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Traveler Information > En Route Information > 511


Regional and/or multimodal traveler information programs intended for travelers en-route to their destinations may make use of 511 telephone systems, in-vehicle devices, radios, or other wireless devices such as pagers and PDAs.


The use of vehicle probes allowed North Carolina and South Carolina to monitor traffic at a quarter of the cost of microwave or radar detectors.(August 12, 2010)

New Jersey Department of Transportation enhanced incident management efficiency by using I-95 Corridor Coalition’s Vehicle Probe Project data, experiencing an estimated savings of $100,000 per incident in user delay costs.(August 12, 2010)

New York State DOT TMC operators and New York State Thruway Authority staff were able to reduce traffic queues by 50 percent using vehicle probe data available through the I-95 Corridor Coalition.(August 12, 2010)

In Kentucky, 94 percent of travelers surveyed said they were satisfied with the information provided by 511 Tourism Service operators. (May 2006)

An evaluation of the Arizona 511 telephone traveler information system found that more than 70 percent of users surveyed were satisfied with the enhanced content provided.(30 September 2005)

Customer satisfaction with 511 ranged from 68 to 92 percent in four deployments studied. (September 2005)

In Virginia, an evaluation of 511 services indicated 90 percent of callers found the service useful, and nearly half adjusted their travel plans based on the information provided.(January 2004)

Final Evaluation Report for the Greater Yellowstone Regional Traveler and Weather Information System (GYRTWIS)(12/30/2003)

Alaska's NewGen 511 Traveler Information System cost $440k to develop and $140k annually to operate.(April 2010)

Florida DOT District IV 2006 budget supports a variety of SMART SunGuide transportation management center programs.(January 2007)

From the 511 Deployment Coalition case study: total costs (to design, implement, and operate for one year) averaged $2.5 million among six statewide systems and $1.8 million among three metropolitan systems.(November 2006)

In Orange County, California, the cost of software for posting travel times on dynamic message signs (DMS) was $50,000.(9/22/2006)

The costs to operate and maintain the Kentucky 511 Traffic and Travel Information System tourism service for 2003 to 2006 was $4,138,213.(May 2006)

Florida DOT District IV 2005 budget supports a variety of SMART SunGuide transportation management center programs.(31 January 2006)

The cost of O&M at the Arizona TMC was estimated at $2 million per year.(January 2006)

The cost to enhance the Arizona regional, multi-modal 511 traveler information system was just under $1.5 million.(30 September 2005)

Annual operating costs for the Greater Yellowstone Regional Traveler and Weather Information Systems (GYRTWIS) 511 system in Montana were about $196,000 per year for 2004 and 2005.(July 2004 and July 2006)

Sample costs collected by the 511 Deployment Coalition represent what deployers may encounter when planning or implementing a 511 system.(May 2004)

The cost to implement the pre-enhanced Arizona Department of Transportation 511 system was estimated at $355,000; operating costs for 2002 were estimated at $137,000.(17 February 2004)

First year funding for the Nebraska 511 traveler information system was $120,000; estimated annual operations and maintenance costs are $110,000.(December 2001/January 2002)

Agencies that manage multimodal transportation corridors can use AMS methodology with ICM decision support systems to facilitate predictive, real-time, and scenario-based decision-making.(12/01/2016)

Future ICM systems will require new technical skill sets. Involve management across multiple levels to help agencies understand each other’s needs, capabilities, and priorities.(06/30/2015)

Enhance traffic flow in a regional, multi-state corridor by using vehicle probes to monitor real-time traffic conditions. (August 12, 2010)

Use vehicle probes to monitor traffic cost-effectively, manage incidents and queue ups proactively, reduce delays, and increase traveler satisfaction along a multi-state transportation corridor.(August 12, 2010)

Adopt a long term perspective identifying a business reason or an operational need for ITS based solutions and embrace performance measures.(December 2009)

Beware of challenges involved in developing an integrated statewide operations system for traffic monitoring, incident data capture, weather information, and traveler information—all seamlessly controlled by a central software system. (01/30/2009)

To support statewide traveler information services, design and implement reliable interface software processes to capture incident data from the local and highway patrol police’s computer aided dispatch systems.(01/30/2009)

Use simple menu choices for 511 traveler information and realize that the majority of callers are seeking en route information while already encountering congestion.(01/30/2009)

Be flexible to use data from various sources, such as the highway police patrol’s incident data, user feedback, and monitoring stations, to develop a statewide traveler information system.(01/30/2009)

Make aggressive use of marketing to increase call volume and improve cost efficiency of 511 services deployment.(November 2006)

Collect high quality data with committed workers to help ensure reliable and consistent 511 services for tourism. (May 2006)

Ensure users have easy access to 511 operators and tourism information.(May 2006)

Adopt best practices for integrating emergency information into Transportation Management Center (TMC) operations to improve performance and increase public mobility, safety and security.(2/28/2006)

Invest in research and development for emergency integration.(2/28/2006)

Extend the application of emergency integration best practices to further improve emergency operations.(2/28/2006)

Integrate weather information into Transportation Management Center (TMC) operations to enhance the ability of operators to manage traffic in a more responsive and effective way during weather events.(2/28/2006)

Employ the core set of measures, as appropriate, to measure customer satisfaction with 511.(12/1/2005)

Address the technical issues associated with using Voice over Internet Protocol (VoIP) phone systems to access 511 and other N11 services.(December 2005)

Adhere to the proposed standard evaluation approach in order to facilitate high response rates and to collect reliable data on 511 implementation.(12/1/2005)

Carefully consider the overall design and content of the 511 customer survey questions. (12/1/2005)

Pursue a vigorous 511 marketing program, especially to promote new types of information targeted to specific user groups.(30 September 2005)

Expect to spend time and effort in testing and refining the voice recognition features of a 511 system.(30 September 2005)

Incorporate mechanisms for capturing user feedback for system evaluation, including the ability to intercept incoming 511 calls for survey or focus group recruitment.(30 September 2005)

Perform System Monitoring of 511 Systems.(September 2005)

Provide drivers with sufficient managed lane information that can be easily disseminated and understood. (2005)

Investigate procurement alternatives of leasing, buying, or building equipment to minimize operations and maintenance costs.(12/30/2003)

Allocate adequate staff time for planning and management oversight to monitor progress and address issues.(12/30/2003)

Provide accurate and timely road condition and weather forecast information to rural travelers in cold weather regions.(12/30/2003)

Design the 511 system to handle the surge in call volume during major events.(9/3/2003)

Perform before-research to determine what customers want from 511 services and continue to evaluate the system after implementation.(9/3/2003)

Make sure 511 Systems are customer and market driven to help ensure they are utilized by travelers.(9/3/2003)

Understand that deployment costs of 511 systems will vary based on system capabilities and anticipate the challenges of identifying these costs early in the process.(9/3/2003)

Recognize that interoperability is becoming an important issue in achieving the vision of a nationwide 511 system.(9/3/2003)

Improve management and operational procedures during a natural disaster by extending and supporting communication systems and networks. (8/1/2003)

Implement 511 using the Guidelines issued by the 511 Deployment Coalition.(April 2002)

Involve the private sector in the implementation of multiple advanced traveler information technologies.(30 May 2000)

Understand the market during the development of an Advanced Travel Information System (ATIS) to reduce project development uncertainty and produce a more functional end product.(10/19/1998)

Understand system standards and protocols to save time during the development of an Advanced Traveler Information System (ATIS).(10/19/1998)

Provide consistent and high-quality information to influence traveler behavior.(6/1/1998)