‘Tosca’ crowds to impact QA traffic

The Seattle Department of Transportation (SDOT) is alerting drivers to several McCaw Hall (321 Mercer St.) performances this week that will add to downtown traffic.

About 3,000 people expected at each of these performances for Seattle Opera’s “Tosca”:

•Dress-rehearsal performances at 7 p.m. on Wednesday, Jan. 7, and Thursday, Jan. 8.

•Evening performance at 7:30 p.m. on Saturday, Jan. 10.

•Afternoon performance at 2 p.m. on Sunday, Jan. 11.