SONEM 2000 Signal Priority System Gets Green Light at 14 Intersections in Texas

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| Source: Unity Wireless Systems Corporation

SEATTLE, July 19, 1999 (PRIMEZONE)--Sonic Systems Corporation of Delaware (NASDAQ: ZSON) announced today that the City of West Lake Hills has installed the SONEM 2000 signal priority system for emergency vehicles at 14 intersections. The SONEM 2000 system is developed and marketed by Sonic Systems Corporation of British Columbia, a subsidiary of the Delaware company.

"We found Sonic's system to be the most user-friendly one out there," says Mike Elliott, Captain, Westlake Fire Department. "Our drivers don't have to do anything to make it work. Police and EMS transport can use it just because it's there. And there's no additional cost to equip each vehicle. That's big."

The installation in the Westlake suburban area outside the state capital of Austin, Texas is a cooperative venture of the Westlake Fire Department and the Texas Department of Transportation. After having gained familiarity with the performance of the SONEM 2000 through this installation, the Austin District Office of the Texas Department of Transportation - which serves 11 central Texas counties - has changed the procurement specifications in the Westlake area to include the SONEM 2000 in all new intersections within its jurisdiction, and to retrofit existing intersections with the SONEM 2000 based on available funding.

"This installation of the SONEM 2000 on a major traffic corridor can benefit the entire region," says Ron Featherston, National Sales Manager for Sonic Systems, BC. "Fire, ambulance, and police vehicles now have the ability to move more safely and quickly from Westlake and surrounding communities to the major medical facilities that are located in Austin."

The SONEM 2000 detects sound from emergency vehicle sirens and enables the traffic controller at intersections to give these vehicles a green light while holding other signal lights at the intersection to red. This acoustic-based signal priority system is used by transportation agencies and emergency service providers to promote safer and more efficient emergency response. ITS World magazine (May/June 1999) calls the SONEM 2000 "a new system (that) seems to be transforming the market" for signal priority.

Sonic Systems Corporation of British Columbia serves the Intelligent Transportation Systems (ITS) market with environmentally tolerant, sensor management platforms adapted to traffic signal prioritization for emergency services, and is a leading provider of acoustic-based signal prioritization systems.

Sonic's products are aimed at a North American market estimated to reach $425 billion and create almost 600,000 jobs by the year 2015, according to a 1997 study by the Electronics Industries Association and the Intelligent Transportation Society of America.

Sonic Systems Corporation of Delaware is a multi-faceted provider of technology to the Computing, Communications, and Intelligent Transportation Systems (ITS) industries in support of information movement and management applications.

Note: Sonic Systems, a Delaware corporation with offices in Seattle, Washington, is in no way affiliated with Sonic Systems, Inc., a California corporation with headquarters in Santa Clara, California, which provides Internet security solutions.


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