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.

Automobiles

Legacy ID
50

Rural Speed Safety Pilot Project

 

Overview

Current crash prediction methods, such as those in the first edition of the Highway Safety Manual (HSM) use traffic volume data along with geometric characteristics to predict the annual average crash frequency of roadway segments and intersections. One limitation...

National Highway Traffic Safety Administration SORNs

DOT/NHTSA 401 - Docket System - 65 FR 19546 - April 11, 2000

DOT/NHTSA 402 - Highway Safety Literature Personal Author File - 65 FR 19547 - April 11, 2000

DOT/NHTSA 411 - General Public Correspondence System - 65 FR 19547 - April 11, 2000...

NHTSA Privacy Impact Assessments

Privacy Impact Assessment (PIA) describes a process used to evaluate the collection of personal data in information systems. The objective of a PIA is to determine if collected personal information data is necessary and relevant. To accomplish this objective, a PIA is used to identify and...

Automated Driving Systems: A Vision for Safety

Automated Driving Systems: A Vision for Safety

The U.S. Department of Transportation (DOT) through the National Highway Traffic Safety Administration (NHTSA) is fully committed to reaching an era of crash-free roadways through deployment of innovative lifesaving technologies. Recent...

How Connected Vehicles Work

In 2018, more than 37,000 people were killed needlessly in traffic crashes. In addition to the devastating human toll and suffering from motor vehicle crashes, the American taxpayer supports more than $140 billion per year in costs for emergency response, fatalities, injuries, and property...

Safety Band Maps and Infographics

Interactive Map: Connected Vehicle (CV) Deployments in the U.S. by State  Slide Presentation: 5.9 GHz Safety Band Transportation Communications--Incorporating Secure 5G Infographic: The 5.9 GHz Safety Band—an Investment in America's Transportation Safety Map:...

AV 4.0

AS the world leader in technology, American innovation and ingenuity have historically transformed how we travel and connect with one another. Under this Administration, President Donald J. Trump has stressed the importance of ensuring America’s continued leadership in emerging technologies,...