text: World's highest railway links Tibet to rest of China
  
  July 1, 2006 
  
  The first trains were flagged onto the Qinghai-Tibet Railway line, the world's highest railway line connecting the Tibetan capital Lhasa with Golmud in Qinghai, China. At its highest point in the Tanggula Pass, the railway line reaches an altitude of 5072 metres. 
  The line is designed for travel at speeds of 100 km/h on frozen ground to 120 km/h on non-frozen ground. The cabins are supplied with oxygen because of the thin air at the high altitudes. The windows have ultra-violet filters to keep out the sun's glare. Cooling pipes have been used to ensure the ground remains frozen. 
  Air trips to Tibet are expensive and road trips slow and dangerous.
tokens: World 's highest railway links Tibet to rest of China July 1 , 2006 The first trains were flagged onto the Qinghai - Tibet Railway line , the world 's highest railway line connecting the Tibetan capital Lhasa with Golmud in Qinghai , China . At its highest point in the Tanggula Pass , the railway line reaches an altitude of 5072 metres . The line is designed for travel at speeds of 100 km / h on frozen ground to 120 km / h on non - frozen ground . The cabins are supplied with oxygen because of the thin air at the high altitudes . The windows have ultra - violet filters to keep out the sun 's glare . Cooling pipes have been used to ensure the ground remains frozen . Air trips to Tibet are expensive and road trips slow and dangerous .
nps.text: World's highest railway
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nps.text: Tibet
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nps.text: China
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nps.text: The first trains
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nps.text: the Qinghai-Tibet Railway line
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nps.text: the world's highest railway line
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nps.text: the Tibetan capital Lhasa
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nps.text: Golmud
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nps.text: Qinghai
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nps.text: China
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nps.text: its highest point
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nps.text: the Tanggula Pass
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nps.text: the railway line
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nps.text: an altitude
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nps.text: 5072 metres
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nps.text: The line
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nps.text: travel
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nps.text: speeds
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nps.text: 100 km/h
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nps.text: frozen ground
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nps.text: 120 km/h
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nps.text: non-frozen ground
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nps.text: The cabins
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nps.text: oxygen
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nps.text: the thin air
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nps.text: the high altitudes
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nps.text: The windows
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nps.text: ultra-violet filters
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nps.text: the sun's glare
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nps.text: Cooling pipes
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nps.text: the ground
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nps.text: Air trips
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nps.text: Tibet
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