New signage system reduces accidents

摘要

The Terwiliger Curves on 1-5, south of Portland, Ore., is a challenging section of freeway. The curving section is squeezed between a high rock cliff to the west and the Willamette River to the east. The roadway snakes its way into Portland through a number of sharp curves and a posted speed of 50 mph. Bounded in both directions by concrete barrier and a narrow median, and with traffic volumes over 155,000 vehicles per day and growing, this portion of 1-5 continues to be a section demanding caution for commuters and local Oregonians, visitors and the Oregon Department of Transportation (ODOT).