合約項目主任的主要職責是：
(a) 協助處理三跑道系統項目相關的工作，例如進行技術性研究、擬定招標規格及進行風險評估以確保完全符合相關安全法規要求；
(b) 協助進行過渡性二跑道系統、三跑道系統運作和大灣區發展研究相關的模擬（包括快速模擬）、評估及航空交通數據分析的工作；
(c) 協調三跑道系統項目和與各持份者溝通，以收集各相關系統的用戶要求和研究航空交通增長對航空交通管理運作的影響；
(d) 參與不同系統的客制化及優化工作，為現有的跑道配置、過渡性二跑道系統及三跑道系統提供高效的航空交通管理服務；
(e) 支援由三跑道系統和評估團隊管理的新系統或應用程式以及中央航空資料庫的軟件設計、開發與維護，使航空交通管理服務能順利過渡至過渡性二跑道系統以及最終三跑道系統的操作；及
(f) 為其他工作提供支援，例如過渡性二跑道系統及三跑道系統運作程序、及系統和資料庫運作的相關培訓工作。

A Contract Project Officer is mainly deployed to –
(a) assist in handling tasks in relation to Three-runway System (3RS) project such as technical study, tender specification development and safety risk assessment to ensure full compliance with the relevant regulatory requirements;
(b) assist in simulation (including Fast Time Simulation) and air traffic data analysis and evaluation projects relating to Interim Two-runway System (I-2RS) and 3RS operation and Greater Bay Area development study;
(c) coordinate with the 3RS project and communicate with stakeholders on collecting relevant user requirements for various systems and to study the impacts of traffic growth on Air Traffic Control operations;
(d) participate in adaptation and enhancement work of different operational systems to provide efficient and effective Air Traffic Control services for the existing runway configuration, I-2RS and 3RS;
(e) provide support on software design, development processes and maintenance of new systems/applications and centralised aeronautical database handled by the 3RS and evaluation team to facilitate transition to the I-2RS and 3RS operations; and
(f) provide support in other activities such as related training on I-2RS and 3RS operational procedures, and systems/database utilisation.