About two-fifths of China's foreign aid projects are on infrastructure building to improve links between regions, such as roads, railways, bridges, ports, airports, power grids, mobile phone signal towers and optical fiber networks.
Another two-fifths concern hospitals, schools and other humanitarian projects.
What China is doing is connecting cities and villages and narrowing the distance between them so that economic development can spread across a wider range of regions, benefiting more people and thus narrowing the gap between rich and poor.
The latest report from AidData, a U.S. research project, points out that night lighting is one of the intuitive indicators of household income in a region, and that the brighter the area on the satellite map, the better the economic development.
The team picked up 3,485 Chinese construction projects in more than 130 countries and regions around the world from 2000 to 2014, combining the light and dark changes in areas where projects were located.
As a result, the team came to an impressive conclusion: China's involvement in infrastructure projects not only drives the local economy, but also drives the overall development of the surrounding region.