DOI: 10.15787/vtt1/doc5xm
title: IAP Project: Understanding Interactions between Drivers and Pedestrian Features at Signalized Intersections

description: Project Description This dataset supported a project to understand “How do drivers interact with pedestrian features at signalized intersections when pedestrians are or are not present?” These pedestrian features include pedestrian signs, pedestrian signals, traffic signals, crosswalks, and pavement markings. The project encompassed four broad topics: Vulnerable Road Users, Roadway Features and Driver Performance, Intersections, and Driver Speed. The findings of the research were expected to help FDOT fully understand 1) driver interactions with various pedestrian features at signalized intersections, 2) the effectiveness of pedestrian features, 3) the impact of gender and age group on driver interactions, 4) specific interactions between drivers and pedestrians, and 5) the impact of driver attention and/or distraction on driver interactions. Data Request Scope The dataset includes information from 15 different signalized intersections selected by the research team, and from approximately 50 drivers for each intersection, each of which was required to traverse the intersection a minimum of 50 times within the data sample. In total, the dataset includes about 2700 signalized intersection traversals. In 10% of the cases, a full trip trace was required. In the remainder, a 30-second traversal segment was used. Data Specification Definitions for the following variables can be found in the Background section of the InSight website . Trip Summary Measures. Provide only for the trips in which the selected intersections were traversed. Brake Activations % Mobile Van Cov % HSIS Derived Rd Class % Other Class % Rur 2 Ln % Rur Frwy % Rur Frwy 4 Lns % Rur Multi Div Non-Frwy % Rur Multi Undiv Non-Frwy % State Data Cov % Urb 2 Ln % Urb Frwy % Urb Frwy 4 Lns % Urb Multi Div Non-Frwy % Urb Multi Undiv Non-Frwy % No Spd Lim Data % Spd Lim 35 or Less % Spd Lim 40-50 % Spd Lim 55-65 % Spd Lim 70 or Greater Trip Start Local Time Hour of Day Trip End Local Time Hour of Day ABS Available ABS Activation Mean Speed Max Speed Turn Signal Available Turn Signal Activations Cell Phone Flag Events. Includes near-crashes that occurred at the selected intersections. Event Nature 1 Event Nature 2 Relation To Junction Incident Type 1 Incident Type 2 Intersection Influence Final Narrative Driver Behavior 1 Driver Behavior 2 Driver Behavior 3 Secondary Task 1 Secondary Task 1 Start Time Secondary Task 1 End Time Secondary Task 1 Outcome Secondary Task 2 Secondary Task 2 Start Time Secondary Task 2 End Time Secondary Task 2 Outcome Secondary Task 3 Secondary Task 3 Start Time Secondary Task 3 End Time Secondary Task 3 Outcome Driver. Provided for participants represented in the sample. Age (provided in age bins) Gender Behavior Questionnaire (all available answers) Risk Taking Questionnaire (all available answers) Risk Perception Questionnaire (all available answers) Medical Conditions Medications (all available answers) Vehicle. Provided for the vehicles represented in the sample. Make Model Year Time series. Provided for the trip segments in the sample. A trip segment was defined as the time the participant was on the link IDs which defined an intersection. The variables included, when available, for the events of interest: vtti.speed_network vtti.speed_gps vtti.accel_x vtti.accel_y vtti.accel_z vtti.pedal_gas_position vtti.head_confidence vtti.pedal_brake_state vtti.abs vtti.turn_signal steering wheel position wiper setting GPS heading Timestamp subjectID latitude and longitude Video. The dataset includes video of the forward roadway during the periods encompassed by the time series data.