Pearl River Necklace bridge: a twisted solution to an unusual traffic problem. Luckily there aren’t many countries that drive on the opposite side of the road and share borders. However, they do exist, such as China, which drives on the right, and the former British colony of Hong Kong, and former Portuguese colony of Macau, both which drive on the left. This can pose an interesting problem for engineers and road planners, but Dutch architectural firm, NL Architects, has come up with a bridge with a twist – a concept that not only puts the drivers on the correct side of the road physically, but helps reinforce that fact visually to help get the drivers into the mindset of driving on the opposite side of the road.
View all Left or right? The grooves of a well-preserved track leading to a Roman quarry near Swindon, England, suggests that Romans drove on the left. In the late 1700s in the U.S. teamsters driving large freight wagons pulled by several teams of horses were positioned on the left rear horse so they could hold the whip with their right. Current bridges.
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