NEXUS - Features and Compatibility

• Dynamically generate junctions using any or a combination of the four different methods: Lane Configuration; Capacity Conditions; Leg Templates; Intersection Templates
• Create junction layouts with schematic pavement markings and edges, traffic direction arrows, control radii, corner geometry, and island envelopes
• Define the alignment location in relation to the junction lane and road lanes
• Add legs by selecting a predefined template or user-generated template
• Add junction by selecting a pre-defined template
• Specify the median island envelope and divisional island envelope width
• Define the parameters related to the storage length in auxiliary lane
• Specify stop bar parameters for length, line width, and start position
• Set crosswalk parameters for line width, width, and start position
• Save, update, recall, and preview different junction iterations with design manager

• Define bay taper ratio and auxiliary taper type (straight line taper; symmetrical; reverse curve; asymmetrical reverse curve; partial tangent taper)
• Insert crosswalks with the ability to define the start position and rotation
• Draw islands, corner islands, and medians on a specific layer with different colour codes
• Add bike lines with Bicycle Lane Symbol schematic pavement markings
• Ability to align one stop bar to another stop bar in the adjacent lanes
• Include road gutters created from a constant offset from the road edge
• Define corner island envelope including slip lane width, entry and exit offset
• Choose from three corner geometry types: Arc, Biarc, Triarc (Entry and exit tapers can be added)
• Configure the control radius affecting the median opening length

• Use the patent pending Vehicle Envelope Method to generate junction geometry
• Ability to define complex corner geometry with design vehicle movement
• Generate vehicle paths for left and right turns to determine nose median position, stop bar location, and corner geometry to meet swept path requirements
• Generate movements for multiple turning lanes (radius or speed)
• Calculate the best-fit Triarc corner geometry based on the inner tyre track of the vehicle path
• Define the slip lane edge of a corner island envelope based on the outer tyre track of the vehicle
• Ability to display combined inner and outer tyre track

• Create 3D grading models of a junction with vertical profiles designed to each alignment
• Draw basic contour lines based on the contour intervals for evaluating drainage patterns
• View a graphical display of the junction's vertical profile with adjustable ranges
• Add, edit, and move the VPI (Vertical Points of Interest) to a specific station and elevation
• Edit the cross slopes between a fixed alignment and offset alignment
• Add slopes at stations within a cross slope region and add a cross slope region to a corner region
• Check for maximum cross slope or minimum alignment slope in the design

• Import HCS (Highway Capacity Software) file data for signalised and unsignalised junctions to initialise geometric design and traffic flow
• Update junction from capacity conditions for signalised or unsignalised junctions by setting the parameters for number of entry lanes and exit lanes, storage length, crossing parameter (Travel Distance or Crosswalk Width), entry lane widths, and lane adjustments (Right Turn Signalised)
• Revise capacity conditions based on the NEXUS junction design in the drawing, updating the capacity conditions, and setting to be the new benchmark

• Toggle the display of sight lines on or off for a selected junction design
• Insert a new sight line assessment with the ability to override the default design criteria
• Generate sight triangles for left and right turns with user-defined stopping sight distances or from AASHTO 2004
• Check sight lines on opposing left turns on major streets to ensure adequate sight distances
• Use design values for: Perception-Brake Time; Deceleration; Acceleration due to Gravity; Approach Speeds
• Evaluate critical points, like pedestrians waiting to cross, for the stopping and sight distances

• Determine the number of conflict points from vehicle paths that cross, merge, or diverge
• Assess the conflict points of paths schematics ( left, right, through) and right/left turning radius
• Select the drive paths that need to be considered for conflict point analysis
• Draw: Conflict Points; Tally of Crossing Points; Merge Points; Diverge Points; and Total Points
• Graphically display conflict point diagram with colour coded points

• Add and remove legs from the junction by selecting lines and arcs
• Ability to replace, rotate, and shift geometry/alignments of a selected leg
• Edit lane configurations by adding or deleting lanes (up to 10 lanes per leg), lane directions, and medians
• Ability to control road widening elements including: functional area length and end offset; approach taper and start; departure taper and start
• Control lane settings for lane width, lane taper, and taper length

• Intersection Summary Report – Ability to create and view a summary report with all relative junction design information
• Capacity Conditions Report – Create a table with data on capacity conditions and the junctions summary report side by side to compare requirements

Platform Requirements:

• AutoTURN 6.1 (or higher), AutoTURN Pro 3D, or AutoTURN InSite (sold separately) installation on the same workstation
• AutoCAD® 2007 – 2011 series of products (except AutoCAD LT)
• AutoCAD® Civil 3D® 2008 – 2011
• MicroStation® V8 XM, V8i, Geopak, Inroads

System Requirements:

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

Languages Available:

• English