CDOT finds a low-cost answer to its cellular dead zones, making canyon calling possible

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Since last fall, CDOT has been testing a South Korean communications technology through a Denver startup Eucast Global, along a four-mile stretch east of the Eisenhower Tunnel, where the terrain makes it difficult for cellular signals.

massive rockslides in Glenwood Canyon in 2021

And every day, along long stretches of Colorado highways, cellular service can be spotty or nonexistent, causing employees and vehicles to disappear off the radar screen. For a snowplow driver navigating an isolated road in a blizzard, it can be the equivalent of a pilot losing all contact with the control tower in a thunderstorm. No one would hear a distress call.

“The test results were amazing and very impressive,” said Bob Fifer, deputy director of operations at CDOT. “We went from zero cellular services to a full signal with video streaming, calling, talking.” “We have identified a technology that is faster, more efficient and less expensive,” said Gary Sumihiro, an international trade consultant who came across the technology while in Asia. Eucast Global has the rights to deploy the technology to the Americas and Europe, and is starting with Colorado. The goal is to eventually manufacture the devices domestically.

 

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