The Development Bureau expects to roll out the Common Spatial Data Infrastructure (CSDI) for public use by the end of 2022, and make the 3D digital map available in phases from late 2019 to 2023.

In the 2019-20 Budget, $300 million was earmarked to develop the CSDI. The bureau briefed Land & Development Advisory Committee members on the CSDI's development during a committee meeting yesterday.

The members welcomed the CSDI initiative, saying they would like to take the project forward as quickly as possible and supported the bureau's funding application.

They also highlighted the need to engage stakeholders, ensure web accessibility and user-friendliness, and address data privacy and intellectual property concerns.

The Civil Engineering Development Department also briefed members on the Climate Change Working Group on Infrastructure's work progress.

Members noted that the working group will conduct further studies covering a frequency analysis of extreme sea levels and sensitivity checks on the potential impact on the coastal government critical infrastructure if hit directly by simulated super typhoons.

They also welcomed the Government's timely initiative and agreed to conduct more studies to predict the adverse effects of climate change and whether it should apply to private developments.