XpressWest NEPA Decision Memo Final - Attachment B: Resource Impacts Analysis Report

XpressWest NEPA Decision Memo Final - Attachment A: Summary of Project Modifications

XpressWest Reevaluation Summary

XpressWest Cover Page & Table of Contents

XpressWest NEPA Decision Memo Final: September 9, 2020

Metrics and Standards Final Rule November 16, 2020

Quick Calibration of Fracture Behaviors in TC128 Steel for Finite Element Modeling

From April 5, 2019, to August 20, 2020, the Volpe National Transportation Systems Center (Volpe) performed a series of finite element (FE) analyses of uniaxial tensile tests to calibrate material models for tank car steels (TC128) from two recent side impact tests. The material models, which...

Track Data Auditing System – Phase II

Transportation Technology Center, Inc. (TTCI), through a program sponsored by the Federal Railroad Administration (FRA), developed the architecture and core requirements for a Positive Train Control (PTC) Track Database Auditing System (TDAS), including system, subsystem, and interface...

Automated Train Operations (ATO) Safety and Sensor Development

In support of industry and Federal Railroad Administration (FRA) objectives to develop methods to increase automation in freight rail operations, Transportation Technology Center, Inc. (TTCI) performed a requirements analysis and initiated a safety analysis for a locomotive-borne sensor platform...

Broken Rim Detection Using Proximity Sensors

From February to April 2014, Transportation Technology Center, Inc. (TTCI) performed research and testing on a broken rim detector concept by Diesel Intellect International (DII). The detector uses proximity sensors to detect the presence of rim material overhanging the field side of the rail....