Annual Average Daily Traffic Estimates
The traffic volumes shown on these maps are annual average daily traffic, or AADT, developed from 24-hour counts taken during the calendar year. These counts are factored to estimates of AADT taking into consideration volume variations among seasons of the year and days of the week.

Monthly Variations: Seasonal fluctuations in traffic reflect the social and economic activity of the area being served by the highway. The difference in seasonal variation is the effect of trip purpose. Commuter and business-oriented travel occurs in more uniform patterns than recreational traffic which is subject to greater trip purpose variation. Monthly variations are more severe on rural routes than on urban ones. Rural routes serving primarily recreational traffic will have more severe variations than rural routes serving primarily business routes.

Daily Variations: Traffic variations by day of the week are also related to the area being served. Highways serving predominantly business travel show lower weekend volumes than weekday volumes. In comparison, peak traffic occurs on weekends on main rural and recreational access facilities. The magnitude of daily variation is highest for rural routes and least for urban routes.

Years:       

            2003 Annual Average Daily Traffic Estimates

            2004 Annual Average Daily Traffic Estimates

            2005 Annual Average Daily Traffic Estimates

            2006 Annual Average Daily Traffic Estimates

            2007 Annual Average Daily Traffic Estimates

 

 

 

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