Will other companies follow Amazon’s lead? That’s a key question for the future of downtown Seattle as the tech giant brings workers back to the office five days a week, as part of a new mandate that goes into effect Thursday.

Amazon has demanded that all of its employees return to the office full-time, five days a week. Now, as those workers head back to the office, officials in the company’s home base of Seattle are warning that the policy may clog up local traffic routes.

State transit officials are urging drivers to prepare for gridlock as an estimated 50,000 Amazon corporate workers heed CEO Andy Jassy's directive.