Officials are expecting millions to clog the roads, Jenni Bergal reports for Stateline, the the nonpartisan, nonprofit news service of the Pew Charitable Trusts. Dave Thompson, a spokesperson for the Oregon Department of Transportation, told her: "People are thinking they're just going to pop in, see it, and then turn around and head back home. They're not. They need to be prepared for long backups and have a full tank of gas and stuff in their car like water and food and medications they might need."
States are doing what they can to mitigate traffic issues. Many plan to suspend construction projects for the day. Idaho officials are identifying potential bottlenecks and ways to manage traffic. Missouri will monitor capacity at interstate rest areas and welcome centers so they can be closed to new entries when they fill up. Geographic information systems expert Michael Zeiler, who operates GreatAmericanEclipse.com, a great one-stop source of eclipse information, created a map of potential traffic bottlenecks for the eclipse:
|FiveThirtyEight.com map; click to view a larger version|