Publicaties
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Hazard perception in young cyclists and adult cyclists Universiteit Gent
Quantified Cycling Safety: Towards a Mobile Sensing Platform to Understand Perceived Safety of Cyclists Universiteit Hasselt
Today’s level of cyclists’ road safety is primarily estimated using accident reports and self-reported measures. However, the former is focused on post-accident situations and the latter relies on subjective input. In our work, we aim to extend the landscape of cyclists’ safety assessment methods via a two-dimensional taxonomy, which covers data source (internal/external) and type of measurement (objective/subjective). Based on this taxonomy, we ...
The impact of a child bike seat and trailer on the objective overtaking behaviour of motorized vehicles passing cyclists Vrije Universiteit Brussel
Introduction: The lateral clearance distance of a motorized vehicle while overtaking a cyclist is a key indicator of safety. This lateral clearance distance has never been measured for cyclists transporting a child. Therefore the aim of this study was to investigate the behaviour of motorized vehicles in overtaking cyclists with and without a child on the same bicycle. Methods: The lateral clearance distance of the overtaking manoeuvres of ...
CFD simulations of the aerodynamic drag of two drafting cyclists KU Leuven
The aerodynamic drag of two drafting cyclists in upright position (UP), dropped position (DP) and time-trial position (TTP) is analysed by Computational Fluid Dynamics (CFD) simulations supported by wind-tunnel measurements. The CFD simulations are performed on high-resolution grids with grid cells of about 30μm at the cyclist body surface, yielding y* values well below five. Simulations are made for single cyclists and for two drafting cyclists ...
Analyzing cyclists' behaviors and exploring the environments from cycling tracks Universiteit Gent
Human behaviors analysis aims to interpret inherit behavioral patterns from multi-sensor data and support people in carrying out their lives in an easier way. One of the more novel topics is urban cycling analysis, which tries to understand cyclistsU+2019 behaviours and explore the environment. However, analyzing cycling behaviors is still very challenging due to the presence of messy and corrupted global positioning system (GPS) raw data. In ...
Exercise-induced myocardial T1 increase and right ventricular dysfunction in recreational cyclists Universiteit Antwerpen KU Leuven Universiteit Hasselt
Purpose Although cardiac troponin I (cTnI) increase following strenuous exercise has been observed, the development of exercise-induced myocardial edema remains unclear. Cardiac magnetic resonance (CMR) native T1/T2 mapping is sensitive to the pathological increase of myocardial water content. Therefore, we evaluated exercise-induced acute myocardial changes in recreational cyclists by incorporating biomarkers, echocardiography and CMR. Methods ...
Differences in Life Space Area between Older Non-Cyclists, Conventional Cyclists and e-Bikers Vrije Universiteit Brussel Universiteit Gent
Purpose: Conventional and electric bicycles (e-bikes) offer a non-polluting and physically-active alternative to cars to support older adults' access to different life spaces. We aimed to provide an initial exploration of the relationship between cycling status (non-cyclist, conventional cyclist or e-biker) and life space area. Additionally, we examined whether this was moderated by sex, functional health and car driving. Methods: ...
Studying the effects of an advanced driver-assistance system to improve safety of cyclists overtaking Universiteit Hasselt
Among all crashes involving cyclists, a motorist approaching from behind a cyclist on a shared lane is particularly dangerous and likely to result in serious injuries and fatalities. Previous research has highlighted that inadequate lateral distance and high vehicle speed are among the main contributing factors of crashes involving cars overtaking cyclists. A new advanced driver assistance system (ADAS) which supports drivers as they overtake ...
Cyclist drag in team pursuit: influence of cyclist sequence, stature and arm spacing KU Leuven
In team pursuit, the drag of a group of cyclists riding in a pace line is dependent on several factors, such as anthropometric characteristics (stature) and position of each cyclist as well as the sequence in which they ride. To increase insight in drag reduction mechanisms, the aerodynamic drag of four cyclists riding in a pace line was investigated, using four different cyclists, and for four different sequences. In addition, each sequence was ...