Air cargo the area surrounding the city and thus land access. As this access was closed, in the so-called Berlin blockade, an airlift remained the only option to get increasingly urgent deliveries of food, coal, and other supplies to West Berlin. Over 330 days to 12 May 1949 a total of 2.26 million tons of cargo were airlifted to Berlin, an average of 6,800 tons a day, 80% by the US and 20% by the UK. Although freight traffic developed modestly, reaching only 800,000 tonnes worldwide by the mid-1950s, the world economy was hitting its post-war stride. Germany and Japan were emerging
Sahiwal Coal Power Project from the site to the Sahiwal Substation. As with the Pakistan Port Qasim Power Project, most of the coal used for the power plant is imported from Indonesia and South Africa, and is transported by rail from the Port of Karachi and Port Qasim in Pakistan's Sindh Province to the nearby village of Yusuf Wala on Pakistan's existing railway infrastructure. An estimated 4.48 million tons of coal will be required annually for the plant, based on a calculation of 22 hours of power generation per day. Indonesia is identified as a primary source for its high quality coal, reliable production,