Skip to main content

Workzone vests get wired for sound, thanks to Virginia Tech university

Researchers at Virginia Tech university in the United States have put small radio sensors on or inside vests to allows cars to “talk” to one another, roadside infrastructure, and personal electronics such as mobile phones. If a collision is about to occur between a vehicle and a worker, the vest can warn the worker in a matter of seconds about the impending crash. Likewise, the motorist will receive a dashboard notification.The instantaneous alert is possible by short-range communication, according to a sta
December 11, 2015 Read time: 4 mins
Safety can be improved for onsite personnel in workzones
Researchers at Virginia Tech university in the United States have put small radio sensors on or inside vests to allows cars to “talk” to one another, roadside infrastructure, and personal electronics such as mobile phones

If a collision is about to occur between a vehicle and a worker, the vest can warn the worker in a matter of seconds about the impending crash. Likewise, the motorist will receive a dashboard notification.The instantaneous alert is possible by short-range communication, according to a statement by Virginia Tech.

“Any warning we can give them is better than no warning at all,” said Kristen Hines a doctoral student with the Bradley Department of Electrical and Computer Engineering. She is helping lead the combined effort of the College of Engineering and the Virginia Tech Transportation Institute.

The InZoneAlert vest remains an ongoing project and it has gone through numerous design changes. As of 2014, the vest portion of the alert system – which incorporates GPS tracking – that evolved from the size of a backpack-sized apparatus to that of a mobile phone. Upcoming versions could shrink it to the size of a pack of gum, the university said.
The vest or similar clothing with GPS-oriented dedicated short-range radio could have wide-ranging uses. “There are a lot of roadside workers who are not necessarily on construction sites but who could benefit from such a warning,” said Tom Martin, a professor with the College of Engineering.

Martin also researches “smart” clothing – wearable items with woven-in electronic components that can provide data such as a person’s movements. “There are folks monitoring the status of interstates, officers [and] first responders. Anyone who has to be out on the interstate with passing vehicles could benefit from an individualised warning.”

Martin started the effort in 2013 with then-doctoral student Jason Forsyth, who graduated in 2015 with a doctorate in computer engineering and is on faculty at York College of Pennsylvania.

The team wants to make the InZoneAlert vest user-friendly, part of a worker’s established uniform or equipment. The alert itself also must be distinct but not jarring.

“We don’t want to add to their cognitive load,” said Martin. “We don’t want to give them false alarms. We just want to give them a few seconds ' notice to know that someone is coming toward them and then give them a chance to get out of the way.”

In early tests of the InZoneAlert system, Martin said that predictions for potential vehicle-worker conflicts met a 90% success rate.

Various alerts are being tested and must work within a loud, tough, dirty and busy construction site.
“One possible way to get over that challenge is to use other things that the worker is using,” said Hines. “Let’s take the hearing protection, for example. The auditory alert could be placed inside of the hearing protection in a work zone, which means that it can always be heard over everything. Another possible way is to include other alerting methods, such as tactile alerts that use a person’s sense of touch. This ranges from vibrations or your clothing suddenly shrinking on you [or] cuffs compressing.”

The Virginia Tech Transportation Institute will be key in testing the vest in real-world demonstrations that involve highway-speed traffic. The institute already is spearheading work on vehicle-to-vehicle to vehicle-to-infrastructure communication at the Virginia Smart Road in Blacksburg, as well as the Interstate 64 corridor near Fairfax, Virginia. Closed-course tests would occur on the Smart Road.

“We have been simulating the concept in demos done on the Smart Road along with other applications such as animal detection, collision avoidance, etc.,” said Andy Alden, a researcher with the institute.

Funding for the project has so far come from inside the College of Engineering, the Virginia Tech Transportation Institute and Virginia Tech’s Institute for Creativity, Arts, and Technology, of which Martin is associate director.

Related Content

  • Controls rethinks compression machines
    August 12, 2019
    CONTROLS is aiming to stay one step ahead of its competitors with a new suite of fully automatic compression machines which also offer an extra dimension of connectivity, inside and outside the laboratory - Kristina Smith writes It is just over 50 years since CONTROLS started selling its first testing equipment, beginning with compression machines. Today, it is redeveloping all its compression machines, unveiling two out of a new range of four at this year’s bauma exhibition in March. “CONTROLS has comp
  • New EV range extension technology report available
    December 4, 2014
    A new report from IDTechEx Research highlights the value of electric vehicle range extenders. This business segment could be worth some $125 billion. The new IDTechEx Research report “Range Extenders for Electric Vehicles 2015-2025” analyses and forecasts options and trends for range extenders in all applications. The report highlights that over $125 billion will be spent on this technology by 2025. Recent developments for the sector include specialist three cylinder engines and gas turbines as range ext
  • Getting a foothold on road safety
    September 3, 2012
    The Indian businessman, Rohit Baluja, has become one of the most articulate and outspoken advocates of road safety in developing countries. A leading figure in his country’s shoe industry, Baluja was converted to the cause that has become his lifelong passion during regular business trips to Europe