Solve complex network design challenges using the unique lane-based SIDRA model

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what is SIDRA intersection


Micro-analytical software used as an aid for the design and evaluation of single intersections and networks of intersections.

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New in Version 9

Powerful new features to help you design intersections and networks with ease.

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Powerful SIDRA Model features allow for all intersection types: signals, roundabouts, sign control and pedestrian crossings in one network.

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SIDRA complements the Highway Capacity Manual (HCM) as a lane-based intersection and network analysis tool. Unlike other software packages, the SIDRA HCM Setup does not claim to be a simple replication of the HCM procedures. Instead, it offers various extensions on the capabilities HCM offers.

Lane based network model

Diverse Movement Classes

Movement Classes can be allocated to different lanes, lane segments and signal phases, providing a unique method for modelling of Bus Priority Lanes, Bicycle Lanes, and so on.

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SIDRA INTERSECTION includes extensive treatment of signalised and unsignalised (zebra) pedestrian crossings at intersections and midblock locations.

Powerful new features in SI-9

Environmental Analysis

Environmental assessment in traffic management, design, operations and planning can be conducted using models to estimate fuel consumption and pollutant emissions as a function of traffic conditions.

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Intersections and Networks

SIDRA INTERSECTION is a powerful tool for lane-by-lane analysis of simple intersections to complex networks of up to 50 Sites!

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SIDRA INTERSECTION is advanced software for best roundabout design which uses powerful analytical modelling.


Signal Timings

Signal timings from simple to complex signal phasings - based on strong research foundations.

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SIDRA Queue Length and Saturation Flow Surveys

Improve the quality of your model calibration with these useful Excel Application tools.



Easily set up complex configurations using Site and Network Templates.

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User Interface and Output

Learn about the SIDRA INTERSECTION user interface workflow and output capabilities.

Most widely used software USA


SIDRA API provides a programming interface that enables external applications to communicate with SIDRA INTERSECTION to achieve more.

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VOLUMES is an Excel application for SIDRA INTERSECTION.


Transport and Traffic Modelling for Project Managers

This second edition of the critical review of the Austroads Report AP-R621-20 (revised version published as AP-R647-21) should be of interest to transport and traffic modelling project managers, guide developers and software users.

SIDRA INTERSECTION Update Version 9.0.3 is now available. Learn More