EDUCATIONAL LICENCES For educational and research purposes only EDUCATIONAL Licences are available to recognised Educational Institutions for educational and research purposes only. This licence type cannot be used for commercial projects or any income generating activities. How long does the software work for? SIDRA INTERSECTION: All EDUCATIONAL LICENCES issued after the release of version 7 are TIME LIMITED (valid for 12 months only). This means that they will stop working after 12 months at the time of COVER Expiry unless the COVER is renewed. The EDUCATIONAL licence is subject to various...

SIDRA Videos

The Highway Capacity Manual (HCM) Setup in SIDRA INTERSECTIONSIDRA INTERSECTION software complements the Highway Capacity Manual (HCM) as an advanced intersection and network analysis tool. The Highway Capacity Manual (HCM) Setup in SIDRA INTERSECTION offers options for US Customary and Metric units.SIDRA INTERSECTION is compatible with the Highway Capacity Manual. However, unlike other software packages, the HCM Setup in SIDRA INTERSECTION does not claim to be a simple replication of the HCM procedures. Instead, SIDRA INTERSECTION offers various extensions on the capabilities HCM offers.With...

Introduction Improve your skills in using SIDRA INTERSECTION and enhance your understanding of the important features of this powerful lane-based software.     Workshops Learn about our various workshops: SIDRA MODEL FUNDAMENTALS, BEGINNER, INTERMEDIATE, ADVANCE and VERSION 9 UPDATE. Presenters Learn about our highly skilled SIDRA Workshop presenters. Registration We use Eventbrite ticketing system to handle all registration for our workshops. Delegate Testimonials Here are some positive comments from delegates who have attended past SIDRA Workshops. Workshop Interest Please let us know if you...

Read the System Requirements for SIDRA INTERSECTION and SIDRA TRIP. SIDRA INTERSECTION 9 Memory 2 GB RAM or higher. Importing large OpenStreetMap (OSM) areas may increase the amount of RAM required. Display 1280x1024 or higher resolution monitor. Font size must not be increased above 100% if 1280x1024 resolution is used. Operating System Windows 11 and Windows 10. Windows 8.1, Windows 8, Windows 7 with Service Pack (SP) 1 are subject to various limitations for Floating Licence use and the online software update function. Windows 7 has some limitations related to input and output displays. 64...

SIDRA INTERSECTION is the most widely-used software tool in the USA for roundabout capacity and performance analysisAccording to the US Transportation Research Board document "Roundabout Practices", SIDRA INTERSECTION is the most widely-used software tool in the USA for roundabout capacity and performance analysis, followed by Synchro and HCS, based on a survey of state transportation departments (based on 28 of the 37 state agencies responding to the survey question).The report also states "To analyse roundabout performance, about three-quarters of the reporting states use some form of the...

Powerful Network Signal Timing AnalysisNetwork timing for signal coordination involves Network Cycle Time and Site Phase Time calculations as well as Signal Offsets calculated for Routes defined by users. Network Cycle Time, Site Phase Times and Signal Offsets can be specified by the user. Signal timings for Common Control Groups (CCGs), i.e. several signalised intersections operating under one signal controller, are calculated using a unique method that treats each CCG as a single entity.  Graphical Interactive Offsets function SIDRA INTERSECTION 9 introduced an Interactive Offsets function...

What is an ENTERPRISE Licence? The ENTERPRISE licence allows use of the software by the employees of the Licensee’s organisation who are employed in offices (sites) at different locations of the organisation in the country for which the licence is issued. Which software is this available for? This licence type is available for purchase for SIDRA TRIP only.  What kind of ENTERPRISE licences are available? The following table lists available ENTERPRISE licences for use across an organisation. This Licence allows use of the software in all offices (sites) of the organisation in the country for...

Dr Rahmi AkçelikDr Rahmi Akçelik is a leading scientist and software developer with 50 years of practical, research and training experience in the area of road traffic operations, traffic engineering, management and control. He is Director of Akcelik and Associates Pty Ltd - trading as SIDRA SOLUTIONS.He has more than 300 technical publications in his area of expertise. He is the author of the SIDRA INTERSECTION and SIDRA TRIP software packages. Rahmi served as member of various US Transportation Research Board Committees. He has trained several thousand professionals in over 300 workshops...

Improve the quality of your model calibration We provide Excel Applications as useful tools for field surveys of Back of Queue and Queue at Start of Green (or Start of Gap), Saturation Flow and Lost Time. These help with calibration of SIDRA models for signalised intersections, interchanges, roundabouts, sign-controlled intersections and pedestrian crossings. The survey methods in our Excel applications are consistent with the fundamentals of the traffic models used by SIDRA. This will help you to employ a sound model calibration methodology in your work.