Convergence
Enhanced Network
Convergence Methodmore reliable results for complex networks
An improved convergence method for the SIDRA Network model delivers more reliable results for complex network configurations — particularly under oversaturated conditions with lane blockage effects.
The new Two-Loop Convergence architecture separates lane blockage constraints from capacity and timing calculations, achieving convergence in cases where single-loop approaches produce unsettled results.
Two-Loop architecture
Inner Loop resolves capacity and timing with blockage factors held constant. Outer Loop recalculates lane blockage and checks overall convergence — delivering numerical stability where single-loop methods struggle.
Convergence diagnostics
Network Model Variability Index, iteration-by-iteration reporting, and Adjusted Percentage Stopping Condition — giving engineers the transparency to assess result quality and identify sources of instability.
Data Management
Volume Store &
cost parametersstreamlined data management for O-D demand and economic analysis
The Volume Store now includes the Assign Volume Bin for managing O-D trip demand data used by SIDRA ASSIGN — alongside updated cost parameters for more accurate economic assessment.
Assign Volume Bin
The Volume Store now includes the Assign Volume Bin for managing O-D trip demand data used by SIDRA ASSIGN. Assign Volume Bins store Zone definitions, O-D Volumes by Movement Class, growth rates and Fixed O-D Volumes, and can be shared across multiple Assign Networks within a project.
Updated cost parameters
Updated cost parameters for fuel consumption, emissions and economic analysis — ensuring that economic assessments reflect current values for more accurate benefit-cost evaluations.
Explore further
See every improvement in Version 11.
From interface refinements to micro-analytical traffic assignment — explore the full list of what's new.