The setting at Oakmont Country Club features rolling hills, lush greenery, an abundance of wildlife and the occasional blaring truck horn.

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The country club is home to the 107th U.S. Open this week. The world class golfers tackling the course not only have to contend with massive bunkers like the Church Pews and the club's notoriously fast greens, but they also have to play through the ever-present noise from the Pennsylvania Turnpike.

This stretch is one of the busiest sections of the toll road in Western Pennsylvania. More than 40,000 vehicles pass by each day, said turnpike spokesman Carl DeFebo.

He said about 18 percent of the traffic is trucks. On the opening day of the golf tournament this traffic provided a constaqnt chatter of tires, brake noise and the occasional honk.

Insurance agent Bill Hawthorne took the day off from his office in Pittsburgh's Hill District to observe the action from a chair at Oakmont's ninth hole, just a few yards from the turnpike. He said the doors on the portable toilets were distracting, too, and that most golfers took the noise in stride.

Golfer Geoffrey Sisk of Marshfield, Mass., may have disagreed. Already two strokes over par at the ninth, he seemed ready to impale his club in the turf after a truck horn disrupted his shot off the tee.

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