The city is expanding at a rapid pace and if an efficient and inexpensive public transport system is not put in place now, it will collapse in the next few years, said former mayor of Bogota Enrique Penalosa Londono at a seminar on Tuesday. The politician-turned-international development adviser from Colombia said that public transport should be given priority over private cars, with local governments focusing more on open public spaces such as parks, pedestrian streets, playgrounds, waterfronts, etc, where everybody could go easily rather than on building new signal-free highways and exclusive elite clubs, used by a small number of people. He was speaking at the seminar on