railway

Passengers walk at a square of Zhengzhou East Railway Station in Zhengzhou...Passengers walk at a square of Zhengzhou East Railway Station in Zhengzhou, Henan province, February 17, 2014. REUTERS/Jason Lee

Jason Lee/Reuters

Passengers walk at a square of Zhengzhou East Railway Station in Zhengzhou, Henan province, China Read more

Britain's Prime Minister David Cameron (...Britain's Prime Minister David Cameron (4th L) and Mayor of London Boris Johnson (3rd R) are pictured during a visit to a Crossrail construction site underneath Tottenham Court Road in central London, on January 16, 2014. The Crossrail project, which is expected to be completed in 2018, will link Berkshire, west of London with Essex, east of London.

Ben Stansall/AFP

David Cameron, UK prime minister, and mayor of London Boris Johnson visit a Crossrail construction site underneath Tottenham Court Road in central London. Crossrail, which is expected to start running in 2018, will link Berkshire, west of London, with Essex, east of London. Mr Cameron is pictured fourth from left, Mr Johnson third from the right Read more

Passengers climb to board an overcrowded train at a railway station in Dhaka

Andrew Biraj/Reuters

Passengers clamber on to an already overcrowded train at a railway station in Dhaka on Thursday. Millions of residents of the Bangladesh capital are travelling home to celebrate the Eid al-Fitr holiday, which marks the end of the Muslim holy fasting month of Ramadan.

derailed cars at the site of a train accident near the city of Santiago de Compostela.

Oscar Corral/AFP/Getty Images

Derailed carriages at the site of a train accident near the city of Santiago de Compostela. At least 78 people died and 131 were injured when a train derailed in Galicia in northwestern Spain on Wednesday.

The remains of the runaway fuel train that exploded in a deadly ball of flames in the center of  Lac Megantic, Quebec.

Mathieu Belanger/Reuters

The remains of the runaway fuel train that exploded in a deadly ball of flames in the center of Lac Megantic, Quebec in Canada.

A child looks out from a train window be...A child looks out from a train window before leaving the Hefei railway station in Hefei, north China's Anhui province on July 1, 2013. China's summer travel peak starts on July 1, as railway systems serve an increasing number of passengers including students and tourists.

AFP

A child looks out from a train window before leaving Hefei railway station in Anhui, a province in north China. The peak summer travel period starts on Monday, with railway systems serving an increasing number of passengers including students and tourists Read more

An Indian commuter pours water over his head to cool off as young children watch from a window at a railway station in Allahabad, India, Monday, May 20, 2013. Most of north India has been reeling under heat wave conditions with temperature soaring to over 46 degree Celsius (115 degrees Fahrenheit). (AP Photo/Rajesh Kumar Singh)

Rajesh Kumar Singh/AP

An Indian commuter pours water over his head to cool off as young children watch from a window at a railway station in Allahabad, India on Monday. Most of north India has been reeling under heat wave conditions with temperature soaring to over 46 degree Celsius (115 degrees Fahrenheit) Read more

Men bathe using pipes that supply water to trains at a railway station in the northern Indian city of Allahabad May 8, 2013. Temperatures in Allahabad on Wednesday reached 41.5 degrees Celsius (106.7 degrees Fahrenheit), according to information posted on India's metrological department website.

Jitendra Prakash/Reuters

Standing next to the railway tracks, men use pipes that supply water to the trains to bathe with at a railway station in Allahabad, northern India, as temperatures in the city on Wednesday reached 41.5C