U.S. flag An official website of the United States government.
Official websites use .gov

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

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.

US Transportation Collection

rosaP Repository & Open Science Access Portal

The US Transportation Collection consists of documents from across all transportation modes with specific focus on research reports from US DOT, state DOTs, and other transportation organizations. Bookmark this collection: https://rosap.ntl.bts.gov/collection_ust or https://doi.org/10.21949/1530857.

Showing 361 - 380 of 36054 results
  • Shear Wave Velocity Measurements Final Report Appendices
    Supporting Files
  • NMDOT Pedestrian Outreach Program
  • Improving Testing Requirements in Item 300 of TxDOT Standard Specification
  • Evaluation of Proprietary Rejuvenators
  • Development of a Cyclic SemiCircular Bend Test to Evaluate Asphalt Mixture Crack Propagation Properties at Intermediate Temperature
  • Beyond Copenhagen Walking and Cycling Success Stories from Cities Worldwide
  • Solar Snow Fence Controls Drifting Snow While Generating Power Implementation Summary
  • Audible Alert and TMA Lighting
  • Incorporating Sustainability into the Procurement Process Research Summary
  • Testing Survey Methods for Detecting Bats Roosting in Bridges Research Summary
  • Strategies for Addressing Deteriorated Concrete Roads Research Summary
  • Update to ARDOT Superpave Gyratory Compaction SGC Specification to Increase Pavement Durability
  • Testing Recycled Plastics in Asphalt and Concrete Pavement Mixes Research Summary
  • Analysis of School Bus StopArm Violation Reporting and Enforcement in Minnesota Lessons Learned and Opportunities for Process Improvements
  • Understanding Risks and Opportunities for Ramp Metering Control in a MixedAutonomy Future
  • Planning for Encounters with Special Management Areas Characterization Management Approaches and Syntheses
  • Rural Transit Fact Book 2025
  • Development of a Moisture Sensitivity Test for Asphalt Mixtures
  • 5GEnabled Safe and Robust Deep MultiAgent Reinforcement Learning Framework for CAV Coordination
    Supporting Files
  • Field Evaluation of Reinforced Concrete Repairs Using Hydrodemolition Galvanic Cathodic Protection or Impressed Current Cathodic Protection