Traffic Flow at Signalized Intersections with High Bicycle Traffic Volumes

Project description and activities of the chair

Bicycling is a significant part of an urban transport system and traffic control measures are indispensable facilities to control traffic flow. The capacity and traffic quality of all traffic participants at signalised intersections can be influenced substantially depending on the volume of bicycle traffic. Furthermore, the evaluation procedure of the HBS (2015) does not consider all cases of bicycle traffic facility designs at intersection approaches provided by the RASt (2006) or the ERA (2010). Furthermore, the existing evaluation procedure is not designed for high bicycle traffic volumes.   The aim of this research project is to develop new and optimize existing evaluation methods for signalised intersections that take into consideration different types of bicycle traffic infrastructure and control as well as high bicycle traffic volumes. Furthermore, the limits for the implementation of different types of infrastructure and traffic control types will be identified. The adaptation of the methodology for the assessment of traffic quality at signalised intersections will be facilitated through traffic data collection and microscopic traffic simulation.

Activities at the Chair of Traffic Engineering and Control include:

• Project management
• Contribution to the classification and selection of possible bicycle traffic infrastructure and signal control types for further investigation
• Video traffic data collection at study intersections
• Processing of road user trajectories
• Derivation of the characteristic parameters for the description of traffic flow
• Simulation of different scenarios
• Analysis and evaluation of the simulation results