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 documents the methods used by six site contractors located at geographically distributed data collection sites thro...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-R01A-RW-1: Technologies to Support the Storage, Retrieval, and Use of 3-D Utility Location Data includes strategies, processes, and systems that may be applied to help acquire, store, use, and maintain 3-D utility location data from prior projects, in order to prevent repeated re-inventory of utility features on new renewal projects. The products of the R01A project aim to help avoid problems typically encountered from delays that unknown...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-L33-RW-1: Validation of Urban Freeway Models documents and presents the results of a project to investigate, validate, and enhance the travel time reliability models developed in the SHRP 2 L03 project titled Analytical Procedures for Determining the Impacts of Reliability Mitigation Strategies. This report explores the use of new datasets and statistical performance measures to validate these models. As part of this validation, this work...

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-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 database. The NDS data set contains detailed data collected continually from more than 5.5 million trips take...

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 driving data to identify the times while they were driving when they may have been using their cell phones. The ...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-L13A-RW-1: Designing the Archive for SHRP 2 Reliability and Reliability-Related Data explores the development, testing, and deployment of the SHRP 2 Reliability Archive system. This archive is a repository that stores the data and information from SHRP 2 Reliability and Reliability-related projects. This project also produced a document  that outlines the high-level architecture of the SHRP 2 Archive system.

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-C46-RR-1: Activity-Based Travel Demand Models: A Primer explores ways to inform policymakers’ decisions about developing and using activity-based travel demand models to better understand how people plan and schedule their daily travel. The document is composed of two parts. The first part provides an overview of activity-based model development and application. The second part discusses issues in linking activity-based models to dyn...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-C12-RR-1: Effect of Public-Private Partnerships and Nontraditional Procurement Processes on Highway Planning, Environmental Review, and Collaborative Decision Making explores the different points in the overall project development process when public-private partnership involvement can be introduced. The report also explores other types of nontraditional contracting arrangements and their impact on the project development process as set f...

TRB’s second Strategic Highway Research Program (SHRP 2) Report S2-R19B-RW-1: Bridges for Service Life Beyond 100 Years: Service Limit State Design explores design codes critical for bridges to reach a service live of beyond 100 years. The report also addresses performance measures and design procedures that utilize criteria to maximize the actual life of a bridge system. The weigh-in-motion (WIM) data files used in SHRP 2 Renewal Project R19B are available. The Federal Highway Administration's (FHW...