Improve your intersection and network design
SIDRA INTERSECTION 9.1 uses a powerful multimodal performance analysis method to help improve your intersection and network design, rather than using the traditional aggregate traffic modeling.
The multimodal method:
- provides output reports and displays which give separate performance and level of service results for Vehicle Movement Classes (Buses, Bicycles, Heavy Trucks, Light Rail), Pedestrians and Persons, and
- uses a unique multimodal gap acceptance capacity model developed to improve capacity and performance estimates for roundabouts and other intersection types.
TRB 103rd Annual Meeting Presentation
We have published a TRB Annual Meeting presentation which is available to download. This is a contribution to a session on areas where multimodal capacity and performance models for roundabouts can be improved in future versions of the Highway Capacity Manual (HCM). The presentation provides information about existing features of the SIDRA INTERSECTION software for this purpose. It also suggests the areas where there are current gaps in the basic aspects of HCM roundabout capacity and performance models.
Modelling of separate Movement Classes
SIDRA INTERSECTION allows modelling of separate Movement Classes (Light Vehicles, Heavy Vehicles, Buses, Bicycles, Large Trucks, Light Rail / Trams and two User Classes) with different vehicle characteristics.
These movements can be allocated to different lanes, lane segments and signal phases, for example for modelling bus priority lanes, bicycle lanes and tram lanes at signals, or for modelling unequal approach lane use based on destinations at closely-spaced intersection networks.
Output reports and displays by Movement Class, Pedestrians and Persons
SIDRA INTERSECTION has the ability for the user to choose the Movement Classes to be included in output reports and displays. Movement Classes include Light Vehicles, Heavy Vehicles, Buses, Bicycles, Large Trucks, Light Rail / Trams and six user-defined Movement Classes.
Output reports and displays include all relevant performance statistics (degree of saturation, delay, travel time, stop rate, cost, emissions, etc.) according to the Movement Classes selected by the user.
Network example with a Bus Lane
For a Network example with a Bus Lane, a Route Layout picture and the corresponding Route Travel Performance output report by Movement Class are given below.
Route Layout Display
Use the Interactive Viewer below to view the Route Layout image from SIDRA INTERSECTION.
Route Travel Performance Output Report by Movement Class
Click the expandable section below to view the Output Report. Lower values of delay and better Levels of Service for the Movement Classes using the Bus Lane are seen in the report.
