TRB’s second Strategic Highway Research Program (SHRP 2)Report S2-S06-RW-1: Naturalistic Driving Study: Technical Coordination and Quality Control documents the coordination and oversight of participant- and vehicle-based operations for an in-vehicle driving behavior field study collected from naturalistic driving data and associated participant, vehicle, and crash-related data. This report docume...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S06-RW-2: Naturalistic Driving Study: Collecting Data on Cell Phone Use details the methodology used to acquire cell phone use records from a subset of participants in the SHRP 2 Naturalistic Driving Study (NDS) during the time when they were enrolled in the study. The cell phone records were then matched with participants’ NDS dri...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S08B-RW-1: Analysis of Naturalistic Driving Study Data: Offset Left-Turn Lanes evaluates the gap acceptance behavior of drivers at left-turn lanes with offsets ranging from -29 feet to 6 feet.

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S08A-RW-1: Analysis of Naturalistic Driving Study Data: Safer Glances, Driver Inattention, and Crash Risk explores the relationship between driver inattention and crash risk in lead-vehicle precrash scenarios (corresponding to rear-end crashes).

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S01E-RW-1: Evaluation of Data Needs, Crash Surrogates, and Analysis Methods to Address Lane Departure Research Questions Using Naturalistic Driving Study Data examines the statistical relationship between surrogate measures of collisions (conflicts, critical incidents, near collisions, or roadside encroachments) and actual collisio...

TRB’s Strategic Highway Research Program (SHRP 2) Report S2-S05-RR-1: Design of the In-Vehicle Driving Behavior and Crash Risk Study provides a summary of the key aspects of the planning effort supporting the SHRP 2 Naturalistic Driving Study (NDS). SHRP 2 Safety Project S05: Design of the In-Vehicle Driving Behavior and Crash Risk Study (Study Design) designed the SHRP 2 NDS, which will collect d...

TRB’s second Strategic Highway Research Program (SHRP 2). Report S2-S02-RW-1:Integration of Analysis Methods and Development of Analysis Plan provides an analysis plan for the SHRP 2 Naturalistic Driving Study (NDS) to help guide the development of Project S08, Analysis of In-Vehicle Field Study Data and Countermeasure Implications, and to help assist researchers planning to use the SHRP 2 NDS dat...

TRB’s second Strategic Highway Research Program (SHRP 2) SHRP 2 Safety Project S08 has released a report titled Initial Analyses from the SHRP 2 Naturalistic Driving Study: Addressing Driver Performance and Behavior in Traffic Safety that summarizes phase 1 work produced by four analysis contracts that were awarded to study specific research questions using early SHRP 2 naturalistic driving study ...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S04A-RW-1: Naturalistic Driving Study: Development of the Roadway Information Database documents efforts to design, build, and populate a Roadway Information Database (RID) encompassing data from the SHRP 2 mobile data collection project (S04B), other existing roadway data, and supplemental traffic operations data. The RID was...

TRB's second Strategic Highway Research Program (SHRP 2) Report S2-S31-RW-3: Naturalistic Driving Study: Linking the Study Data to the Roadway Information Database details the methodology used to link the second Strategic Highway Research Program (SHRP 2) Naturalistic Driving Study (NDS) data to the SHRP 2 Roadway Information Database (RID), the final critical step in completing the SHRP 2 Safety ...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S08D-RW-1: Analysis of Naturalistic Driving Study Data: Roadway Departures on Rural Two-Lane Curves analyzes data from the SHRP 2 Naturalistic Driving Study (NDS) and Roadway Information Database (RID) to develop relationships between driver, roadway, and environmental characteristics and risk of a roadway departure on cu...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S31-RW-2: Naturalistic Driving Study: Alcohol Sensor Performance offers a glimpse into alcohol-impaired driving through the inclusion of an alcohol sensor in the Naturalistic Driving Study (NDS). The S31 Project developed and evaluated an alcohol-detection algorithm using the sensor through two approaches: an experim...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S01C-RW-1: A Multivariate Analysis of Crash and Naturalistic Driving Data in Relation to Highway Factors explores analysis methods capable of associating crash risk with quantitative metrics (crash surrogates) available from naturalistic driving data. Errata: The foreword originally contained incorrect information about the project...

TRB’s second Strategic Highway Research Program (SHRP 2) has released Report S2-S31-RW-1: Naturalistic Driving Study: Descriptive Comparison of the Study Sample with National Data that provides technical support to users of the SHRP 2 Naturalistic Driving Study (NDS) data. Specifically, the report provides guidance for analysts with weighting SHRP 2 NDS data so they may make comparisons with the U...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S01B-RW-1: Analysis of Existing Data: Prospective Views on Methodological Paradigms investigates structured modeling paradigms for the analysis of naturalistic driving data. This report is available only in electronic format.

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S07-RW-1: Naturalistic Driving Study: Field Data Collection that summarizes the compilation of a comprehensive naturalistic driving database. This database, together with associated roadway, driver, and environmental data provides a resource from which to study the role of driver performance and behavior in traffic safety and ...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S01A-RW-1: Development of Analysis Methods Using Recent Data introduces an approach to microscopic or individual event modeling of crash-related events, where driver actions, initial speeds, and vehicle locations are treated as inputs to a physical model describing vehicle motion. The report also illustrates how a trajectory model,...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S09-RW-1: Site-Based Video System Design and Development documents the development of a Site Observer, a prototype system capable of capturing vehicle movements through intersections by using a site-based video imaging system. The Site Observer system for viewing crashes and near crashes as well as a basis for developing objective ...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-S03-RW-1: Roadway Measurement System Evaluation documents the evaluation of automated, mobile data-collection services to provide data on roadway features and characteristics considered important for safety analysis, especially analysis of data from the SHRP 2 Naturalistic Driving Study. This report is only available in electronic ...