Automotive User Interfaces and Interactive Vehicular Applications

The use of in vehicle data recorders and selfreported
data for evaluating driving behavior of
young drivers
Gila�Albert*�
H.I.T�–�Holon�Institute�
of�Technology��
�
Tsippy�Lotan�
Or�Yarok��
ABSTRACT
This paper aims to evaluate the driving behaviour of
young drivers few years after licensure. The evaluation is
based on two kinds of data: In Vehicle Data Recorders
(IVDR) and Self-Reports (SR). The results show that
young drivers clearly perceived themselves as safer
drivers than they are according to IVDR. The results also
suggest, based on the two approaches, that young driver
improved their driving behavior while driving with
IVDR. The analysis obtained should be considered as
exemplifying the potential of what may be done with
these two evaluation approaches.
General Terms
Measurement, Experimentation.
Keywords
In Vehicle Data Recorders, Self-reports, Young drivers,
1. INTRODUCTION
Young drivers in Israel, similar to other places over the
globe, are involved in car crashes more than any other
age group [1,2]. The definition of a "young driver" in
many countries refers to relatively wide age group, e.g.,
the ages of 17-24 in Israel. This paper aims to evaluate
how young drivers in the age of 19-24 drive 3-4 after
licensure. The evaluation was done using two tools: In
Vehicle Data Recorders (IVDR) technology and Selfreported
data (SR). More specifically, we focused on the
relationship between these two measurements.
IVDR can be used for unobtrusive recording of driving
behaviour under ordinary traffic conditions. This
advanced recording equipment is installed in driver's car,
tracks all trips made by the vehicle and provides
information regarding trip characteristics and safety
levels. The manoeuvres detected during driving are
classified into major categories of events, e.g., speeding,
Copyright held by author(s).
AutomotiveUI’11, November 29-December2, 2011, Salzburg, Austria.
Adjunct Proceedings�
�
Tomer�Toledo�
Technion���Israel�
Institute�of�Technology,�
Haifa,�32000�Israel�
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*Email:�gila.albert1@gmail.com,�Tel/Fax�972�3�5026746�
H.I.T,�52�Golomb�St.,�Holon,�58102,�Israel��
- 7 -
�
Einat�Grimberg�
Or�Yarok��
�
Mariano�Lasebnik�
�
H.I.T�–�Holon�Institute�
of�Technology��
turn handling, and the quality of performance of the
detected manoeuvres is evaluated. Drivers are colorcoded
according to their safety classification: green
(cautious), yellow (moderate) and red (aggressive) [3,4].
SR are very popular tools employed in driver safety
research and many studies use it even as a sole source of
data. SR has many well recognized advantages, such as
its ease of use andthe ability to collect large data sets
relatively cheaply but suffers from well known
limitations regarding its validity as an indicator of actual
behaviour [5].
This paper is based on a study done in Israel as part of the
PROLOGUE project conducted within the EU FP7 [6].
2. METHODOLOGY
IVDR systems have been installed in the private cars of
the participants, 32 young drivers with 3-4 years of
driving experience at average age at the time the study
started of 20.5 ± 0.5 years. The participants were
recruited from a participants' pool that participated as
novice young drivers in a study conducted in Israel few
years ago [3]. All trips were monitored in a study period
of 8 months. The study period was divided into three
stages: the "blind profile" stage which started
immediately after the installation, provided no feedback
and served as a baseline; the "feedback stage" that
followed in which participants received real-time and via
the internet feedback; the final "cool-off" stage in which
the participants continued to drive with the IVDR but did
not receive any feedback. During the "blind profile" and
"cool-off" stages participants were asked to fill in specific
trip diaries regarding various characteristics of the trips
they have taken in the last 48 hours, e.g., date, time,
duration, trip purpose, perceived level of trip safety, etc.
3. RESULTS
Table 1 presents general statistics of the trips the
participants undertook. These trips are used in the
analysis that follows. The SR compiled for specific days
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