【明報專訊】THE MASSIVE EXPLOSION in the Binhai New Area of Tianjin shows unmistakably that, with respect to urban planning and disaster and crisis management, the city falls far short of the requirements of a modern metropolis. Many cities in mainland China have through grand construction projects developed rapidly in recent years and look magnificent. However, it is generally felt that they have failed dismally to develop the corresponding "software" necessary for urban management. The Tianjin explosion is just another illustration of this reality.