Sökning: "Traffic models"

Visar resultat 11 - 15 av 389 avhandlingar innehållade orden Traffic models.

1. 11. Computational interaction models for automated vehicles and cyclists

   Författare :Ali Mohammadi; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; automated vehicles; vulnerable road users; computational models; driver models; active safety systems; cyclists’ interaction;

   Sammanfattning : Cyclists’ safety is crucial for a sustainable transport system. Cyclists are considered vulnerable road users because they are not protected by a physical compartment around them. In recent years, passenger car occupants’ share of fatalities has been decreasing, but that of cyclists has actually increased. LÄS MER

3. 12. Towards microscopic models for bicycle traffic simulation

   Författare :Guillermo Pérez Castro; Johan Olstam; Fredrik Johansson; Heather Kaths; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : As bicycling becomes an integral part of sustainable mobility, it becomes essential to enhance planning strategies that ensure bicycling as an efficient mode of transport. While traffic simulation has been extensively utilized for traffic planning of various modes of transport, this type of modeling support is largely lacking in the planning of bicycle traffic. LÄS MER

4. 13. Hierarchical Modeling of Road Traffic Networks

   Författare :Eugene Merritt; KTH; []
   Nyckelord :traffic simulation models; calibration and validation; field data collection;

   Sammanfattning : The main objective of the thesis was to develop and applymethodologies for analysis and evaluation of the applicabilityof different types of road traffic simulation models for urbantraffic conditions. For this purpose a number of models ofmacroscopic, mesoscopic and microscopic type were applied,calibrated, validated and analyzed using extensive field datacollection to obtain traffic flow, travel time and queue-lengthdata for major road networks in Stockholm and Uppsala. LÄS MER

5. 14. Automated Traffic Time Series Prediction

   Författare :Bin Sun; Wei Cheng; Prashant Goswami; Guohua Bai; Slawomir Nowaczyk; Blekinge Tekniska Högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machine Learning; Time Series; Traffic Engineering;

   Sammanfattning : Intelligent transportation systems (ITS) are becoming more and more effective. Robust and accurate short-term traffic prediction plays a key role in modern ITS and demands continuous improvement. LÄS MER

7. 15. Designing Urban Road Congestion Charging Systems : Models and Heuristic Solution Approaches

   Författare :Joakim Ekström; Jan Lundgren; Anders Karlström; Linköpings universitet; []
   Nyckelord :transport modeling; congestion pricing; network design; bi-level optimization; toll locations; traffic assignment; user equilibrium; collection cost; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : The question of how to design a congestion pricing scheme is difficult to answer and involves a number of complex decisions. This thesis is devoted to the quantitative parts of designing a congestion pricing scheme with link tolls in an urban car traffic network. LÄS MER