Stephen Pettigrew of the School of Arts & Sciences explained why the voting process can take longer than expected. “The steps in the system in most states are: You have a check-in step where they verify your voter registration status, and then there’s the step of actually voting. Lines out the door can be a consequence of bottlenecks at any of those steps,” he said.
https://www.wired.com/story/why-are-lines-at-polling-places-so-long-math/ Wired