In a reversal from urban flight, many cities are experiencing an influx of citizens who want to live downtown, according to a Brookings Institution survey scheduled for release Monday. The trend is most pronounced in cities that have turned their inner core into lively entertainment centers.

• Out of 20 large American cities surveyed, all but Atlanta expect their downtown populations to grow by 2010 -- with Atlanta expecting to lose some residents who settled downtown for the 1996 Olympics.

• Houston expects a 303 percent increase in its downtown population by 2010, while Cleveland expects 228 percent growth.

• Denver, Memphis and Seattle are expecting downtown populations to substantially more than double.

• Cities which foresee a near doubling of downtown residents include Dallas, Miami and New York.

Demographers say that aging baby boomers -- who originally moved to the suburbs to raise families, but whose children have now moved out -- are an important factor in the shift.