COLUMBIA, MD, September 18, 2002 – In the upcoming release of RADAR® 74 next week, Arbitron (NYSE:ARB) will add two new networks¾ ABC Morning News Network and ABC Daytime Direction¾ to its roster of RADAR-rated radio networks. This brings the total number measured to 33 networks. RADAR (Radio's All Dimension Audience Research), a division of Arbitron Inc., measures national radio audiences and the audience size of network radio commercials and commercials within programs aired on these 33 radio networks. The measured networks are operated by ABC Radio Networks, American Urban Radio Network, Premiere Radio Networks and Westwood One Radio Networks.

The initial findings contained in the RADAR 74 Radio Usage Report indicate that over the course of a typical week, radio reaches upscale consumers: 96 percent of adults 18+ who live in a household with an income of $50,000 or more.

Bruce Supovitz, vice president, National Radio Services, said, "The growth in RADAR networks from 20 in 1998 to 33 in 2002 is a strong statement for both RADAR and network radio. RADAR’s quality measurement of network radio continues to give advertisers a wide variety of choices to reach affluent consumers."

The release of RADAR 74 is the second phase of the transition from telephone to diary measurement for the RADAR service. The RADAR 74 report uses 25,000 diaries and 6,000 telephone interviews, bringing the total sample up to 31,000 for the July 2001 – June 2002 survey period.

By the release of RADAR 76 in March 2003, RADAR reports will be based on an annual sample of 50,000 radio diaries¾ more than four times the original sample of 12,000 telephone respondents.

Over the course of a week, radio reaches more than 224 million people, or 95 percent of all Persons 12 and older. And radio doesn’t take the weekend off¾ more than 184 million people, or 78 percent of all Persons 12+, tune to radio on Saturday or Sunday.

While Morning Drive (Monday-Friday, 6A-10A) is considered prime time for radio, the medium also reaches significant numbers of listeners the rest of the day.

Radio, with a format for virtually every age and taste, has a near universal demographic appeal.

Radio is the true "go anywhere" medium, reaching people where other media cannot.

Ninety-seven percent of working women tune in to radio weekly. On weekends, working women continue to relax with radio.

RADAR (Radio's All Dimension Audience Research) is a national radio ratings service that measures audiences to radio commercials aired on 33 radio networks operated by ABC, American Urban Radio Network, Premiere and Westwood One. RADAR 74 reflects the second phase-in of diaries into the RADAR radio listening base. By the release of RADAR 76 in March 2003, RADAR reports will be based on an annual sample of 50,000 radio diaries.

Arbitron Inc. (NYSE: ARB) is an international media and marketing research firm serving radio broadcasters, cable companies, advertisers, advertising agencies and outdoor advertising companies in the United States, Mexico and Europe. Arbitron’s core businesses are measuring network and local market radio audiences across the United States; surveying the retail, media and product patterns of local market consumers; and providing application software used for analyzing media audience and marketing information data. Arbitron Webcast Services measures the audiences of audio and video content on the Internet, commonly known as webcasts. The Company is developing the Portable People Meter, a new technology for radio, TV and cable ratings.

Arbitron’s marketing and business units are supported by a world-renowned research and technology organization located in Columbia, Maryland. Arbitron has approximately 800 full-time employees; its executive offices are located in New York City.

Through its Scarborough Research joint venture with VNU Media Measurement & Information, Arbitron also provides media and marketing research services to the broadcast television, magazine, newspaper and online industries.

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