Skip to main content

Caltrans upgrades video wall

When Caltrans district 7 began the first phase of a multi-phase audio-visual (AV) system upgrade at its Los Angeles facility, it contracted with Electrosonic to create a brighter, more reliable video wall for traffic monitoring that takes advantage of the latest in projection technology. “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 traffi
February 26, 2013 Read time: 3 mins
RSSWhen 3879 Caltrans district 7 began the first phase of a multi-phase audio-visual (AV) system upgrade at its Los Angeles facility, it contracted with 6683 Electrosonic to create a brighter, more reliable video wall for traffic monitoring that takes advantage of the latest in projection technology.

“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, road damage or an accident, they can magnify that feed on the video wall. The video wall is integral to 24-hour traffic management.”

The existing video wall comprises a twelve-screen centre unit in a four by three configuration flanked by a pair of six screen three by two units. The giant wall features 80-inch diagonal screens in the centre and 52-inch screens on the sides.

The standard format of the wall has single camera feeds on the side screens and two by two graphic traffic patterns on the centre screen with single-camera feeds surrounding them. “They monitor heavy traffic volume locations and can bring any one of those feeds up on the larger central display as needed,” Fronte explains.

The wear and tear of more than five years of constant operation had taken their toll on the existing rear-projection engines and begun to degrade the facility’s ability to monitor traffic, so Electrosonic replaced the video wall engines with 7336 Christie one-chip SXGA displays to take advantage of improved projector quality. Christie RPMSP-D132U displays were selected for the centre screen and RPMX-D132U displays for the side screens.

The side projectors were installed in existing cabinets behind the video wall; the centre projectors were placed in a huge metal framework previously built by Electrosonic.

“Caltrans district 7 has the most spacious rear-projection room I’ve ever worked in,” says Fronte. “It’s very well thought out, so replacing the engines was quite simple.”

The primary challenge for the installation was working in conjunction with the 24/7 hours of the facility. “We couldn’t take down the wall during rush hours, so we swapped out one projector at a time to allow for continuous operation,” Fronte notes.

Video wall control is achieved using a Quantum processor previously installed by Electrosonic. The Crestron touchscreen control system that operates the wall turns the system on and off and monitors lamp life was modified to accommodate the new projector engines.

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

For more information on companies in this article

Related Content

  • Data collection becoming a crowded market
    October 26, 2017
    New ways of gathering data can revolutionise traffic and travel management, so is the writing on the wall for the traditional methods? Jon Masters reports. There are two big industries that stand to be revolutionised by massive increases in data – healthcare and transportation, says Finlay Clarke, the UK managing director of the smartphone sat nav traffic app, Waze. “At present we’re really only at the start of how cities, in particular, will be transformed,” he says.
  • Continental supplying head-up displays
    March 23, 2012
    Product shows speed and navigation data, as well as warnings, in driver’s field of vision
  • Sice systems future proof Fehmarnbelt Tunnel
    April 4, 2023
    Picking up the electro-mechanical contract for the Fehmarnbelt Tunnel was a milestone, according to David Calero Monteagudo, head of global ITS and tunnel business for Spanish company Sice. David Arminas finds out more
  • Aberdeen opts for APT EV charging
    March 13, 2014
    Aberdeen City Council in Scotland has chosen electric vehicle (EV) charging from APT Technologies to support its aim to reduce air and noise pollution through encouraging the use of more sustainable and quieter transport modes. The contract also includes a three-year maintenance package. The first installation saw eight double 7kW units, two wall-mounted 7kW units and one double mixer post with 7kW and 3kW power supplies installed into local authority premises to service fleet vehicles and give council e