On larger projects I was often required to determine probability outcomes using statical variance data. It's surprisingly accurate if done properly. Certainly the largest infrastructure project of its type in the world deserves equally detailed planning. But unfortunately for us the HART/city analysts' work does not have that kind of attention to detail. More like one of my first year trainees back in the day, and i would have to proof everything they did before circulation. Very under-served the city and our taxpayers are. I'm not even sure anyone here truly understands how great the gulf is from strong professional infrastructure analysis.