Wow cool, didn't know thats your occupation!! It is so professional!! But still i think many of the constructions in Hong Kong are redundant, i am not saying expensive and not worth, i am saying its is not of that urgent need. There are other priorities to be settled before those bridges or runways are needed. Furthermore the over budget thing is absurd, as a professional, skilled in your arts, for estimating a project, how can you not consider those as a factor? That is like a doctor operating on someone without thorough assessment and prediction of worse case scenario!! Anyway big thank you for you information!!