Caltrans District 7

A Clear View of Traffic
Los Angeles, CA

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Caltrans District 7 called upon Electrosonic to upgrade the audio-visual system at its Los Angeles facility with a new videowall that takes advantage of the latest in projection technology. Used for traffic monitoring, the videowall comprises a 12-screen center unit in a 4x3 configuration flanked by a pair of 6-screen 3x2 units. The giant wall features 80-inch diagonal screens in the center and 52-inch screens on the sides.

“Caltrans District 7 has more than 400 cameras on the highways of Los Angeles and Ventura counties,” says Electrosonic project manager Guy Fronte. “They can review camera feeds 24/7 in the facility and when there’s a traffic event, they can magnify that feed on the videowall.”

Caltrans District 7

After more than five years of constant operation, the existing rear-projection engines had begun to degrade, so Electrosonic replaced the videowall engines with Christie RPMSP-D132U displays for the center screen and RPMX-D132U displays for the side screens. The side projectors were installed in existing cabinets behind the videowall; the center projectors were placed in a huge metal framework previously built by Electrosonic.

Electrosonic swapped out one projector at a time to allow for continuous operation throughout the installation. A touchscreen control system, previously installed and now modified by Electrosonic, operates the new videowall, turns the system on/off and monitors lamp life.

Electrosonic also furnished 48 spare lamps and is providing an extensive two-year service contract, which includes complete parts and labor, unlimited telephone support, proactive preventive maintenance visits and eight-hour response time on weekdays.