Figure 5: Monthly Variation in Chicago’s Weekday and Weekend Congested Hours due to Seasonal Factors,,
Difference in congested hours per day from the trendline,,
,Chicago Weekday seasonality,Chicago Weekend seasonality
Jan,-0.850994748,-1.516295261
Feb,-0.231930471,-0.076067491
Mar,0.039622471,-0.523434721
Apr,-0.384798326,-0.727092056
May,0.366345709,-0.142304754
Jun,0.525618652,1.774815683
Jul,0.237330595,0.734857453
Aug,0.238419204,0.833121889
Sep,0.674736147,0.101100659
Oct,0.54646909,0.618079763
Nov,-0.129485633,-0.571617467
Dec,-1.031332691,-0.505163697
"SOURCE: Calculated from data used in preparation of Federal Highway Administration, Urban Congestion Report, April 2004 – April 2007.",,