1 - 5 av 81 avhandlingar innehållade orden rail traffic.

  1. 1. Simulation of rail traffic : applications with timetable construction and delay modelling

    Författare :Hans Sipilä; Bo-Lennart Nelldal; Anders Holst; Jan Ekman; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis covers both applications where simulation is used on parts of the Swedish rail networks and running time calculations for future high-speed trains with top speed improvements on existing lines. Calculations are part of a subproject within the Green Train research program (Gröna tåget). LÄS MER

  3. 2. Simulation of rail traffic : Methods for timetable construction,delay modeling and infrastructure evaluation

    Författare :Hans Sipilä; Bo-Lennart Nelldal; Thomas Siefer; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Järnvägsgruppen - Kapacitet; Järnvägsgruppen - Kapacitet; Transportvetenskap; Transport Science;

    Sammanfattning : This thesis covers applications and proposes methods for using simulation in a more effectiveway and also in a wider context than normally used. One of the proposed methods deals withdelay modeling that can be used in a calibration process. LÄS MER

  4. 3. The Internalization of External Effects in Swedish Transport Policy - A Comparison Between Road and Rail Traffic

    Författare :Lars Hansson; Internationella miljöinstitutet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Commercial and industrial economics; rail traffic; road traffic; transport policy; internalization; External effects; pricing-relevant costs; Industriell ekonomi;

    Sammanfattning : Transport is a key factor for economic growth. It has enabled both the economic scale of production and an increase in competition. No one can question this role of transportation. There is, however, a back-side to the coin: the environmental challenge. LÄS MER

  5. 4. Responding to Terrorist Attacks on Rail Bound Traffic : Challenges for Inter-organizational Collaboration

    Författare :Veronica Strandh; Jan Engberg; Helena Lindholm Schultz; Umeå universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; crisis management; terrorism; rail bound traffic; interorganizational collaboration; disaster medicine; scenario-based planning; preparedness; response; security;

    Sammanfattning : Contemporary terrorism is becoming increasingly indiscriminate, and rail bound traffic appears to be vulnerable and at high risk for terrorist attacks. An attack targeting a train or subway system can have enormous implications, both in terms of human suffering and long-term societal consequences. LÄS MER

  7. 5. Analysis of traffic load effects an railway bridges

    Författare :Gerard James; KTH; []
    Nyckelord :bridge; rail; traffic load. Load effect. Dynamic amplification factor; extreme value theor; peaks-over-threshold;

    Sammanfattning : The work presented in this thesis studies the load and loadeffects of traffic loads on railway bridges. The increasedknowledge of the traffic loads, simulated using fieldmeasurements of actual trains, are employed in a reliabilityanalysis in an attempt at upgrading existing railwaybridges. LÄS MER