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Video tutorial for SIDRA Intersection 5.1
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Review
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. |
What's new in version 5.1
Output and Displays
Significant improvements to roundabout and other intersection layout displays.
Roundabout layout options for circulating road line marking and lane arrows introduced to allow for different methods used in different countries.
New graphical Movement Timing output provided.
New LOS Summary output with graphical display of lane-by-lane Level of Service results on intersection layout picture introduced.
Level of Service messages in all Output Reports improved.
Model Improvements
Entry Radius and Entry Angle parameters incorporated into the SIDRA standard roundabout capacity model after new research using Australian roundabout data. SIDRA INTERSECTION is now the only lane-by-lane model allowing sensitivity to these parameters as found desirable by some roundabout designers.
Extra Bunching can be used for the effect of upstream signals on roundabout and sign control when the HCM 2010 model for roundabouts is used or one of the M1models is selected under the Gap-Acceptance Capacity option in Model Settings dialog.
Percentile Queue model revised (queue length and probability of blockage estimates will be affected).
Minimum delay equation for gap-acceptance models revised (delay results will be affected in some cases).
Small changes to the default values of the parameters of saturation flow lane width factor equation for the Standard Left, Standard Right, New Zealand, RTA NSW models. For the HCM Customary and Metric models, the new equation described in HCM 2010 adopted.
Operating Cost parameters (fuel price and value of time) updated for all models.
Various bugs fixed:
Movement degree of saturation differed from shared lane degree of saturation when movement volume was very low.
HV Floating point calculation in converting volume data in Volumes dialog.
The pedestrian table was not displaying in output after clicking Process.
Other
User Guide and Help system updated. Help topics per data field introduced (F1 key).
SIDRA UTILITIES (various small programs and applications available from our website free of charge) have been updated for SIDRA INTERSECTION 5.1:
VOLUMES Excel application
ANNUAL SUMS Excel application
OUTPUT COMPARISON program
VARIABLE RUN program
A new INPUT COMPARISON utility will be available from our online store for comparing input data files or comparing input data against defaults.
The Application Programming Interface (API) has been expanded. It will be further expanded, and work is in progress linking to other major transport software packages. |
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