Sökning: "SRA - Transport"

Visar resultat 6 - 10 av 28 avhandlingar innehållade orden SRA - Transport.

  1. 6. Relevance and Reliability of Area-Wide Congestion Performance Measures in Road Networks

    Författare :Carlos Moran; Harilaos Koutsopoulos; Constantinos Antoniou; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Congestion Performance Measures; Reliability; Relevance; Road networks; SRA - Transport; SRA - Transport;

    Sammanfattning : For operational and planning purposes it is important to observe, predict and monitor the traffic performance of congested urban road links and networks. This monitoring effort describes the traffic conditions in road networks using congestion performance measures. LÄS MER

  3. 7. Path Inference of Sparse GPS Probes for Urban Networks : Methods and Applications

    Författare :Mahmood Rahmani; Harilaos Koutsopoulos; Clas Rydergren; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; map-matching; path inference; sparse GPS probes; FCD; urban area; digital road network; Stockholm; taxi; iMobility Lab; MapViz; travel time; SRA - Transport; SRA - Transport;

    Sammanfattning : The application of GPS probes in traffic management is growing rapidly as the required data collection infrastructure is increasingly in place in urban areas with significant number of mobile sensors moving around covering expansive areas of the road network. Most travelers carry with them at least one device with a built-in GPS receiver. LÄS MER

  4. 8. Mobile Phone-based Vehicle Positioning and Tracking and Its Application in Urban Traffic State Estimation

    Författare :Sha Tao; Ana Rusu; Elnaggar Mohammed Ismail; Saul Rodriguez; Wilco Burghout; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SRA - ICT; SRA - Informations- och kommunikationsteknik; SRA - Transport; SRA - Transport;

    Sammanfattning : Enabling the positioning and tracking of mobile phones has emerged as a key facility of existing and future generation mobile communication systems. This feature provides opportunities for many value added location-based services and systems. LÄS MER

  5. 9. A Time Perspective on Gendered Travel Differences in Sweden

    Författare :Kandice Fults; Anders Karlström; Maria Börjesson; Merritt Polk; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gendered Travel Behavior; Probit Model; Travel Patterns; Civil engineering and architecture; Samhällsbyggnadsteknik och arkitektur; SRA - Transport; SRA - Transport;

    Sammanfattning : Gender differences in travel behaviors are relevant in addressing equity needs and a variety of policy issues.  In order to effectively design gender equity policy, whether transport-related or other, one must first understand the differences found in travel behaviors between genders and what the implications of those differences are. LÄS MER

  7. 10. Electron and Spin Transport in Graphene-Based Nanodevices

    Författare :Xiao-Fei LI; Yi Luo; Rajeev Ahuja; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; SRA - Transport; SRA - Transport;

    Sammanfattning : This thesis is devoted to the multi-scale modeling of electron and spin transport in graphene-based nanodevices. Several devices with fascinating structures and attractive properties have been designed by means of state-of-the-art computational methods, which include ab-initio molecular dynamics (MD) simulations for the geometry, density functional theory (DFT) for the electronic structure, and non-equilibrium Green’s functions (NEGF) for carriers transport properties. LÄS MER