Non-Driving-Related Task Engagement: The Role of Speed
Name
safety-08-00034-v2.pdf
Size
1.08 MB
Format
Adobe PDF
Checksum (MD5)
6ec8d68dc972d0e8d4cc6294cebfeca5
Author(s)
Seaman, Sean
Gershon, Pnina
Angell, Linda
Mehler, Bruce
Reimer, Bryan
Date Issued
May 3, 2022
Publisher
Multidisciplinary Digital Publishing Institute
Citation
Safety 8 (2): 34 (2022)
Version
Final published version
Abstract
Non-driving-related tasks (NDRTs) have the potential to affect safety in a number of ways, but the conditions under which drivers choose to engage in NDRTs has not been extensively studied. This analysis considers naturalistic driving data in which drivers were recorded driving and engaging in NDRTs at will for several weeks. Using human-annotated video captured from vehicle cabins, we examined the probabilities with which drivers engaged in NDRTs, and we examined the relationship between vehicle speed and NDRT probability, with the goal of modeling NDRT probability as a function of speed and type of NDRT observed. We found that tasks that contain significant visual and manual components, such as phone manipulation, show strong sensitivity to vehicle speed, while other tasks, such as phone conversation, show no effects of vehicle speed. These results suggest that there are systematic relationships between NDRT patterns and vehicle speed, and that the nature of these relationships is sensitive to the demands of the NDRT. The relationship between speed and NDRT probability has implications for understanding the effects of NDRTs on safety, but also for understanding how drivers may differ in terms of the strategies they employ to modulate their NDRT behaviors based upon driving demands.
MIT Department
Massachusetts Institute of Technology. Center for Transportation & Logistics
AgeLab (Massachusetts Institute of Technology)
Terms of Use
Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.3390/safety8020034
