MACAO, June 1 (Xinhua) -- Indonesia tops the Belt and Road Infrastructure Development Index, according to a report issued here at a forum on Thursday.

The report, released at the 8th International Infrastructure Investment and Construction Forum in China's Macao, was made by China International Contractors Association and Dagong Global Credit Rating, and is based on infrastructure development environment, development potential and development trend of the countries and regions along the Belt and Road.

The overall infrastructure development in those countries and regions features an upward development momentum with fluctuation, the report said.

Meanwhile, the infrastructure market is vibrant, especial in the Association of Southeast Asian Nations member states and Central and Eastern European countries, the report said.

Besides Indonesia, Iran, India, Brazil, Vietnam, Singapore, Russia, Portugal, Pakistan and Bulgaria also rank in the top 10 in the index.