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

  • Felix Scheuter, of Haenni Instruments, on effective highway weight enforcement
    September 26, 2013
    Felix Scheuter, managing director at Haenni Instruments, the renowned Switzerland-based mobile scales manufacturer, gives World Highways his views on how best to ensure effective highway weight enforcement The main danger for any road is its gradual destruction by overloaded heavy goods vehicles (HGVs). The more frequently such vehicles use a highway, the faster it is destroyed. Mobile patrol teams using mobile weighing scales are a highly effective way to enforce weight limits aimed at protecting ro
  • Barriers tailor-made for Swedish motorway project
    December 4, 2014
    Traffic management barriers developed by Belgian access control systems are being used on the Norra Länken motorway project in Sweden, supplied through its local partner Swarco. Built in cooperation with the city of Stockholm and co-financed by the European Union, Norra Länken is five kilometres long with four kilometres in tunnels and is said to be northern Europe’s largest road tunnel project. Two types of barrier have been installed on the project, the BL77 security barrier and the extra long BL52
  • McCain to install 1,500 ATC cabinets in Los Angeles
    July 2, 2018
    McCain is to deliver 1,500 advanced traffic controller (ATC) cabinets to Los Angeles. The company says these models include a 32-channel operation and safety enhancements for installers. The one-year project is an agreement with the City of Los Angeles Department of Transportation (LADoT). Traffic control cabinets come with computers and sensors which control traffic signal timing to help improve the safe movement of vehicles and people. ATC standard cabinets feature a lamp-out detection functio
  • Safeguarding cities against wrong-way drivers
    June 10, 2024
    Thermal imaging and artificial intelligence analytics provide the best path towards preventing deadly auto accidents, explains Stefaan Pinck of Flir