==>>Traffic Volumes on HIGHWAY==>>

                                   ==>>Traffic Volumes on HIGHWAY<<==

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No intersection can be properly designed without first obtaining accurate traffic counts and reliable projections for the design year of the project. Traffic counts are best determined from actual field counts, including all turning movements, and are broken down by vehicle type. Vehicle types are divided into two groups.The first group includes passenger cars and type A commercial vehicles (pickup trucks and light delivery trucks not using dual tires).The second group includes type B commercial vehicles (tractor, semitrailer, truck-trailer combinations) and type C commercial vehicles (buses, dual-tired trucks with single or tandem rear axles).Adjustments are made to field counts to allow for day of the week, month of the year,
time of day, and other site-related factors that may have a significant effect on the counts. Most urbanized areas have regional planning agencies that either provide or certify the traffic data used in intersection design.

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