It is highly political projects, politicians offloaded their old friends and competitiors onto the boeards and other functions and in the case of the airport major planning was undertaken by a guy who is a technical drawer and not an engineer.

Most of these fuck ups could have been prevent, if the project management was done by project managers with an engineering background and if the owners side would have been represented by peoplewith a technical backgrounds.

Source: i have worked in civil engineering for public projects. We wasted 50% of the time explaining Politicians and MBA bros C-levels why they can't start by building the roof and why replanning half the stuff is a bad idea, when we are already on the market with bids for contractors.