SIDRA INTERSECTION uses more advanced models and methods, including lane-by-lane analysis(rather than analysis by lane groups in the HCM), modelling of shortlanes, detailed modelling of average and percentile queue lengths,stop rates, geometric delays, and the use of drive cycles (cruise,acceleration, deceleration and idling) for detailed modelling of delay and travel time components as well as operating cost, fuel consumption and emission estimation.

We have spent over 30 years developing SIDRA INTERSECTION software with one core philosophy in mind - to provide a powerful tool that helps you to save time and effort, and enables production of effective solutions for your local traffic conditions.

Features:

HCM 2010 roundabout model fully integrated with significant model extensions.
New HCM 2010 Level of Service methods, parameter defaults and delay models adopted (relevant to all intersection types).
Templates for all intersection types including roundabouts, signals and sign control updated for HCM version of SIDRA INTERSECTION.
New Apply to All Sites feature to make changing data and model settings at Project level easy.
New Import Volume Data from Another Site function in Volumes dialog.
New Change New Zealand Rule function in the Priorities dialog for the New Zealand model for changing between the New Zealand Rule and the rule used in the Standard Left model (can be applied to all Sites in the Project).
Significant improvements to roundabout and other intersection layout displays.
Roundabout layout options for circulating road line marking and lane arrows.
New graphical Movement Timing output.
New LOS Summary output with graphical display of lane-by-lane Level of Service results on intersection layout picture.
Entry Radius and Entry Angle parameters incorporated into the SIDRA standard roundabout capacity model.
User access to more model calibration parameters including downstream lane utilisation and vehicle mass parameters.
Operating Cost parameters (fuel price and value of time) updated.
Percentile Queue model revised (probability of blockage will be affected).
Various other traffic model and user interface improvements.
Updated User Guide and Help system. Help topics per input data field and per output report introduced.
SIDRA UTILITIES (various small programs and applications available from our website free of charge) updated for SIDRA INTERSECTION 5.1:
VOLUMES Excel application
ANNUAL SUMS Excel application
OUTPUT COMPARISON program
VARIABLE RUN program
INPUT COMPARISON program is available from our online store for comparing input data files or comparing input data against defaults.
Application Programming Interface (API) is being further expanded, and work is in progress linking to other major transport software packages.
No other software employs a powerful lane-by-lane capacity and performance analysis method and drive-cycle modeling like SIDRA INTERSECTION.
Powerful environmentalmodeling to help you design green intersections.
Leading analytical methodology based on Dr Akcelik's award-winning research and development.

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