Before getting to specifics, architect John Cetra, co-founder of CetraRuddy, said there are two types of supertalls to consider. One is the kind that has millions of square feet of floor area and a massive flow of people through the building every day. “Those buildings have their own set of issues,” he said. “How do you engineer for that kind of traffic? How many elevators do you need? How do you zone elevators?”
