Frost & Sullivan Study Recognizes Inrix as the Leading Provider of Real-Time Traffic Information
Independent Research Validates Accuracy and Superior Market Coverage
of Inrix Smart Dust Network Relative to Traffic.com's Road Sensor Network

In an independent research study designed to evaluate the accuracy and coverage of real-time traffic data, Frost & Sullivan selected Inrix as the leading provider of real-time traffic information in the United States.

The "Real-Time Traffic Flow Ground Truth Testing Methodology Validation and Accuracy Measurement" study, published today by Frost & Sullivan, involved extensive analysis of Inrix and Traffic.com real-time traffic and speed information. The report compared the two leading traffic flow information providers in the areas of accuracy, nationwide coverage and road miles covered.

To receive Frost & Sullivan's study, send an e-mail message to: info@inrix.com

The report finds that while both Inrix and Traffic.com provide strong and comparable levels of accuracy in reporting travel times on the tested routes, Inrix real-time flow data covers significantly more roadways across the country, including 33% more metropolitan areas and three to seven times the miles of roadway coverage within each metropolitan area.

The results are a clear validation of Inrix's unique approach to collecting traffic information. "Inrix's Smart Dust Network provides a major advantage," said Veerender Kaul, Program Manager at Frost & Sullivan. "Instead of primarily relying on static DOT and radar sensor networks, Inrix is uniquely aggregating real-time data from over 625,000 GPS-enabled commercial vehicles and combining it with data from multiple private and public sources. Inrix's approach provides a scalable model enabling wide-spread road segment coverage of real-time speeds across the U.S."

The study is particularly significant for automotive and portable navigation device manufacturers, Web portals, fleets, and government agencies, as the results provide validation that the quality of data produced by Inrix's "Smart Dust Network" approach is equivalent to the sensor infrastructure-based approach currently in use by departments of transportation and Traffic.com. Inrix is the first company to successfully transform a large volume of anonymous, real-time GPS-equipped vehicle probe data into accurate traffic information on a nationwide scale.

As part of the study, a third party ground truth testing company drove key routes in three U.S. cities, including Philadelphia, PA; Washington D.C. and Providence, RI. Frost & Sullivan then compared the actual travel times from this 'ground truth testing' data with real-time speed and travel time data from Inrix and Traffic.com.

Although the two companies use very different methodologies for collecting traffic data, the ground truth testing analysis showed generally high accuracy (over 70 percent) for both Inrix and Traffic.com. In evaluating nearly 150 trials over 15 routes in the three cities, the average measured route travel time was within one minute of the actual travel time.

According to the study, Inrix came out significantly ahead of Traffic.com when considering total miles of road with traffic flow information in the three tested markets. Furthermore, Inrix's "Smart Dust Network" approach enables the company to provide real-time traffic flow data in many more metropolitan areas across the U.S. than any other traffic information supplier.

"This study is an important benchmark for the automotive and portable navigation industries that rely on accurate information for their customers and partners," said Inrix President and CEO Bryan Mistele. "The accuracy of real-time speed and traffic information, in addition to nationwide market coverage is a priority for Inrix."

Additional study highlights:

In the three U.S. markets tested in this study, which include Philadelphia (Traffic.com's home market of proprietary road sensors), Inrix has total road speed coverage of 3,450 miles compared to 600 miles of coverage by Traffic.com
	Philadelphia Real-Time Flow Comparison
	Maps of the road segments with real-time traffic flow (actual reported speed information) covered by Traffic.com and by Inrix in Philadelphia, August 2006. Source: Inrix and Frost & Sullivan
Overall, Inrix provides real-time traffic flow data in 43 metropolitan markets, compared to 29 for Traffic.com, when using standard Core Based Statistical Areas (CBSA)
	Provision of Flow Data by Inrix and Traffic.com (United States), August 2006. Source: Inrix and Traffic.com
Inrix has coverage of 130 markets of real-time incident data, while Traffic.com had real-time incidents in only 50 markets
Average errors for Inrix on drive times measured in the study were less than a minute across all the routes tested, with total accuracy measures above 70%
In 2 of the 3 markets tested, Inrix scored higher than Traffic.com in absolute accuracy (mean error in minutes)

• Full Press Release
• To receive Frost & Sullivan's study, send an e-mail message to: info@inrix.com

Upcoming Events
Please join Inrix at these upcoming industry events.
To arrange a private meeting, contact: busdev@inrix.com

deCarta DevCon October 4-5, 2006 San Francisco, CA

Location-enhanced applications and services have become the common canvas for market differentiation and compelling end-user experience. As the provider of geospatial software solutions to the industry's most successful application developers, deCarta is at the center of this phenomenon. deCarta devCON'06 is a unique opportunity to get first-hand knowledge from the technologists and experts who are bringing those new capabilities to market. Inrix Vice President of Marketing Scott Sedlik will speak on the How Can I Differentiate My Application with Data panel on October 5 from 3:00 PM to 4:00 PM.

TMC Forum October 7-8, 2006 London, UK
The TMC Forum Showcase is an annual industry-only event showcasing the state of the art in TMC and broadcast traffic information. This is the weekend directly before the 2006 ITS World Congress, which will also be held at ExCeL conference centre in London. The themes for this year will be: "Exploiting New Content" and "Coexistence of Services - Challenges and Opportunities." Dr. Oliver Downs, Inrix Principal Scientist, will speak at the TMC Forum.
ITS World Congress October 8-12, 2006 London, UK
This annual event rotates between Europe, the Americas and Asia-Pacific region and comes to the UK for the first time in 2006. The international ITS community will participate in this prestigious event in significant numbers and there will be many opportunities to take part as a delegate, speaker, exhibitor and visitor.
The ITS World Congress is organised by ERTICO in co-operation with ITS United Kingdom, Department for Transport, Department of Trade and Industry and Transport for London. It is part of the highly successful ongoing series of ITS World and European Congresses. These events have received the highest support throughout the ITS world in government, industry and other organisations and continue to do so in this rapidly growing field. Featured Inrix speakers and panelists at ITS World Congress include Kush Parikh (Vice President of Business Development), Dr. Oliver Downs (Principal Scientist), and Rick Schuman (Vice President of Public Sector).
2006 ATA Management Conference & Exhibition October 28-31, 2006 Dallas, TX
This annual event rotates between Europe, the Americas and Asia-Pacific region and comes to the UK for the first time in 2006. The international ITS community will participate in this prestigious event in significant numbers and there will be many opportunities to take part as a delegate, speaker, exhibitor and visitor. Sponsored by the ATA (American Trucking Association), this conference will focus on key issues for the trucking industry & innovative solutions that can help fleet companies operate more effectively & profitably.

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