Skip to main content

Intrusion warning improves workzone safety

Transpo Industries launched a unique concept in work zone intrusion protection last year. The SonoBlaster impact-activated safety device warns both roadway workers and errant vehicles simultaneously. When impacted, the unit's built-in CO2-powered horn blasts loudly (125 dB) for 15 seconds, signalling crews that their work zone has been violated. This provides critical reaction time to move out of harm's way. The company says there are also resultant safety benefits for the driver, who may be able to take ev
January 31, 2012 Read time: 1 min


Transpo Industries launched a unique concept in work zone intrusion protection last year.

The SonoBlaster impact-activated safety device warns both roadway workers and errant vehicles simultaneously. When impacted, the unit's built-in CO2-powered horn blasts loudly (125 dB) for 15 seconds, signalling crews that their work zone has been violated. This provides critical reaction time to move out of harm's way. The company says there are also resultant safety benefits for the driver, who may be able to take evasive action.

 Since its launch, Transpo says that as a result of customer feedback from deployments in over 27 US states as well as seven different countries, a stackable cone bracket has been added to the device so the Sonoblaster can remain mounted and ready to use on a work truck.

Related Content

  • Øresund bridges the front line for border crossing traffic
    September 15, 2016
    Timothy Compston considers the challenges faced by the operators of the Øresund Bridge between Denmark and Sweden, the largest structure of its kind across Europe. In light of the concerns about the ongoing security threat and the unprecedented flow of migrants, many of the countries that make up the Schengen Area in Europe have re-introduced border controls. For its part, Sweden has rolled out ID checks for train, bus and ferry passengers from Denmark placing the landmark Øresund Bridge very much on the fr
  • Econolite keeps an open mind
    May 11, 2021
    If we’re going to take advantage of new technologies to improve safety, collaboration at the traffic management cabinet edge is vital, thinks Eric Raamot of Econolite
  • 3M sees big potential in ITS sector
    December 16, 2013
    Having re-entered the ITS market, 3M is busy shaping the future technology for vehicle detection, tolling and parking, as Colin Sowman discovers. Having sold off its Opticom business in 2007, 3M effectively re-entered the ITS market last year paying $110 million for Federal Signal Technology Group (FSTech) – but why?
  • IBTTA’s Jones sees turbulent times and a bright future for tolling
    November 10, 2017
    Colin Sowman talks to IBTTA’s Pat Jones about the future of tolling in a fast-changing world. Pat Jones may have been executive director and CEO of the International Bridge, Tunnel and Turnpike Association (IBTTA) for 15 years but in his words: “Never before have I seen so much change coming so fast in the transportation and tolling industry.” Amidst all this change, tolling companies are asked to provide funding for roadway building or improvements which will be repaid for over, say, a 30-year concess