IV. LEGACY OF PUBLIC TRANSPORT 18. Identify public transit/commuting trends in the U.S. used primarily to get workers in and out of CBD, only used for 5% of commuting. How did 20 th century transportation changes affect suburb growth? permitted large-scale development of suburbs from greater distances from the center = flexibility in choice of residence. What are the current challenges faced by US. public transit? fares don't cover operating costs, cannot take care of services properly, raising prices would interfere with employment. Describe public transit in European countries. Why the difference?