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Guan Xu

202-366-5892

What’s New

Procedures for Setting Advisory Speeds on Curves

Highlights

State Practices to Reduce Wet Weather Skidding Crashes

Speed Concepts: Informational Guide

Speed Management Information Resources

USLIMITS 2 : Expert system for recommending speed limits based on NCHRP Project 3-67

Analysis of Speeding-Related Crashes (PDF 594 KB)

Engineering Countermeasures for Reducing Speeds: A Desktop Reference of Potential Effectiveness

Traffic Safety Facts: Speeding - 2007 (PDF 272 KB)

USLIMITS Expert Speed Zoning Advisor (PDF 2.37 MB)