Traffic Engineering

Conflict-Based Occlusion Probability Model for Multi-Modal Intersection Video Detection Calculator

Conflict-Based Occlusion Probability Model for Multi-Modal Intersection Video Detection engineering calculator.

Quick Answer

Calculate Conflict-Based Occlusion Probability Model for Multi-Modal Intersection Video Detection

Calculator

Occlusion probability (dimensionless)
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Result Interpretation

Conflict-Based Occlusion Probability Model for Multi-Modal Intersection Video Detection Calculator computes Occlusion probability in dimensionless using the defined engineering formula and the input values provided. Occlusion probability is expressed in dimensionless. No universal acceptance threshold is defined by this calculator.

Worked Example

Verified calculation

Given:

  • Exposure time = 1.8
  • Camera field-of-view width at intersection plane = 20
  • Conflict density = 0.0015
  • Occlusion factor = 0.75
  • Detection system latency = 0.12
  • Vehicle profile ratio = 0.55

Expected Result:

  • Occlusion probability = 0.00046395483965245

Engineering Interpretation:

Under the given input conditions, the calculated result is: Occlusion probability = 0.00046395483965245 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

occlusion probability = 1.0 - exp(-1.0 * (conflict density * occlusion factor * exposure time * vehicle profile ratio) / (camera field-of-view width at intersection plane * detection system latency))

Formula family: formula_traffic_video_detection_occlusion_risk_analyzer_for_multi_modal_intersections

Variables

SymbolLabelRoleDescription
conflict_density Conflict density INPUT Conflict density
occlusion_factor Occlusion factor INPUT Occlusion factor
exposure_time Exposure time INPUT Exposure time
vehicle_profile_ratio Vehicle profile ratio INPUT Vehicle profile ratio
camera_fov_width Camera field-of-view width at intersection plane INPUT Camera field-of-view width at intersection plane
detection_latency_s Detection system latency INPUT Detection system latency
occlusion_probability Occlusion probability OUTPUT Occlusion probability
e e CONSTANT e = 2.718281828459 dimensionless

Calculation Steps

  1. Enter the conflict density in per_square_meter_per_second.
  2. Enter the occlusion factor in dimensionless.
  3. Enter the exposure time in second.
  4. Enter the vehicle profile ratio in dimensionless.
  5. Enter the camera field-of-view width at intersection plane in meter.
  6. Enter the detection system latency in second.
  7. Step 1: Compute occlusion probability.
  8. Read the occlusion probability (dimensionless) from the results.

Engineering Summary

Calculate Conflict-Based Occlusion Probability Model for Multi-Modal Intersection Video Detection

Frequently Asked Questions

What does this calculator calculate?

The Conflict-Based Occlusion Probability Model for Multi-Modal Intersection Video Detection Calculator estimates Occlusion probability based on the input parameters you provide

What physical constants are used in this calculation?

This calculation uses the elementary charge (e = 2.718281828459 dimensionless). This is a fundamental physical constant that ensures the formula produces results in consistent engineering units

Why is conflict density important in this calculation?

conflict density is used directly in the calculation of occlusion probability. Its effect on the result depends on the complete formula and the values of the other inputs.. When you enter conflict density in per_square_meter_per_second, the calculator uses it in the engineering formula to compute the output

How should I interpret the result occlusion probability?

The calculator outputs occlusion probability 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: Conflict density (per_square_meter_per_second), Occlusion factor (dimensionless), Exposure time (second), Vehicle profile ratio (dimensionless), Camera field-of-view width at intersection plane (meter), Detection system latency (second). 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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