USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

General

Subscribe to RSS

Biodiesel Intercity Passenger Rail Revenue Service Test

Appendices Appendix A - Fuel Summary Appendix B - 92 Day SOW Appendix C - Map100 Appendix D - Used oil sampling results Appendix E - ULSD sampling results Appendix F - COA Direct Fuels Appendix G - B100 sampling results Appendix H - B20 sampling results Appendix I - Emission Testing...

Safety Evaluation of High-Speed Rail Bogie Concepts

The study defines the basic design concepts required to provide a safe, reliable, high-speed bogie for the next generation PRIIA passenger locomotive. The requirements and conditions for the U.S. market create unique design challenges that currently cannot be addressed by a U.S.-based manufacturer...

Higher Speed Freight Truck Performance Requirements Analysis

This proposed requirements document combines a set of requirements for high-speed freight car truck design and performance from the generally accepted standards in the U.S. Code of Federal Regulation (CFR), the Association of American Railroads (AAR) Manual of Standards and Recommended Practices (...

Higher Speed Freight Truck Structural Analysis

Sharma & Associates, Inc. (SA) had previously (2005–2009) developed a higher speed freight truck under sponsorship of the Federal Railroad Administration (FRA). Under the current contract, SA was tasked with developing performance requirements for higher speed freight trucks, as well as...

Freeze-Thaw Performance Testing of Whole Concrete Railroad Ties

Freezing and thawing durability tests of prestressed concrete ties are normally performed according to ASTM C666 specifications. Small specimens are cut from the shoulders of concrete ties and tested through 300 cycles of freezing and thawing. Saw-cutting these specimens may cause eccentricities in...