We know D.C. Get our free newsletter to stay in the know.

Success! You're on the list.

Hoping to beat the Thanksgiving traffic by hitting the road after work on Tuesday? You’re probably making the same mistake as a whole lot of other people.

The Transportation Planning Board of the Metropolitan Washington Council of Governments studied minute-by-minute traffic data from a recent Thanksgiving week to create a report on the best and worst times to travel around the holiday. Traffic slows the most during the evening commute on Tuesday, followed by mid-afternoon on Wednesday. Monday, if you can get off work on Tuesday, is a much speedier time to travel.

Here, using data from 2012, is how each day during Thanksgiving week compares to an average day of traffic:

But let’s drill down within the most notorious traffic day—-the day before Thanksgiving—-to see when and where traffic is actually worst. During the morning commute, traffic (largely inbound) is worse on a typical Wednesday (right) than on Thanksgiving Wednesday (left), when many people aren’t going to the office:

By early afternoon, the roads are considerably more clogged on Thanksgiving Wednesday:

In the mid-afternoon, around 3:30, you really don’t want to be on the road on the day before Thanksgiving:

But by 6:45 p.m., the roads on Thanksgiving Wednesday are mostly clear, and even a bit less congested than on a typical Wednesday:

The full report, with interactive maps, can be found here.

Images from the report