The Airport Development Aid Program (ADAP) is a program initiated by the United States Agency for International Development (USAID) to provide assistance to airports in developing countries. The main objective of ADAP is to enhance airport infrastructure, safety, and security, thereby promoting economic growth, trade, and tourism in these countries.

Under the ADAP program, USAID provides financial and technical assistance to eligible airports to upgrade their facilities, improve operational efficiency, and enhance safety and security standards. This assistance can include:

1. Airport master planning and design
2. Construction and rehabilitation of airport infrastructure, such as runways, taxiways, and terminals
3. Installation of air traffic control and navigation systems
4. Implementation of safety and security protocols, including training for airport personnel
5. Provision of equipment and technology to support airport operations

The ADAP program aims to achieve several goals, including:

1. Improved safety and security at participating airports
2. Increased efficiency and capacity of airport operations
3. Enhanced economic development and trade opportunities
4. Increased connectivity and accessibility to remote or underserved regions
5. Compliance with international aviation standards and regulations

By providing assistance to airports in developing countries, the ADAP program helps to promote sustainable economic growth, improve living standards, and enhance global connectivity.