Drivers in a large-scale field operational test found Lane Departure Warning systems were more useful during night driving.

Advanced Driver Assistance Systems (ADAS) in Sweden, France, Italy, and Germany.

Date Posted
10/22/2014
Identifier
2014-B00952
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European Large-Scale Field Operational Tests on In-Vehicle Systems: Final results - User acceptance an user-related aspects

Summary Information

The euroFOT project is a large-scale Field Operational Test (FOT) undertaken in Europe in order to evaluate different Advanced Driver Assistance Systems (ADAS) with regard to user related aspects, traffic safety, efficiency and environment. Test vehicles instrumented with data acquisition systems and equipped with different ADAS have been provided by different manufacturers to drivers for everyday driving. The FOT is organised by four operational test centres (vehicle management centres) across Europe: Sweden, France, Italy, and Germany. The goal of the evaluation task is to assess the societal and individual impacts of the ADAS that are tested in the euroFOT project.

METHODOLOGY

The experimental design included a three month baseline and a nine month treatment phase to gather information on user expectations and satisfaction with the following functions during normal driving conditions.

Longitudinal functions

  • Adaptive Cruise Control (ACC) and Forward Collision Warning (FCW) together in one bundle (counted as one function)
  • Speed Regulation System (SRS): Speed Limiter (SL) and Cruise Control (CC)

Lateral functions

  • Lane Departure Warning (LDW) and Impairment Warning (IW) (bundle)
  • Blind Spot Information System (BLIS)

Other functions

  • Curve Speed Warning (CSW)
  • Navigation System (SafeHMI)

Almost 1000 vehicles (cars and trucks) were equipped with ADAS and more than a thousand drivers participated. Data were collected from onboard computer systems, video recordings, driver surveys, and questionnaires submitted to drivers at the start of the FOT, at the end of baseline phase, and at the end of treatment phase.

FINDINGS

Findings from the source report on Lane Departure Warning are identified below.

Lane Departure Warning
  • Driver satisfaction was relatively low, however, expectations were low prior to field testing.
  • Most drivers felt the system was very easy to use, however, many found the system irritating with respect to the timing of the warning system.
  • Drivers perceived increased safety. Turn indicators were used more often.
  • The system was found most useful during night driving on highways.
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