The world is surrounded by many mind-blowing structures which required well thought out engineering decisions. In this video we will discuss about top ten difficult decisions engineers had to face with. Lujiazui Pedestrian Bridge Traffic circle does not only clear congested streets but also congested sidewalks. The Lujiazui Pedestrian Bridge sits almost 20 feet above street level in the Pudong district of Shanghai. The bridge allows pedestrians to stroll along a circular high line while avoiding the commotion of the daily traffic below. The “flyover” has become a must-see for tourists from all over the world. It connects financiers to leisure areas surrounded by cafes and shops. The Lujiazui Bridge has several escalator stairway entrances and exits. The Infinity Bridge The Infinity Bridge is a beautifully architected steel bridge which was designed as a bicycle and pedestrian bridge. It is 272 meters long and spans the Tees River in Stock-on-Tees, England. The bridge was completed in May 2009 and took just under two years to be built. The bridge was a major part of the North Shore Redevelopment Project which was driven by Tees Valley Regeneration. The entire project cost £15 million. Bridges of Chicago Chicago’s iron bridges connect the two ends of the city which lie on either side of the Chicago River. The city is made up of a whopping 29 operating movable bridges. Although it does not beat the Amsterdam’s bridge total, it does come second. Chicago is also known as the drawbridge capital of the world since it is the only city which has experimented with so many drawbridge designs. The city tested multiple bridge designs, and finally settled on the Chicago-style bascule bridge. The bridge is a drawbridge which uses trunnion to lift the bridge’s leaves using counterbalance. The Chicago bridges have been the key to the city’s successful development. The bridges have assisted the expansion which started in the South and moved to the Northern part of the city. They have also connected the city’s diverse mix of people, cultures and neighborhoods. Trains Wait at Guangzhou Rail Yard The Guangzhou Train Station is located in the city of Guangzhou, China. The station is one of the biggest stations in China. It is also one of the busiest railway stations in Southern China and is known for its notorious safety. The Guangzhou Train Station is used for long distance slow travel, metro travel as well as quick trips to Hong Kong or Shenzhen. China’s popular Bullet Train can be taken from Guangzhou station. There are four bullet train stations in Guangzhou. The station’s C-class train is great for quick access to and from the west central Guangzhou area as well as the southern part of Shenzhen and Hong Kong. Orlando International Airport A bird’s eye view of Orlando International Airport resembles a creature out the film Men In Black (MIB). The airport is a central hub for commuters traveling through Orlando. According to statistics published in June 2016, the airport serves approximately 40 million passengers annually. It appears as if Orlando International Airport’s commuters are not afraid of this alien-like engineering decision. Judge Harry Pregerson Interchange The Judge Harry Pregerson Interchange connects the 110 and 105 interchange in Los Angeles, California. The 130 feet high interchange resembles a spiderweb from a bird’s eye view and offers its drivers a breathtaking view of the South of Los Angeles. The interchange is named after Judge Harry Pregerson who ensured that the community affected by the freeway received jobs, housing and other services. Pregerson ended his active service on court at the age of 92. He served as a Los Angeles-based judge for 50 years. Netherlands Aqueduct Dutch engineers are famous for their skills when it comes to reclaiming land from the sea. This is necessary as one-third of the Netherlands lies below mean sea level. Without the dunes, dikes and pumps, approximately 65% of the country would be under water at high tide. Basketweave Interchange A basketweave interchange is often found on highways and is made up of multiple lanes. The idea behind a basketweave is that one highway is able to interchange with itself. Therefore allowing traffic, which is traveling in the same direction, to switch between carriageways. This is done through the use of flyover or under ramps which are created between two carriageways. The method thus prevents weaving. Tokyo Bay Aqualine The Tokyo Bay Aqualine is a 15.1 km marine crossing which passes directly through the middle of Tokyo Bay. Also known as the Trans-Tokyo Bay Highway, the aqualine connects Kawasaki City, in Kanagawa Prefecture, to Kisarazu City, in Chiba Prefecture on the Boso Peninsular. The journey from Kawasaki to Kisarazu now takes a mere 15 minutes. This is vital from an economic perspective as both areas are of major industrial importance.

• published: 27 May 2017
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