Effects of a Lane Marking Nudge at a Cyclist T-Intersection: A field study at Eindhoven, Netherlands

This research investigates the speed behaviour and safety effects on cyclists and mopeds sharing the cyclist T-Intersection with and without the application of a lane marking nudge. Unsignalised cyclist T-Intersection gives rise to more safety-critical instances, which include unsafe braking and evasive maneuvers. It is also found that...

Traffic Safety around Major Forks: A driving simulator study that compares different configurations with the use of surrogate safety measures

By means of a driving simulator experiment and an accident data analysis, this research focuses on two points: (1) an expected difference in turbulence between major fork configurations that differ in the number of mandatory lane changes for rightmost traffic going to the left-diverging roadway, and (2) an expected difference in driver...

Assessing Traffic Safety of Dutch Weaving Sections: A Validation of the Surrogate Safety Assessment Model combined with VISSIM

Weaving sections are frequently applied on Dutch freeways. Guidelines are present for designing those freeway weaving sections. However, the origin of these guidelines is unclear and it is not always possible to apply the guidelines. Dutch road designers and road safety experts are searching for methods to evaluate the safety of a (proposed)...

The road safety of merging tapers: Measuring the effect of varying geometric designs and traffic conditions on driving behaviour at merging tapers

In Dutch design guidelines it is presumed that merging tapers are unsafe compared to the standard merger design. However, this presumption is not scientifically underpinned and therefore it is unclear whether this presumption is correct and if merging tapers are indeed unsafe. Design guidelines for merging tapers are neither scientifically...

A critical assessment of methodologies for operations and safety evaluations of freeway turbulence

Turbulence in traffic is a commonly known phenomenon, but the exact characteristics of this phenomenon are not yet clear. It reflects individual changes in speed, headways, and lanes in the traffic stream. The currently used freeway design guidelines prescribe different measures for handling turbulence, such as sufficient ramp spacing, and...