Sökning: "Congestion Performance Measures"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Congestion Performance Measures.

  1. 1. Framework for Estimating Congestion performance measures : from data collection to reliability analysis: case study of Stockholm

    Författare :Carlos A. Morán Toledo; Karl-Lennart Bång; Muriel Beser Hugosson; KTH; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : For operational and planning purposes it is important to observe and predict the traffic performance of congested urban road links and networks. Congestion can be defined as traffic conditions caused by a downstream bottleneck or excess in travel time from what is incurred during light or free-flow travel conditions. LÄS MER

  3. 2. 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

  4. 3. Modelling and Appraisal in Congested Transport Networks

    Författare :Jens West; Maria Börjesson; Oded Cats; Leonid Engelsson; Giulio Cantarella; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transport modelling; Transit Assignment; Appraisal; Congestion; Crowding; Cost-benefit analysis; Value of time; Congestion charge; Dynamic traffic assignment; Transportvetenskap; Transport Science;

    Sammanfattning : Appraisal methodologies for congestion mitigation projects are relatively less well developed compared to methodologies for projects reducing free flow travel times. For instance, static assignment models are incapable of representing the build-up and dissipation of traffic queues, or capturing the experienced crowding caused by uneven on-board passenger loads. LÄS MER

  5. 4. Congestion Effects in Transport Modelling and Forecasting

    Författare :Jens West; Maria Börjesson; Carlo Giamoco Prato; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transportvetenskap; Transport Science;

    Sammanfattning : Transport investments and policies are increasingly turned towards dealing with transport congestion rather than with shortening the potential free flow travel time. However, appraisal methodologies for projects meant to reduce congestion are relatively less well developed compared to methodologies for projects aiming to reduce travel times. LÄS MER

  7. 5. Capacity utilisation in short sea shipping

    Författare :Linda Styhre; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sailing schedule; unutilised capacity; improvement measures; Liner short sea shipping; vessel capacity utilisation; route characteristics; strategies;

    Sammanfattning : Shipping is a capital-intensive industry and is characterised by high fixed costs and economies of scale. Trade imbalances and demand variations, market fluctuations and customer demands for high frequency create a situation where shipping companies tend to operate with a high level of unutilised vessel capacity. LÄS MER