Objectives and competences
The general aim of the subject is to inform students with fundamentals of traffic flow theory and with basic methods for dimensioning roads outside urban areas and the un-signalized intersections.
Student will know how to describe some basic parameters of traffic flow, their characteristics and related consequences. Students will be possible to list different ways of traffic modelling. Students will understand how to use different methods of traffic dimensioning.
Content (Syllabus outline)
- Conception and tasks of traffic technique,
Traffic flow theory
- Vehicle movement like a movement of mass point in the space,
- Definition of traffic flow
- Basis parameters of traffic flow
- Basic characteristics of traffic flow
- Fundamental diagram (models speed – flow, speed – density, flow – density)
- Basis of traffic flow modelling – determining and stochastic models
Traffic dimensioning
- Conception of capacity of traffic areas and its implementation into the project of transportation infrastructure
- Dimensioning of basic roadway segments (uninterrupted flow):
o Two lane roads based on HCM and HBS
o Usage of HCS
- Dimensioning of un semaforised intersection (interrupted flow):
o Method of critical gaps,
o TWSC intersection based on HCM2010 and HBS,
o Roundabouts based on HCM and HBS,
o AWSC intersection based on HCM and HBS,
o Usage of computer tools SIDRA INTERSECTION and HCS
Learning and teaching methods
Lectures using MS Power Point presentations and exercises are foreseen, where theoretically gained knowledge strengthens on concrete instances. Students in frame of exercises also finish the report seminar paper, comprising fieldwork and analysis of concrete realistic example.
Intended learning outcomes - knowledge and understanding
After finish of the subject student will be able:
- to describe basic parameters of traffic flow and methods to measure it’s in real environment,
- to describe characteristics of traffic flow,
- to explain basic relationships between parameters of traffic flow,
- to list some models used for traffic modelling,
- to explain fundamental equation and fundamental diagram,
- to distinguish between methods used for traffic dimensioning
- to comment how the methods work,
- to select relevant method of traffic dimensioning of unsemaforised intersections,
- to assess traffic demands,
- to explain the impact of assessment selected parameters to dimensioning results,
- to assess the impact and aim of dimensioning into traffic infrastructure projecting.
Intended learning outcomes - transferable/key skills and other attributes
- Communication skills: written expression by written exam and verbal expression by verbal exam.
Readings
Spletna predavanja: https://estudij.um.si/course/view.php?id=16786
D. Sever: Dinamika prometnih tokov (spletna predavanja)
I. Dadić, G. Kos: Teorija i organizacija prometnih tokova, Sveučilište u Zagrebu, Fakultet prometnih znanosti, Zagreb, 2007 (PDF je na razpolago na spletnih predavanjih)
Tranport Research Board: Highway Capacity Manual 2025, Washington DC, 2025 (PDF je na razpolago na spletnh predavanjih)
Forschungsgesellschaft für Straßen und Verkehrswesen, HBS – Handbuch für die Bemessung von Strassenverkehrsanlagen, Köln, 2015 (PDF je na razpolago na spletnh predavanjih)
Dodatni viri / Additional readings
Brilon W., Ausgewählte Kapitel aus der Theorie des Verkehrsflusses, Ruhr – Universität Bochum, 1998
E. Davies et all, The Physics of Traffic Flow, Department of Physics and astronomy, University College London, www.ucltrafficproject.wordpress.com
Prerequisits
Recommended knowledge from the field of mathematics, physics (cinematics, dynamics) and transportation infrastructure
Additional information on implementation and assessment The report is a condition for taking the WE
2 positive evaluated tests, passed WE
