Most of us have, at some point experienced travel congestion, especially during major holidays such as Christmas and Thanksgiving. However, nothing compares to the crowds triggered by the Chinese Lunar New Year, or Spring Festival, when millions of people make their way home – usually from cities to rural areas – to celebrate the all-important holiday with friends and family. The spring travel rush, or Chunyun, begins 15 days before the festival – which falls on February 5 this year – and ends 25 days after. The 40-day period collectively results in the world’s largest seasonal human migration. This year will be no exception.