511 Traveler Information
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Problem: Access to 511 traveler information systems remains limited
Telephone services for travelers provide real-time information about work zones, traffic incidents, and other causes of congestion. They allow travelers to make more informed decisions about their travel routes or modes, and increase safety by helping motorists avoid areas with congestion or incidents. The U.S. Department of Transportation (USDOT) petitioned the Federal Communications Commission in 1999 for a three-digit dialing code for travel information, and was assigned 511 in 2000. In 2001, the Cincinnati, OH area became the first in the country to use 511 for travel information.
Why is 511 needed?
Before the 511 dialing code was assigned for travel information, more than 300 different telephone numbers provided travel information in the United States. A test drive in 1999 showed that 11 different numbers were required to access travel information on a trip from Washington, DC to New York, NY. As 10-digit phone numbers and new area codes proliferate, a single, easy-to-remember number will help local and interstate travelers and shippers avoid delays and save time.
How widespread are 511 services?
More than 81 million Americans, or 28 percent, now have access to 511 services. Since 2001, systems have been deployed in all or parts of Alaska, Arizona, California, Colorado, Florida, Iowa, Kansas, Kentucky, Maine, Minnesota, Montana, Nebraska, New Hampshire, North Carolina, North Dakota, Ohio, Oregon, Rhode Island, South Dakota, Utah, Vermont, Virginia, and Washington. Other States are planning to implement 511 systems.
Putting It in Perspective
- Over 1.2 million calls were made to 511 in June 2005, bringing the total number of 511 calls to more than 36 million.
- Almost 30 percent of Americans have access to 511 services.
- By 2006, half the country is expected to have 511 access.
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Solution: Increasing access to 511 services will help travelers
make better decisions
The USDOT is facilitating national implementation of 511 systems to make real-time
traveler information more widely available to motorists. It is working with a
511 Deployment Coalition that includes the American Association of State Highway
and Transportation Officials, Intelligent Transportation Society of America,
and American Public Transportation Association.

What Federal assistance is available for implementing 511 systems?
The Federal Highway Administration (FHWA) offers grants of up to $100,000 to
States to develop 511 implementation plans. Forty-four States have received grants.
States that already have plans can use the funds to cover the costs of converting
to 511 or developing 511 services. FHWA offers technical assistance through its
division offices in every State. FHWA also is funding a model deployment program
in Arizona.
How do States fund 511 programs?
Implementation expenses for 511 systems, like other traveler information services,
are eligible for regular Federal-aid highway funding. Local or State transportation
funds also are used to pay for 511 systems, and in general, are the only funds
used to pay for day-to-day system operations.
How does a typical 511 program work?
A 511 system relies on intelligent transportation systems technologies to collect
and disseminate traveler information. Callers access the service by dialing 511
from any telephone. They hear a menu of available information on highways and
public transit and indicate their choices by using the telephone's touch pad
or, for systems with voice recognition technology, by voice. Some 511 systems
offer premium services such as personal routing instructions or reservation services,
which may involve additional charges.
Successful Applications: Research shows 511 increases use
of traveler information services
Research indicates that public demand and use of telephone services for traveler
information increase when systems use 511 instead of other numbers. Systems that
have converted existing telephone numbers to 511 have experienced a 300-500 percent
increase in call volume.
One study showed that 45 percent of San Francisco, CA travelers who received
information from the area's Travel Advisory Telephone System changed their travel
plans, compared to 25 percent of travelers altering their plans based on television
or radio broadcasts.
Benefits
- Provides an easy way to obtain travel information
anywhere in the country.
- Helps travelers make better decisions on travel
routes and modes.
- Promotes safety by directing motorists away from
incidents and congestion.
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Additional Resources
The 511 Deployment Coalition has developed quality and service guidelines for
511 systems. The guidelines and other tools for 511 deployment are available
at www.fhwa.dot.gov/trafficinfo/511.htm.
For More Information Contact:
Robert Rupert, FHWA Office of Operations
robert.rupert@fhwa.dot.gov, 202-366-2194
Mac Lister, FHWA Resource Center
Mac.Lister@fhwa.dot.gov, 708-283-3532
To request additional copies of this publication, contact:
Carin Michel, FHWA Resource Center
Phone: 410-962-2530
Email: carin.michel@fhwa.dot.gov
TaMara McCrae, FHWA Corporate Research and Technology
Phone: 202-493-3382
Email: tamara.mccrae@fhwa.dot.gov
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