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A concept for naturalistic data collection for vulnerable road users using a smartphone-based platform

Leif Sandsjö (SAFER - Fordons- och Trafiksäkerhetscentrum ; Extern) ; Bengt Arne Sjöqvist (Institutionen för signaler och system, Medicinska signaler och system ; SAFER - Fordons- och Trafiksäkerhetscentrum ) ; Stefan Candefjord (Institutionen för signaler och system, Biomedicinsk elektromagnetik ; SAFER - Fordons- och Trafiksäkerhetscentrum )
The 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV) (2015)
[Konferensbidrag, övrigt]

This paper presents a smartphone-based platform for large-scale, low-cost, long-term naturalistic data collection aimed at vulnerable road users (VRUs). The approach taken is to collect naturalistic movement data from VRUs based on information from the embedded sensors in high-end smartphones. The Smartphone application, LogYard, developed in the current study, allows the recording of high quality data (tri-axial acceleration and rotation at 100 Hz plus GPS position and velocity each second). This way, large data quantities from ATV drivers’ movements during daily use in different use cases, can be transferred from a large number of users and accumulated in a cloud-based server for off-line analysis. Apart from the description on how data is recorded and managed in the smartphone-based platform, also a procedure on how to include participants to studies and how private integrity issues and informed consent can be handled from a distance is presented. By means of the presented smartphone based platform, large number of participants taking part in several parallel on-going studies can be easily administered. This makes the platform a powerful tool to use in large-scale, low-cost, long-term studies providing data from large groups of study participants. The information made available this way can be used to develop automatic crash notification (ACN) systems directed to VRUs based on identifying movements outside what is “normal” for bicyclists, mopedists, motorcyclists and ATV users.

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Denna post skapades 2015-06-17. Senast ändrad 2015-06-17.
CPL Pubid: 218485


Institutioner (Chalmers)

SAFER - Fordons- och Trafiksäkerhetscentrum
Institutionen för signaler och system, Medicinska signaler och system (2005-2017)
Institutionen för signaler och system, Biomedicinsk elektromagnetik (2006-2017)


Hållbar utveckling
Transportteknik och logistik

Chalmers infrastruktur