TRANSYT Version History

Signal Design for Network and Junctions

TRANSYT is a macroscopic software package for designing, evaluating and modelling everything from single isolated road junctions to large mixed signal-controlled and priority control traffic networks.

  • Enhancement: New alternative triangular platoon dispersion model (PDM), and associated file preference and file option (24.7)
  • Enhancement: Triangular PDM own default dispersion and acceleration coefficients (24.7)
  • Enhancement: “First time wizard” extended to include Chilean setup values
  • Enhancement: Russian language version: New translations added
  • Enhancement: bus/tram dispersion coefficients can now be applied to each individual traffic stream or link (25.7.1)
  • Enhancement: Improved OD matrix flow allocation “Lane Balancing” for when relevant “paths” are unconstrained
  • Enhancement: User Guide now opens within program with a wider range of PDF readers
  • Enhancement: Option to “save files without results included” is now available (6.14.5)
  • Revision: HTML report revised to report relevant dispersion coefficients
  • Revision: New TRL Software contact details referenced
  • Revision: Arm IDs accept longer IDs, to facilitate new TRANSYT export from Junctions 9
  • Revision: Warning message about missing nodes is now suppressed in some circumstances
  • Revision: Priority Junction major road data item tool-tips improved
  • Revision: Revised user guide, reflecting the various product enhancements – Issue K
  • Fix: Results no longer flagged as out-of-date when they’re not (Related to RR67 data)
  • Fix: 125% DPI setting no longer affects “Main Data” Window and various tick-boxes
  • Fix: Cost unit symbol now taken account of when opening Library Files
  • Fix: Reported delay/queue associated with a give-way with zero capacity and with random give-way parameters both set to true, now corrected
  • Fix: Wide-area matrix fix relating to use of “Allow looped paths on traffic nodes”
  • Fix: Importing of normal traffic sub-category flows now works properly
  • Fix: Indexing issues with multiple sets resolved
  • Fix: Stops calculation revised to accommodate the presence of short moving queues
  • Fix: Issue with the order of links across time-segments resolved
  • Fix: Problem relating to deleting traffic streams referenced by give-ways now resolved
  • Fix: Optimiser no longer affected by presence of different cycle times within one network
  • Fix: Rotation of master controller timings, no longer causes mismatch with animations
  • Enhancement: Option to rotate all signal timings, in order to retain the same master controller offset after optimisation (or to set the master controller offset to zero) (26.5.6)
  • Enhancement: Easier to spot differences in intergreen matrix that involve absent conflicts
  • Enhancement: Right-click option on the main menu Data Grid & Data Editor button, allows you to quickly change from grid to editor or vice versa for the currently displayed topic
  • Enhancement: Multi-selection now easier, as selection is less readily reset
  • Enhancement: Data grids now allow multiple rows to be deleted in one go
  • Enhancement: Network diagram orange highlighting ‘toned down’ with opacity option added
  • Enhancement: If a filter is applied, selections in the diagram now only apply to filtered items
  • Enhancement: Network Diagram upstream/downstream arrows fade colour to reflect distance from origin
  • Enhancement: SCATS volume flow import now works with either 48 detector file format or older 24 detector file format and also with multiple approaches within the exported file
  • Fix: Network diagram text orientation is now correct when rotated in 3D mode
  • Fix: Time distance Diagram no longer crashes when the data it shows is removed
  • Fix: Stage Sequence Diagram: Right-click options no long cause any crashes
  • Fix: Demo mode no longer erroneously taking account of the number of previous changes in the file prior to opening it. This ensures demo mode always allows a limited number of small changes to data files
  • Fix: Reports including diagrams are no longer intolerant of filenames that include ampersands
  • Fix: Unrestricted stop lines and bottlenecks now more visible in network diagram
  • Fix: Stage sequence diagram: Blue animation now works correctly for repeated stages
  • Fix:Traffic streams can now be connected downstream of links (i.e. flows retained)
  • Fix: The special screen right-click menus now works as expected
  • Fix: Flow Mode graph now shown when selecting paths via local matrix
  • Fix: Hidden (pedestrian) end-of-green amber value is no longer erroneously added to the intergreen when using clearance times
  • Fix: Editable bus and tram acceleration rate now exposed as correct value. Note: This is only relevant if the default has been changed
  • Fix: 125% Windows DPI setting no longer results in cropping of text in Traffic Streams window
  • Fix: Matrix path item names (and references to them) now updated during file merging
  • Fix: Up-to-date red/green check is no longer broken by “proportion that turn” data item
  • Revised User Guide – Issue J

Users of TRANSYT 15.0 and 15.1 might also benefit from looking at this short list of changes:

(References to relevant sections of the User Guide are shown in brackets)


  • Modelling Improvements
    • Automatic network structure minimisation used to speed up optimisation runs
    • Tool to auto-calculate pedestrian conflicts from the network diagram (15.5.3)
    • Tool to auto-calculate pedestrian intergreens from a scaled diagram (15.5.3)
    • Reducing cycle times is less likely to result in invalid initial timings
    • Option to set cell saturation flow values automatically
    • Minimum saturation flow value reduced to 50 PCU/hr
  • Data handling improvements
    • Saving of results for all analysis sets within one file (6.14.6)
    • Run all data sets in one go (Evaluation or optimised) using ‘run button’ dropdowns (6.8)
    • Red/green colour-coded tracking of up-to-date and out-of-date results (6.13)
    • Analysis sets and demand sets can be colour-coded to assist in keeping track of categories of sets, or to match up related demand sets (12.5)
    • Main menu right-click options allow analysis/demand sets to be added or removed
    • User-selectable sharing of data items between data sets (12.3)
    • local OD Matrix can use flows from another local OD Matrix (13.4.5)
    • OD Matrix grids now only show locations associated with the currently displayed traffic type, making them smaller and easier to use
    • Ability to update multiples of the same data item in one go, using a data grid.  Newly applies to dropdown selections and check boxes as well as text and numbers (6.12)
    • Dispersion coefficient data-entry simplified
  • Lane-flow diagram “flow overlays” (10.10.9)
    • Show demand flows, achieved flows, or lost flows
    • Filter (and colour-coded) by origin and/or destination, by OD matrix or by OD Location
  • Network representation/diagram redesigned to improve ease-of-use (10)
    • Stop-lines improved
    • Auto-set lane arrows, based on estimated traffic turning movements (10.5.2)
    • Quickly show results on background without network structure (10.10.4)
    • Manipulating backgrounds no longer suffers from annoying de-selection
    • Option to suppress bend points (default is on) to speed up network creation (6.18)
    • Right-click ‘control’ type selection easier to use
    • Existing collections can now have items added to them, via the right-click menu
    • Second phases can now be specified using the traffic stream right-click menu
    • Connectors now have direction arrows
    • Improved scaling of overlays of pedestrian and vehicle flows
    • Option to hide toolbars
    • Quick flares now more visible (16.2.2)
    • Orange highlighting now easier to see when zoomed out
    • Most network overlays now have a full key
  • General graphical interface improvements
    • Ability to take any window outside of the main window by double-clicking on its header (6.17.2)
    • Fully labelled tool bars for ease-of-use
    • Layout of special windows improved (e.g. Main Data window)
    • Multiple data editor windows can be open at the same time (7.4)
    • Freezing of data editor/data grid contents using a forth-level padlock, allowing you to compare before and after results (6.11)
    • Stored window layouts now work with multiple monitors (6.17)
    • Size of the underlying network structure (path segments) of traffic stream network now reported in the bottom right-hand corner of the main window (6.8.1)
    • New “sync” button (see main menu) forces data grid to display data related to currently selected data item (9)
    • New “Fast mode” (see “Data” menu) increases GUI responsiveness when working with large networks (6.6)
    • Copy and pasting of part sections of any data grid now allowed
    • Improved quality of copy and pasted graphics (including option to define image resolution) (10.4)
    • New “Exhaustive data outline” option (Default is off) hides non-essential items unless they already exist in the file (6.18)
    • Use of new default OD Matrix settings ensures the use of traffic nodes is optional
    • Various minor enhancements to Audit Trail facility (23.1)
    • Task List has wrapping text descriptions to make long messages easier to read
  • Other diagram improvements
    • New “phase diagram” option in stage sequence diagram (15.7.5)
    • Layout and available options for stage sequence diagram improved generally
    • In the stage sequence diagram, two options have been added to select alternative sequences and to set the currently displayed sequence as the active one (15.7)
    • Option to hide banned stage transition diagram in stage sequence diagram
    • Multiple cycling shown differently
    • Intergreen matrix banded stage changes more logically uses crosses instead of ticks
  • Reporting Improvements
    • Enhanced file comparison that allows comparisons between separate files and also within the same file, e.g. between different data sets (20.4)
    • Vertical toolbar “Results” button to speed access to most important summaries (19)
    • Rows of tables containing the same data are collapsed down to a single “All” row, and hence reduces the length of reports
    • Signal timing penalties now reported as part of the controller results (21.3.1)
    • Enhanced cyclic flow profile (CFP) and analyser graphs (19.4)
    • Both CFP and Traffic graphs can be added to reports in either single or double column format (19.4)
    • Wide-Area Matrix tables now available in the HTML report (21.1)
    • New option to suppress pedestrian tables (21.1)
    • Local matrices’ general settings now in HTML report
    • Minor Final Prediction Table improvements

Current Version: 15.5.2Version History

System Requirements:

Windows 7, Windows 8 or Windows 10 (64-bit versions of named OS)

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TRANSYT 16 Foundation+Advanced Course (3-Day)
9th - 11th October 2019 at Crowthorne
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TRANSYT 15 Demonstration Video

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