Traffic Data Traffic data is used to calculate the commercial vehicle loading over the design period. Choose between options: Regional WIM Data (12 default Swedish stations via drop-down menu) Custom WIM Data (refer to data example in Appendix 1) ESALs (Equivalent Standard Axles) If Regional WIM Data is selected: Select a relevant WIM station from the drop-down menu. If ESALs is selected: Enter a value for h“ (Average Annual Daily Traffic heavy vehicle) “AADT – a value for the Axle Load” “Standard Enter a value for the Equivalent Factor” “Load Enter a value for the Traffic Growth Rate” “Annual Enter a value for the Period, years” “Design Vehicle Characteristics Commercial vehicles are defined as over 3.5 tonnes gross vehicle weight. Structural wear caused by lighter traffic is negligible. Enter a value for the of Dual Wheels” “Percent Enter a value for “Speed” Enter a value for Lateral Wander Standard Deviation” “Traffic Enter a value for Wheel Centre to Centre Distance” “Dual Contact Area Choose between two options: Calculated from User Defined Contact Pressure Calculated from Tyre Contact Area Mode (Current data is only available from a limited number of If Calculated from User Defined Contact Pressure is selected: Enter a value for Pressure” “Contact If Calculated from Tyre Contact Area Mode is selected: Use the drop-down menus to select a Type and Dimensions” for the single and “Tyre double wheels a Inflation Pressure” for the single and double wheels “Tyre Daily Traffic Distribution Hourly distribution of heavy vehicles axle load spectra fitted to a compound mathematical function.
Traffic Data Traffic data is used to calculate the commercial vehicle loading over the design period. Choose between options: Regional WIM Data (12 default Swedish stations via drop-down menu) Custom WIM Data (refer to data example in Appendix 1) ESALs (Equivalent Standard Axles) If Regional WIM Data is selected: Select a relevant WIM station from the drop-down menu. If ESALs is selected: Enter a value for “AADT h“ (Average Annual Daily Traffic – heavy vehicle) a value for the “Standard Axle Load” Enter a value for the “Load Equivalent Factor” Enter a value for the “Annual Traffic Growth Rate” Enter a value for the “Design Period, years” Vehicle Characteristics Commercial vehicles are defined as over 3.5 tonnes gross vehicle weight. Structural wear caused by lighter traffic is negligible. Enter a value for the “Percent of Dual Wheels” Enter a value for “Speed” Enter a value for “Traffic Lateral Wander Standard Deviation” Enter a value for “Dual Wheel Centre to Centre Distance” Contact Area Choose between two options: Calculated from User Defined Contact Pressure Calculated from Tyre Contact Area Mode (Current data is only available from a limited number of If Calculated from User Defined Contact Pressure is selected: Enter a value for “Contact Pressure” If Calculated from Tyre Contact Area Mode is selected: Use the drop-down menus to select a “Tyre Type and Dimensions” for the single and double wheels a “Tyre Inflation Pressure” for the single and double wheels Daily Traffic Distribution Hourly distribution of heavy vehicles axle load spectra fitted to a compound mathematical function.
user-guide_pedro_25_aug.docx