From the Overview: "Innovative practices and new solutions have been implemented through the 2020 primary election season in response to COVID-19 [coronavirus disease 2019]. They offer illustrations of operations that are possible, either as principal solutions or as backup options for the 2020 general election. [...] Resilient Election Day operations should include contingencies for voting locations being unable to open as a result of last-minute facility cancelations, poll worker or staff shortages, and other potential problems related to the pandemic. Some modifications election officials have employed include:  Consolidating the number of locations into larger 'super centers' that can serve the same projected number of in-person voters, but with fewer poll workers and locations.  Creating a ticketing or reservation system so voters do not have to stand in line while waiting to vote.  Deploying drive-through voting and ballot drop-off locations.  Using a 'teller' window to separate the voter and poll worker. Although this document provides many examples, election officials are continuing to develop new and groundbreaking ideas."
U.S. Election Assistance Commission: https://www.eac.gov/