An official website of the United States government.
Here's how you know
The .gov means it's official.
Federal government websites always use a .gov or .mil domain. Before sharing sensitive information online, make sure you’re on a .gov or .mil site by inspecting your browser's address (or "location") bar.
This site is also protected by an SSL (Secure Sockets Layer) certificate that's been signed by the U.S. government. The https:// means all transmitted data is encrypted — in other words, any information or browsing history that you provide is transmitted securely.
The U.S. Department of Transportation’s Federal Highway Administration (FHWA) today launched a series of meetings with key stakeholders to discuss the ramifications of automated vehicles on U.S. roads. The “national dialogue” meetings are being held across the country to engage a diverse group of stakeholders from industry and the public sector to understand the key […]
U.S. DOT Federal Highway Administration: Traffic Volume Trends is a monthly report based on hourly traffic count data reported by the States. These data are collected at approximately 4,000 continuous traffic counting locations nationwide and are used to estimate the percent change in traffic for the current month compared with the same month in the […]
The modern highway system has experienced considerable changes since the interstate system and other limited access highways were first designed and constructed in the mid-1900s. Population movement outside of cities and the increased movement of passenger and freight traffic have led to increased congestion and necessitated new approaches for maintaining mobility. Mobility and capacity enhancements, […]
FHWA-HRT-17-066 The Federal Highway Administration established the Development of Crash Modification Factors (DCMF) program in 2012 to address highway safety research needs for evaluating new and innovative safety strategies (improvements) by developing reliable quantitative estimates of their effectiveness in reducing crashes. The ultimate goal of the DCMF program is to save lives by identifying new […]
The big challenge posed by Secretary Chao is one we have recognized from the outset, and we totally agree with her today. However, this problem can easily be overcome by keeping all of the driver controls intact and installing and testing (by the vehicle purchasers) of a kill-switch that instantaneously turns over control to the driver. This can be phased out over […]
The U. S. Department of Transportation said it is launching an initiative that includes two pilot programs to modernize its own data analysis and integrate traditional datasets with new “big data” sources to gain insights into highway safety. “Advances in data science have the potential to transform the department’s approach to safety research and provide […]
Instead of cars driving as individual units on highways, automated driving systems (ADS) allow cars to connect and exchange information, enabling coordinated movements. That can mean more capacity on roads, and faster, more efficient travel. In one study, a car platooning proof-of-concept with five Cadillacs with automated longitudinal control was tested and evaluated at Aberdeen Proving Ground, a U.S. […]
AASHTO: Motor vehicle travel on all U.S. highways and streets increased 1.2 percent in October from a year earlier – adding 3.3 billion more vehicle miles – and continued a string of record-high volume levels. The Federal Highway Administration in its latest monthly “Traffic Volume Trends” report said motorists racked up an estimated 275 billion […]
Bureau of Transportation Statistics: Transportation plays a vital role in the American economy: it makes economic activity possible and serves as a major economic activity itself. Transportation Economic Trends 2017 highlights important trends in transportation and the economy and explains related economic concepts and data sources for a general audience.