What is the purpose of funnel analysis in traffic incident management?

Funnel analysis in traffic incident management is primarily used to evaluate incidents that contribute to congestion. This analytical approach helps traffic management professionals understand and pinpoint how certain incidents, such as accidents or road obstructions, can affect overall traffic flow and lead to bottlenecks. By identifying these key incidents that funnel traffic into congested areas, traffic agencies can implement targeted interventions or improvements to alleviate congestion and enhance overall roadway efficiency.

The strength of funnel analysis lies in its ability to focus on specific incidents and their traffic impacts rather than more general assessments like vehicle speed, the effectiveness of signage, or vehicle identification alone. This targeted evaluation is crucial for developing effective traffic management strategies, as it allows for the identification of patterns and problem areas that require attention.