On Monday, the city issued a statement announcing that a separation agreement had been reached with Lee to resign.

CNN: STORY HIGHLIGHTS

More than two decades after the Berlin Wall succumbed to the will of Ms. Thiele and millions of other East Germans to see what lay beyond its concrete ridges, Berliners are fighting to keep the remaining traces of the city's nearly 30-year separation intact.

WSJ: In Berlin, Wall Divides Developers, Protesters

In this case, the assumption that greater safety is achieved by separation of vehicle and pedestrian is being challenged, and may turn out not to hold up at all for specific city areas.

FORBES: The Car on the Sidewalk and Other Reversals