TraffiCalm Systems recently announced the release of all standard Manual on Uniform Traffic Control Devices (MUTCD) compliant sizes of sequencing chevrons, including 18in x24in, 24in x 30in, 30in x 36in and 36in x 48in, to meet high customer demand.
TraffiCalm Systems president John Ragan stated: “More and more customers are looking for ruggedised systems that help with lane departures on rural and urban highways.
“Since the Federal Highway Administration (FHWA) has designated sequencing chevrons as a proven low-cost safety countermeasure for roadway departures, state and local governments are deploying these systems as part of their systematic strategic highway safety plans and on troublesome spot locations.”
According to the FHWA, more than 28 percent of all fatal crashes were associated with horizontal curves. The average crash rate for horizontal curves is about three times that of other types of highway segments.
Advance curve ahead warning signs combined with sequencing chevrons can be an effective curve warning system and utilise LEDs to enhance standard chevron road signs.
According to John Ragan, TraffiCalm Systems Sign Alert Chevron meet the guidelines of MUTCD by completely outlining the shape of the chevron arrow, not just illuminating the corners, so the driver can clearly see the direction and shape of the arrow, not just flashing lights.
TraffiCalm Systems manufactures the sequencing chevrons and other traffic calming devices at their facility in Post Falls, Idaho. The sequencing chevrons are typically solar powered and utilise wireless communications between controllers and collaborators to ‘sequence’ the flashing LEDs in a pattern that warns the driver of the
horizontal curve.
Idaho Department of Transportation’s Ed Mail stated: “We like to use the TraffiCalm Sign Alert Systems due to their rugged design and ease of programming and installation.
“Their whole system can be fully submerged in water and still operate. If one of the sequencing chevrons get knocked down, we can replace the sign and program it in a matter of minutes in the proper sequence and time. That used to take us days with other systems.”
John Ragan said: “We are proud of designing and manufacturing systems that hopefully save lives. With these new sizes now available, cities, counties and states can deploy these safety systems on any type of roadway that has dangerous curves.”
