* The glacial slowness with which public sector supervised projects usually move. This is partly due to the bureaucratic way of doing things; the main priority is following "correct proceedure", which to them is more important than the whole team working together for an efficient and speedy outcome. It's also partly due to inflexibility, such as if the kid who opens the mail goes on holiday, no one else can do that work because it's not in their job description.
* Public sector red tape, blue tape and green tape. Even the simplest project has to jump through elaborate bureaucratic, union and environmental hoops that a private project could either avoid or at least do more easily. For example the four metre wide strip of land required for the extra track that adjoins rail tracks that have been used since 1859, will still need a slow, elaborate and insanely expensive environmental assessment to check that the weeds growing on the wasteland are not native weeds. Then the report will need to be published and a series of public meetings scheduled where NIMBYs and the more extreme variety of enviro-mental can object, claiming that a common (albeit native) weevil may be slightly inconvenienced and thus further prolong the process, which also costs a lot of extra money.
This Is all so true, If only these Public sector workers did a more proactive job (other than working hard every day trying to justify the existence of their role) we could have so much more Infrastructure built (for the same funding) generating greater benefits for everyone.