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ADTT: The annual daily truck traffic is a parameter used in fatigue checks.
Number of lanes available to truck: Number of lanes available to truck is a parameter used in fatigue checks.
Ductility Parameter
Including the haunch in determining Dt [YES/NO]: This parameter can be used to specify whether the haunch will be included in ductility checks within the code checks. Since including the haunch is optional, the total depth is calculated based on the actual haunch depth if this parameter is set to 'Yes', or calculated conservatively if set to 'No'.
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The ductility-related code check can be performed either by making a conservative calculation or by directly using the modeled haunch depth. The screenshot below provides an example of excluding the haunch in determining Dt, with the parameter set to 'No' 
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Deflection
As specified in AASHTO 2.5.2.6.2, "The live load portion of Load Combination Service I of Table 3.4.1-1 should be used." Additionally, you can directly set a deflection case.
Support Lines Used For Span Length Comp.[All / Selection]: In some projects, the support line object can be used as an extra bearing point. In this case, the span length calculation may not be done correctly. In such situations, it is important to manually select the supportlines that separate the spans.
Selected Support Lines: Manual support line selection for span length calculation.
Criteria for Deflection L/: The value to be used in the deflection limit calculation as specified in AASHTO 2.5.2.6.2.
Deflection Result Case from[Service I-LL Case/User Input]: Selection of the deflection case source.
Deflection Result Case: Set Manual deflection case instead of Service 1 LL case.