Aerial photo taken on April 24, 2019 shows a part of the Feifeng Moutain smart park in Fuzhou, capital of southeast China's Fujian Province. The Feifeng Mountain smart park, the first AI park of Fujian province, opened in Fuzhou recently. (Xinhua/Wei Peiquan)

A self-driving bus runs on a sight-seeing path in the Feifeng Moutain smart park in Fuzhou, capital of southeast China's Fujian Province, April 24, 2019. The Feifeng Mountain smart park, the first AI park of Fujian province, opened in Fuzhou recently. (Xinhua/Wei Peiquan)

Self-driving buses are seen in the Feifeng Moutain smart park in Fuzhou, capital of southeast China's Fujian Province, April 24, 2019. The Feifeng Mountain smart park, the first AI park of Fujian province, opened in Fuzhou recently. (Xinhua/Wei Peiquan)

Passengers sit in a self-driving bus running on a sight-seeing path in the Feifeng Moutain smart park in Fuzhou, capital of southeast China's Fujian Province, April 24, 2019. The Feifeng Mountain smart park, the first AI park of Fujian province, opened in Fuzhou recently. (Xinhua/Wei Peiquan)