Controversies about Thailand's national parks include excessive development and private concessions.

There have been protests against tariff increases under private concessions.

Some also began to seek private concessions.

Likewise, some private concessions are quite successful, while others have not lived up to expectations and their obligations.

Of the 11,000 kilometers of France's highways, 8,000 kms are under private concession.

A better way to raise money, Ms. Westra said, would be to return more of that generated by private concessions to the parks.

The two countries signed permanent agreements for economic and technical cooperation, private concessions, and trade relations.

The new rail networks would be built through direct government investment, rather than through private concessions.

Plans for Revenue The course would be run by a private concession.

Food is available from private concessions within the park.