Tag Archives: Specialty

Articles, news and posts about ELTEC specialty systems

Traffic Control/Work Zone (IMSA Mar-Apr ’09)

Solar Powered Work Zone Speed System Developed

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In a highway construction zone when a lower speed limit is posted but no workers are present or visible impairment is evident, the lower speed limit looses credibility. Drivers perceive no good reason for slowing down and tend to maintain their speed.

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CDOT Sharp Curves Warning (IMSA Mar-April ’11)

CDOT’s “TIGHT CURVES” System Reduces Accidents

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States with mountainous terrain frequently have ‘dead man curves’. US Hwy 50 in Colorado has two such curves paral-leling the Arkansas River. In the past, the canyon corridor between mile markers 230-231 averaged three truck rollovers annually. Spillage from the truck’s fuel combined with hazardous cargo took weeks or months to clean up. Cars consistently damaged the guardrail and replacement was frequent. In one area the drop-off is 80 feet. Colorado DOT installed stronger 3-rib, more deeply anchored guardrails, but the hazard still existed.

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