01630558

Component

Distracted driving has long been acknowledged as one of the leading causes of death or injury in roadway crashes. The focus of past research has been mainly on the impact of different causes of distraction on driving behavior. However, only a few studies attempted to address how some driving behavior attributes could be linked to the cause of distraction. In essence, this study takes advantage of the rich Second Strategic Highway Research Program (SHRP 2) Naturalistic Driving Study (NDS) database to develop a model for detecting the likelihood of a driver’s involvement in secondary tasks from distinctive attributes of driving behavior. Five performance attributes, namely speed, longitudinal acceleration, lateral acceleration, yaw rate, and throttle position were used to describe the driving behavior. A model was developed for each of three selected secondary tasks: calling, texting, and passenger interaction. The models were developed using a supervised feed-forward Artificial Neural Network (ANN) architecture to account for the effect of inherent nonlinearity in the relationships between driving behavior and secondary tasks. The results show that the developed ANN models were able to detect the drivers’ involvement in calling, texting, and passenger interaction with an accuracy of 96.3%, 95.6%, and 95.2%, respectively. These results show that the selected driving performance attributes were effective in detecting the associated secondary tasks with driving behavior. The results are very promising and the developed models could potentially be applied in crash investigations to resolve legal disputes in traffic accidents.

This paper was sponsored by TRB committee ADB10 Standing Committee on Traveler Behavior and Values.

01618707

17-05057

English

15p

2017

Transportation Research Board 96th Annual Meeting

Digital/other

Figures; References

Automatic data collection systems; Behavior; Crash investigation; Distraction; Drivers; Driving; Neural networks; Text messaging; Traffic safety; Vehicle occupants

Conversation while driving; Secondary tasks; Telephone calls

Highways; Safety and Human Factors

Transportation Research Board Annual Meeting 2017 Paper #17-05057

TRIS, TRB, ATRI

Dec 8 2016 11:57AM