Quick Answer
Calculate HCM 6th Ed. Roundabout Entry Capacity Deficiency Ratio
Calculator
Result Interpretation
HCM 6th Ed. Roundabout Entry Capacity Deficiency Ratio Calculator computes Entry capacity deficiency ratio in dimensionless using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Entry capacity = 900
- Entry demand flow rate = 750
Expected Result:
- Entry capacity deficiency ratio = 0
Engineering Interpretation:
Under the given input conditions, the calculated result is: Entry capacity deficiency ratio = 0 dimensionless.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
entry capacity deficiency ratio = max(0, (entry demand flow rate / entry capacity) - 1)Formula family: formula_traffic_roundabout_entry_deficiency_diagnostic_tool_hcm_6th_ed
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| v_entry | Entry demand flow rate | INPUT | Entry demand flow rate |
| c_entry | Entry capacity | INPUT | Entry capacity |
| entry_capacity_deficiency_ratio | Entry capacity deficiency ratio | OUTPUT | Entry capacity deficiency ratio |
Calculation Steps
- Enter the entry demand flow rate in veh/h.
- Enter the entry capacity in veh/h.
- Step 1: Compute entry capacity deficiency ratio.
- Read the entry capacity deficiency ratio (dimensionless) from the results.
Engineering Summary
Calculate HCM 6th Ed. Roundabout Entry Capacity Deficiency Ratio
Frequently Asked Questions
What does this calculator calculate?
The HCM 6th Ed. Roundabout Entry Capacity Deficiency Ratio Calculator estimates Entry capacity deficiency ratio based on the input parameters you provide
Why is entry demand flow rate important in this calculation?
entry demand flow rate is directly proportional to entry capacity deficiency ratio. When you enter entry demand flow rate in veh/h, the calculator uses it in the engineering formula to compute the output
How should I interpret the result entry capacity deficiency ratio?
The calculator outputs entry capacity deficiency ratio in dimensionless. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Entry demand flow rate (veh/h), Entry capacity (veh/h). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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