China's largest internet search engine Baidu – often referred to as the Google of the East - has launched a heat map which captures the largest global seasonal migration on earth.
Chinese officials estimate that some 3.65 billion journeys will be made over the 40-day travel period associated with the Chinese New Year festival.
The map was created using data generated by smart phone users using the Baidu Maps application. The app has 200 million registered users and logs 3.5 million location requests each day, according to media reports.
The interactive map is updated every four to eight hours.