INTERACTION WP4                      Speed Regulating Systems                      Context and modalities of use          ...
Sample and vehicle description               Naturalistic driving data used for speed regulation system analysisCountry   ...
Homogeneity of the data• Some differences between countries  – Not the same IVT on all the country vehicles :    difficult...
Results• Do all drivers use speed regulation  systems in the same way ?• Do driver have preferences ?26/11/2012           ...
A typology of speed regulation systems users :               Exclusive CC; Exclusive SL; mixed                            ...
Results• About CC use  – Context of use  – Modality of use• About SL use  – Context of use26/11/2012                  6
When do driver choose to use CC ?• Study of the context of use in terms of   – Road environment (From GIS)          Highw...
Context of CC use                                                    Influence of road type ?                             ...
Context of CC use                                              Influence of traffic ?                                     ...
Context of CC use                                           Influence of weather?         Hours driven with CC   Finland  ...
Extracts of Renault, Opel, Fiat, Peugeot and                                    Ford owner manuals26/11/2012              ...
How do driver use CC ?• Study of the use of CC controls   – Frequency of interactions   – Length of the CC engagement sect...
Number of +/- hits and speed setting changes  Modality of CC use                                             per hour driv...
Modality of CC use                                                   length of CC engagement sections                     ...
Modality of CC use          Illustration of CC use strategyHighway trip time line                                         ...
Modality of CC use                 Selection of cruising speed vs. legal speed limit• For France                          ...
How do driver choose to use SL ?• Study of the context of use in term of   – Road environment (From GIS)          Highway...
Breakdown of SL use according to road type (A3)             France                                      At the difference ...
A typology of SL users If CC users can be considered as an homogeneous group, it is not the          Legal 50km/h 90km/h 1...
Are there interactions between                                  systems ?• Sutdy of the number of calls on Highway on  fre...
MP calls on Highway on free flowing conditions according CCuse(C1)                                                        ...
Thank you for your attention      Final event – November 22, 2012 - Brussels   22
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(4) INTERACTION Final event - Speed regulation systems context

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(4) INTERACTION Final event - Speed regulation systems context

  1. 1. INTERACTION WP4 Speed Regulating Systems Context and modalities of use Corinne Brusque (IFSTTAR)INTERACTION Final Event22 November 2012, Brussels
  2. 2. Sample and vehicle description Naturalistic driving data used for speed regulation system analysisCountry Nb drivers Nb of trips Hours driven Km driven Finland 15 593 395 17306 France 16 1495 698 34751 Spain + 13 334 210 6961 Portugal Car modelsCountry Nb of cars CC SL brandsFinland 5 Yes No VolkswagenFrance 5 Yes Yes Peugeot / RenaultSpain + 5 Yes yes PeugeotPortugal Final Event 22 November 2012 2
  3. 3. Homogeneity of the data• Some differences between countries – Not the same IVT on all the country vehicles : difficulties to find intensive users – Some technical glitches with the data : GPS speed not stored – Not the same amount of data enriched with video coding : hard to obtain use rate if everything is not coded. Use rates of IVT cannot be compared Only french Data suitable for speed analysis26/11/2012 3
  4. 4. Results• Do all drivers use speed regulation systems in the same way ?• Do driver have preferences ?26/11/2012 4
  5. 5. A typology of speed regulation systems users : Exclusive CC; Exclusive SL; mixed exclusive CC users 100.00% 0.00% exclusive SL users • Finland: mixed CC/SL users 15 CC0% 50% 100% exclusive CC users • France: 46.67% 53.33% exclusive SL users 15 CC; 8 SL mixed CC/SL users 0% 50% 100% • Spain/Portugal exclusive CC users 7.69% 92.31% exclusive SL users 13 CC; 12 SL mixed CC/SL users 0% 50% 100%26/11/2012 5
  6. 6. Results• About CC use – Context of use – Modality of use• About SL use – Context of use26/11/2012 6
  7. 7. When do driver choose to use CC ?• Study of the context of use in terms of – Road environment (From GIS)  Highway  Urban  Rural – Weather (coded from video)  impacting the drivers behaviours  not impacting the drivers behaviours  Extreme weather conditions – Traffic (coded from video)  Free flowing driving conditions  Constrained by other drivers  Extreme traffic conditions26/11/2012 7
  8. 8. Context of CC use Influence of road type ? % Hours driven with CC on 40.30% 50.30% Highways Finland 9.40% % Hours driven with CC on Rural roads • 3 drivers filtered on spain/port data due 0% 50% 100% to a too minor time spent using CC (less than 20mn in total). % Hours driven with CC on Highways • CC use mainly on highway or rural 87.05% 11.60% % Hours driven roads. France 1.35% with CC on Rural roads • Differences of rural road types according % Hours driven with CC on Urban countries: more or less curves. 0% 50% 100% roads • CC use on urban roads: marginal in France, 10% in Finland and Spain/Port: more driving at night ? (need to go back to the data to understand)Spain/Portugal 26/11/2012 8
  9. 9. Context of CC use Influence of traffic ? % Hours driven with CC on Free flowing traffic conditions 87.76% 12.24% % Hours driven with Finland CC on constrained traffic conditions % Hours driven with CC on traffic jam 0% 50% 100% Free flowing conditions with % Hours driven with no impact on driving represent CC on Free flowing more than 85% CC situations traffic conditions 1.65% for all the countries. France 98.27% % Hours driven with 0.08% CC on constrained traffic conditions % Hours driven with CC on traffic jam 0% 50% 100% % Hours driven with CC on Free flowing traffic conditionsSpain/Portugal 91.99% 7.97% % Hours driven with CC on constrained 0.04% traffic conditions % Hours driven with CC on traffic jam 0% 50% 100% 26/11/2012 9
  10. 10. Context of CC use Influence of weather? Hours driven with CC Finland • CC use mainly on good weather conditions • Differences on weather conditions and experimentation periods in % Hours driven with the countries compared. CC on weather conditions no impacting drivers • Breakdown of CC use according France 85.68% 14.32% behaviour weather condition similar to the % Hours driven with profile of weather conditions in CC on weather conditions impacting each country. drivers behaviour 0% 50% 100%Spain/Portugal 26/11/2012 10
  11. 11. Extracts of Renault, Opel, Fiat, Peugeot and Ford owner manuals26/11/2012 11
  12. 12. How do driver use CC ?• Study of the use of CC controls – Frequency of interactions – Length of the CC engagement sections  Section of the trips when CC was engaged – Selection of the cruising speed26/11/2012 12
  13. 13. Number of +/- hits and speed setting changes Modality of CC use per hour driven with CC Finland • Finland: Less interactions with the CC France than France and Spain/PortugalSpain/Portugal 26/11/2012 13
  14. 14. Modality of CC use length of CC engagement sections % of short CC sections (<= 1 min)Finland 35.59% 51.34% 13.07% % of medium CC sections (> 1 min &<= 10 min) % of long CC sections (> 10 min) 0% 50% 100% • Half the sections and more are during more than 1 minute and less than 10 mn.France • On highway at 120 km/h: section between 2 and 20 km. • 1/3 CC section < 1 mn in each country.Spain/Portugal 26/11/2012 14
  15. 15. Modality of CC use Illustration of CC use strategyHighway trip time line 5 min Exit road work and traffic tunnel toll gate overtaking under traffic junction
  16. 16. Modality of CC use Selection of cruising speed vs. legal speed limit• For France • There are not significant Drivers ID Car model 110km/h 130km/h differences on speed gap 401 308 3,7 4,5 402 308 -1,2 -1,6 according to the value of 403 308 1,6 4,5 the legal speed limit. 404 clio -1,7 2,4 405 308 7,2 5,5 406 clio 7,2 1,4 • 13/15 of the drivers in over 407 308 3,7 2,5 408 207 5,3 3,7 speeding 409 clio 410 207 8,1 -9,7 411 308 6,7 4,9 • Drivers select a cruising 412 207 6,6 5,1 413 207 11,4 3,6 speed slightly superior to 414 308 3,6 2,2 the legal speed limit. In 415 207 5,9 12,2 416 207 18,1 0,5 average, the difference is Mean Clio 1,9 equal to 3 km/h. 308 3,21 207 2,57 Std Clio 0,71 • No effect of the car model. 308 2,45 207 7,1626/11/2012 16
  17. 17. How do driver choose to use SL ?• Study of the context of use in term of – Road environment (From GIS)  Highway  Urban  Rural26/11/2012 17
  18. 18. Breakdown of SL use according to road type (A3) France At the difference of CC, SL is used in the different road contexts Spain/Portugal26/11/2012 18
  19. 19. A typology of SL users If CC users can be considered as an homogeneous group, it is not the Legal 50km/h 90km/h 110km/h 130km/h case for SL users speed limit Data Data Data Data filtered filtered filtered filtered 402 79,40 88,3 Caution: 403 57,70 88,4 Data Filtered when the 404 54,70 time driving with SL in 407 84,40 108,6 122,60 135,5 the legal speed limit 411 62,50 zone is below 15 mn. 412 68,00 94,8 414 126,80 118,1 134,10 135,3 416 118,50 112,8 132,60 135,6 • Exclusive highway SL users: • Setting speed on highway is very homogeneous, 5 km/h above the legal speed limit • No change the setting speed when they get away from highway and drive on another road type. • Exclusive urban roads SL users: • The setting speed fits more the legal one. • Mixed rural/urban roads SL users: • No adaptation setting speed to legal one when driving on26/11/2012 urban area (small villages crossed during the trip). 19
  20. 20. Are there interactions between systems ?• Sutdy of the number of calls on Highway on free flowing conditions according CC use26/11/2012 20
  21. 21. MP calls on Highway on free flowing conditions according CCuse(C1) Spain/Portugal France France: Significant effect of the CC use but not on the way expected (Wx=3.23, p<0.001). Spain/Portugal: no significant effect bur same tendance.26/11/2012 21
  22. 22. Thank you for your attention Final event – November 22, 2012 - Brussels 22

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