(7) INTERACTION Final event - Navigation system & Phone Context

180 views
138 views

Published on

Published in: Automotive
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
180
On SlideShare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

(7) INTERACTION Final event - Navigation system & Phone Context

  1. 1. Results of Cross Country analysis on Navigation use and Mobile Phone use Nicole van Nes, Michiel Christoph, Allert Knapper SWOV21-11-12
  2. 2. Description of the sample Hours Km #Drivers   #valid trips   Driven   Driven   Finland   15   1611   750   33031   France   16   1495   698   34751   Spain/Portugal   13   334   210   6961   The Netherlands   21   1319   573   26388   United Kingdom   15   392   320   16731   Total   80   5151   2550   117862  21-11-12 2
  3. 3. Interaction with Navigation System 3
  4. 4. video21-11-12 4
  5. 5. Frequency of manual interactions 7 6 5 4 3 2 1 0 Finland France Spain/Portugal the United Total Netherlands Kingdom Number of driver’s interactions with NS by hours driven with NS21-11-12 5
  6. 6. Frequency of manual interactions by speed 100% 90% 80% 70% 60% >10 50% <=10km/h 40% Stopped 30% 20% 10% 0% Finland France Spain/Portugal the United Total Netherlands Kingdom Number of driver’s interactions with NS by hours driven with NS according to the speed of the car21-11-12 6
  7. 7. Frequency of manual interactions by speed 25 20 15 Stopped <=10km/h 10 >10km/h 5 0 Finland (n=11) France (n=16) Spain/Portugal the Netherlands United Kingdom Total (n=76) (n=13) (n=21) (n=15) Number of driver’s interactions with NS by hours driven with NS according to the speed of the car21-11-12 7
  8. 8. Frequency of destination entries by speed 3 2,5 2 Stopped 1,5 <=10km/h >10km/h 1 0,5 0 Finland (n=11) France (n=16) Spain/Portugal the Netherlands United Kingdom Total (n=76) (n=13) (n=21) (n=15) Number of destination entrances with NS by hours driven with NS according to the speed of the car21-11-12 8
  9. 9. Conclusions•  Drivers interacted with their navigation about 4 to 5 times per hour•  About half of the manual interactions took place while driving•  When the car was stopped there were relatively more interactions (11/hour) than when driving (2 to 7/hour)21-11-12 9
  10. 10. Interaction with Mobile Phone21-11-12 10
  11. 11. video22-11-12 11
  12. 12. video22-11-12 12
  13. 13. Frequency of manual interactions 12 10 8 6 4 2 0 Finland France Spain/Portugal the Netherlands United Kingdom Total Number of driver’s interactions with mobile phone21-11-12 13
  14. 14. Frequency of manual interactions by speed 100% 90% 80% 70% 60% 10km/h 50% <=10k/h 40% Stopped 30% 20% 10% 0% Finland France Spain/ the United Total Portugal Netherlands Kingdom Number of driver’s interactions with mobile phone by hours driven according to the speed of the car21-11-12 14
  15. 15. Frequency of manual interactions by speed 35 30 25 20 Stopped <=10km/h 15 >10km/h 10 5 0 Finland (n=5) France (n=16) Spain/Portugal the Netherlands United Kingdom Total (n=70) (n=13) (n=21) (n=15) Number of driver’s interactions with mobile phone by hours driven according to the speed of the car21-11-12 15
  16. 16. Conclusions•  Drivers interacted with their mobile phone nearly 6 times per hour•  More than 70% of the manual interactions took place while driving•  When the car was stopped there were relatively more interactions (11/hour) than when driving (3 to 8/hour)21-11-12 16
  17. 17. Conclusions•  Interaction with mobile phone were slightly more than with navigation system22-11-12 17
  18. 18. Some additional Dutch results •  Duration •  Subtasks22-11-12 18
  19. 19. video22-11-12 19
  20. 20. Results on manual interactionsAverage duration of interaction with•  mobile phone: 31.0 seconds, SD=15.5•  navigation device: 20.9 seconds, SD=9.6Duration of interaction with mobile phone was significantlylonger than with the navigation device NS  interac5ons   MP  interac5ons   80  Average  dura*on  of     60   interac*ons   40   20   0   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   Par*cipant  The average duration of manual interactions. 20
  21. 21. Results on manual interactions NS  interac5ons   MP  interac5ons   15  interac*ons  per  hour   Average  number  of   10   5   0   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   Par*cipant  Average number of manual interactions per hour. NS  interac5ons   MP  interac5ons   80  Average  dura*on  of     60   interac*ons   40   20   0   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   Par*cipant  The average duration of manual interactions. 21
  22. 22. Duration of manual interactions MP interactions NS interactions 70% 60% •  48% of interactions with the mobile phone > 15 seconds Fraction of interactions 50% •  40% of interactions with the navigation 40% device > 15 seconds 30% 20% 10% 0% 0-15 15-30 30-45 45-60 60-75 75-90 >90 Duration of interactionFraction (%) of manual interactions for different durations. 22
  23. 23. Analysis of subtasks 23
  24. 24. Results on sub tasks Destination entries: 45% 100%   1%   Other tasks: 42% Average  frac*on  of  the  total   12%   17%   80%   11%   60%   dura*on   Holding   40%   87%   72%   Grabbing   20%   Opera5ng   0%   NS     MP   Device   Average fraction of manual interaction subtasks MP   NS   60  Average  dura*on  (sec)   Destination entries: 26.6 seconds (SD = 13.2) Other tasks: 15.3 seconds (SD = 10.0) 40   20   33,6   20,7   21,2   19,6   8,8   12,0   0   Holding   Opera5ng   Grabbing   Interac*on  with  device  Mean duration (seconds) of manual interaction subtasks 24
  25. 25. Duration of operating eventsAverage fraction of all device operating events for different durations. MP operating NS operating 70% Average fraction of operating 60% 50% 40% 30% 20% 10% 0% 0-15 15-30 30-45 45-60 60-75 75-90 >90 Duration of operating (sec)•  36% of all mobile phone and navigation device operating events took longer than 15 seconds 25
  26. 26. Duration of operating event in relation to initiation speed MP operating NS operating MP operating NS operating 45 45 40 40 35 35 Average duration (s)Average duration (s) 30 30 25 25 20 20 15 15 10 10 5 5 0 0 Stopped Driving 0-30 30-60 60-90 >90 No significant effects of the speed at which the task was started on the duration of the operating tasks for the navigation system were found. 22-11-12 26
  27. 27. Preliminary results on Glance behaviour100% 2,53% 100% 1,78% 6,40%90% 90% 3,46%80% 80%70% 70%60% 72,94% Other_outside 60% 56,66% Other_outside50% Other_inside 50% Other_inside40% Nav_system 40% Mobile_phone30% Forward_road 30% Forward_road20% 20% 33,48%10% 22,74% 10% 0% 0% Totaal Totaal Glance distribution while Glance distribution while operating the navigation operating the mobile phone system 27
  28. 28. ConclusionsDuration•  A substantial amount of driving time was spent on interacting with the mobile phone and the navigation device•  Participants made relatively more operations at lower speeds - However, duration of operations are similar for different driving speedsSubtasks•  Most of the time interacting with the devices was spent on the visual-manual subtask operating•  Participants allow themselves on average 20 s to perform a visual manual task 28
  29. 29. Thanks for your attention!21-11-12 29

×