TORUS - Features and Compatibility

• NEW! Dynamically change the approach leg reference geometry (e.g. lines, arcs, polylines/complex chains) using grip-points simplifying the testing of different vehicle entry deflection and the corresponding effects on fastest path, entry angle, and sight lines
• Leg Biarc Entry category allows viewing and editing of the approach leg offsets and radii biarc entry’s path start, radius, and secondary radius
• Addition of new offsets including: Median Offset split into Entry Median Offset and Exit Median Offset; Edge Offset split into Entry Edge Offset and Exit Edge Offset
• Set and lock roundabout geometric dimensions for: circulatory lane width; entry lane width; median width; splitter island length; crosswalk refuge area
• Calculate the vehicle drive paths for path overlap analysis and draw the entry and exit paths
• Generate single or multilane roundabouts based on design vehicle paths and clearance offsets
• Control roundabout size by changing the inscribed circle or central island diameter
• Move and position roundabouts in the overall design to dynamically evaluate optimal locations
• Specify design parameters for approach legs (offsets, widths, bypass lanes, entry/exit lanes, crosswalk sizes, splitter islands, and taper angles)
• Edit leg properties for crosswalk location, taper angle, and entry/intermediate/exit path radius
• Rotate and set approach legs around the central island
• Modify inscribed circle diameter, central island diameter, and circulatory roadway width
• Draw truck apron width based on design vehicle movements or user-defined specifications

• NEW! Import roundabout capacity analysis data from SIDRA INTERSECTION 5.1 (sold separately) into the current roundabout design
• NEW! Link SIDRA INTERSECTION data values to any of the TORUS geometric design methods (i.e. Vehicle Envelope or Regional Design Methods)
• NEW! Make geometric design changes to the roundabout layout and instantly evaluate the resulting impacts on traffic capacity
• NEW! Export the synchronized capacity data from TORUS Roundabouts for further study in SIDRA INTERSECTION
• NEW! Set the layer/level on which the capacity analysis resulting data will drawn in the roundabout design
• NEW! Select which elements (Fuel Consumption, Emissions, Cost, Delay, Capacity, Speed, Volume, and Queue) to draw and adjust each element’s color and line style

• Support of arcs in lot boundaries for use in the creation of perimeter rows and curved access and internal drive aisles
• Draw grading model to represent the roundabout’s crown alignments and cross slopes
• Ensure drainage patterns work within the roundabout (e.g. slope away from the central island)
• Ensure low points or inlets are not located in crosswalks
• Check grading values for: Maximum Cross-Slope percentage; Minimum Alignment Slope percentage; and Contour Line Resolution value
• Edit the Vertical Profile of an Alignment or Corner Region
• Ability to edit a cross-slope region in the grading model
• Add vertical curves to an alignment by K-Value with the Edit Vertical Profile Tool
• Add VPI (Vertical Point of Interest) to alignments using the Edit Vertical Profile Tool
• Add a cross-slope region to subdivide a cross-slope or corner region in the grading model
• Add subdivided circular cross slope regions into multiple cross slope regions
• Extend or shorten the length of the grading model along a leg in the roundabout
• Export grading model as LandXML to be imported into vertical CAD platforms

• NEW! Support of polylines and complex chains as reference alignment geometry allowing for the design of complex approach legs defined by curvilinear geometry
• Employ vehicle speed reduction treatment using successive curves on approaches (i.e. two reverse curve approach curves in advance of the entry curve)
• Set offset geometry for: inscribed circle diameter; circulating roadway; bypass lanes; roundabout footprint
• Generate edges based on design vehicle tyre tracks, offsets and radii as specified in guidelines
• Refine complex edge geometry into lines and arcs, then output survey data to a curve table

• Support for regional roundabout design standard guidelines including UK, France, and Germany
• Ability to purchase, install, and work with AutoTURN Extended Vehicle Libraries
• Use maximum and minimum ranges for design conditions including: inscribed circle diameter; center island diameter; circulatory roadway width; entry and exit width; circulatory roadway width to entry width ratio; effective flare length; entry angle 1; entry angle 2
• Set analysis conditions for: fastest path; fastest path speed consistency checks; path overlap
• Preselect roundabout parameters for initial sizing and sitting
• Specify multiple design guidelines containing default values that can be applied to the drawing
• Update, preview, and recall different roundabout design iterations for quick comparison of layouts
• Ability to save, update, preview, and recall previously created roundabouts

• Vehicle entry speed (V1a) into a roundabout is now calculated to approximate the entry speed based on deceleration rate specified in the design guideline
• Individually control the offsets used in determining each fastest path. The offsets can also be applied globally to all paths
• Analyse the exit radius (R3) and exit speeds (V3) while accounting for the circulating speed and acceleration distance based on FHWA research and NCHRP Report 572
• Generate a vehicle’s fastest path through a roundabout for design analysis and checking
• Calculate and display fastest paths based on theoretical edges and refined edges of a TORUS generated roundabout
• Specify fastest path design values for leg and circulatory superelevation, speed differences and offsets from central island, median, and edges

• NEW! Angle of visibility sight line (from the NCHRP 672 publication) that shows the driver's viewing angle for oncoming traffic in the opposing approach leg
• Evaluate critical sight lines between approach legs and specific roundabout features
• Insert sight lines assessments for 5 main visibility checks: Approach to Crosswalk; Approach to Yield Line; Yield to Crosswalk; Intersection; Circulatory
• Add a new sight line assessment into an existing roundabout design
• Specify sight line design values for speed, approaches and driver’s eye location
• Select colors and line styles to differentiate roundabout sight lines
• Import and use AutoTURN realistic vehicle plan views (AutoTURN is sold separately)
• Visual indicators and warnings displayed in cases of safety or performance issues

• Ability to simulate an alternate right turn movement (450 degree turn) to allow the vehicle to maneuver around the roundabout once before it exits to the adjacent leg
• Generate and display standard design vehicle path movements between approaches
• Review and display previously generated vehicle movements and adjust entry/exit approach leg, driving lane, and standard design vehicle
• Vehicle movements are updated dynamically when design edits are applied to a roundabout
• Use saved simulations with Transoft Solutions’ presentation software, InVision (sold separately) and create timed sequencing of vehicle movements. Files can then be exported into selected video formats for playback on any PC with popular video players

• Set the maximum tolerable distance that refined edges will encroach into the theoretical edges; Specify multiple design guidelines containing default values that can be applied to new or existing roundabout designs
• Add or remove approach legs in a roundabout design
• Ability to replace approach leg reference geometry
• Specify up to two entry and exit lanes in approach legs
• Specify color and line style for vehicle body clearance, tires, envelopes, and swept paths
• Import and use AutoTURN realistic vehicle plan views (AutoTURN is sold separately)
• Visual indicators and warnings displayed in cases of safety or performance issues

• NEW! Area Estimation Report – Generate a report that shows the approximate land area and perimeter used by a selected roundabout. Different parts of a roundabout can also be reported on for cost estimation purposes
• NEW! Geometry Comparison Report – Produce a list comparing the original values from the capacity analysis software and the current TORUS roundabout values
• Summary Report – Create a report with all required design information that can be viewed and exported to text and CSV format files
• Fastest Path Results – Generate a table that can be inserted into the drawing containing all the vehicle speed and radii dimensions for the Fastest Path evaluation
• Curve Table – Create a table that can be inserted into the drawing with refined edge geometry dimensions that correspond to the geometric labels
• Turning Report – Generate a report with a graphical representation of the vehicle's steering angle over the length of the picked movement and the articulating angle for two-part vehicles

Platform Requirements:

• AutoTURN 8.0 or AutoTURN Pro 3D (sold separately) installation on the same workstation
• AutoCAD® 2007 – 2012 series of products (except AutoCAD LT)
• MicroStation® V8 XM, V8i

System Requirements:

• Full support for 32 and 64-bit operating systems
• Workstation: Windows® XP, Vista, Windows® 7
• Network: Windows® Server 2000, 2003, 2008

Languages Available:

• English, French, German