Via MWCOG.
Don’t try to leave the D.C. region during the late afternoon hours of the Tuesday before Thanksgiving. That’s when average speeds drop to their lowest on area roads during the holiday week, according to an analysis by the Metropolitan Washington Council of Governments.
The Transportation Planning Board used “commercially available speed information provided anonymously by drivers and other travelers via GPS-equipped smartphones and in-vehicle navigation devices” during a recent Thanksgiving. “With the data, they calculated average travel speeds on the region’s Interstate highways and a few key arterial roadways throughout each of the days of the holiday week, then compared those averages to typical non-holiday days,” according to MWCOG.
Tuesday’s traffic awfulness was followed by Wednesday afternoon and Monday evening. MWCOG also released a series of interactive maps to show when and where Thanksgiving traffic is worst in the area.
Via MWCOG.
