1. In modern China, the transportation industry gradually started the process of modernization, and railways, water transport and aviation all made some progress.

2. The transportation industry in modern China was controlled and manipulated by western powers, and China had no independent rights.

3. Influenced by geography, humanities, economy and other factors, the development among regions is unbalanced.

Reason: In order to expand their economic interests in China, strengthen their control over China and suppress the resistance of the people in China, the great powers have been controlling and manipulating the traffic in China by virtue of their strong economic strength.

Impact:

1. Positive aspects: It is conducive to social and economic development, convenient for people's lives, changing people's ideas and strengthening the connection between China and the world.

2. Negative aspects: It is conducive to foreign political and economic aggression and the plunder of China.

Extended data:

China's regional economy in modern times has not only the great-leap-forward development brought by the new transportation system, but also the historical inheritance of the regional economic development trend itself.

If we only see one side, it will not conform to the law of economic development, nor can we scientifically evaluate the role of transportation in modern China society.

If we study the influence of Qingdao Port-Ji Jiao Railway on the regional economic development in modern Shandong, we can't simply study the development of regional commodity economy in Shandong after the opening of Qingdao Port and Ji Jiao Railway.

It is also necessary to investigate the economic development of Shandong before this, at least to understand the development of commodity economy in Shandong during the Ming and Qing Dynasties.

References:

Baidu Encyclopedia-Modern Railway Construction in China

References:

Baidu Encyclopedia-Modern History of China