Holiday Crowds to Test Times Square Overhaul

After five years of extreme congestion, the revamped Times Square is nearly finished. And it will soon be tested by holiday hordes.

For the first time since 2012, the seasonal surge of nearly 400,000 daily visitors will see a completed vision for the tourist and theater mecca—wide sidewalks, pedestrian plazas and reconfigured streets, instead of a clogged vortex of construction.

Though the official opening ceremony will be in...