1. A comparison of two license plate acquiring methods Ubiquitous computing David Filipovic

2.  Police officers -> always on the move  Acquiring license plate numbers while driving What is better?

3.  Police officers in charge of safety  We can also help to keep them safe

4.  Assumed: typing has more adverse effects on driving performance  Possible explanation: More time spent looking off road

5.  Conduct a study using the driving simulator  Have participants drive and perform under tasks experimental conditions  Collect data

6.  Driving scenario: 2-lane highway  Vehicles approached from their right  Primary task: driving  Secondary task: collecting license plates

7.  Driving performance data ◦ Lane position, steering wheel angle, PDT…  Physiological data ◦ EKG, skin conductance, pupil diameter  Qualitative data ◦ Participants’ opinions, NASA-TLX

8.  A ruggedized keyboard for the typing task  Ambient speech recognition (100% accuracy)

9.  Four male subjects  Aged 22-25, average: 23.75  Experienced drivers  Proficient QWERTY keyboard users

11. ANOVA, p<0.022

12. speechtyping Steering wheel angle

13.  Definitive presence of an effect  Future study with more participants