Flyover Traffic Rings

One in Athens, Greece connects two arteries to a freeway (Attica Tollway, top.)

The other in Shanghai, China removes pedestrians from a complex 5-approach roundabout (bottom.)

Circuit of the Americas: Racing to the Finish

"When in 2010 the city of Austin, Texas, was awarded the United States Grand Prix for 10 years, plans to construct the Formula 1 racetrack there, the Circuit of the Americas, quickly got under way, and an unlikely midsize civil engineering and surveying firm was awarded the civil engineering design contract."

This is a fascinating story of infrastructure development for a top flight world sporting event. Read this open article starting on page 64 of the Civil Engineering Magazine, May 2013 issue, of the American Society of Civil Engineers: Racing to the Finish.