Using Naturalistic Driving Study Data to Investigate the Impact of Driver Distraction on Driver's Reaction Time in Freeway Rear-ending Events

Project Description This dataset was created in support of one of the winners in the "Student Paper Competition: SHRP 2 Safety Data Bonanza" sponsored by the SHRP 2 Safety Data Program and the Transportation Research Board (TRB) Committee for Use and Oversight of SHRP 2 Safety Data, Phase 1. The goal of the study that leveraged the dataset was to to investigate driver behavior associated with freeway rear-ending events including crashes and near-crashes, especially the impact of driver distraction on rear-ending crash risk. Data Request Scope This dataset consisted of event detail and time-series data for 128 events involving rear-end striking. Time-series data provided information to derive the driver's reaction time in each event. Event description data from the "Event Detail Table Data" provided distraction-related data such as distraction presence and duration. To study the relationship between driver distraction and reaction time more comprehensively, other factors that may influence driver's reaction time such as driver's age, visual obstructions, etc. were also included. Data Specification The following data elements were provided for the events of interest. Time Series: Front Video Speed Acceleration Range (for lead vehicle track) Range Rate (for lead vehicle track) Brake Pedal Status Event Table: All variables. Please see EventDataDictionary.pdf Post Crash Interview Participant ID Incident State Hour of Day Age Group Driver Gender Travel Speed Other control Devices Traffic Signal Operation Weather Condition Weather Influence Avoidance Actions Brake Use Veh Avoidance Glance Location (Prior) Tracked Distraction Source Pre-Crash Driver Activity Glance Location (Onset) Driver Awareness Driver Questionnaires Participant ID Average Annual Miles Years Driving