• Changes from Version 0.20.0 to Version 0.21.0
Changes from Version 0.20.0 to Version 0.21.0

Release date: 11.06.2014

Bugfixes#

  • Simulation
    • Fixed infinite loop when tls-phases were shorter than the step-size
    • Fixed bug where vehicles would block the intersection when stopping at the very end of a lane due to a red light
    • Fixed lane-changing bug which could cause differing results between different compilers due to uninitialized memory.
    • The vehicle class ignoring now properly ignores edge permissions and is allowed to drive anywhere.
    • Time values are now checked on input whether they are in the correct range (less than 2147483 seconds)
    • Teleport over an edge which has a stop now removes the stop from the list of pending stops
    • the IDM and the IDMM car following model now stop closer to the halting line (in front of intersections), furthermore the moving average in the IDMM was repaired
    • Bluetooth device handles subsecond simulation correctly
    • Fixed check for slow lanes ahead of the depart position to allow for higher insertion speeds
    • Repaired rerouting of vehicles which are on an internal lane
    • Several fixes with teleporting over, on and onto induction loops and range detectors.
    • Fix to the computation of the expected time at which vehicles leave an intersection. This results in a minor increase in junction throughput.
  • sumo-gui
    • The time shown in the gui now matches the time found in simulation outputs for the shown vehicle positions. Previously, the gui showed the time + 1 step.
    • Fixed crash when drawing persons
    • Patched building under macOS, thanks to Alex Voronov
    • lane coloring by netto occupancy no longer shows brutto occupancy (see lane coloring).
    • drawing of simple vehicle shapes now always uses a distinct color for drawing details.
    • Fixed crash when closing the breakpoint editor
    • Fixed crash when loading viewsettings and changing them immediately.
  • netconvert
    • when loading traffic light programs from tllogic-files, the node attribute controlledInner is now propperly preserved
    • guessed traffic light programs no longer contain duplicate consecutive phases
    • Fixed bug where option ramps.guess would sometimes fail to add necessary lanes.
    • Extremely short internal lanes are no longer split. Instead a warning is issued since these cases usually indicate an invalid junction geometry.
  • dfrouter
    • removed option --all-end-follower as it's not longer needed and buggy
  • duarouter
    • when using tazs (districts) they are now correctly attached to the network with an edge with travel time 0 (before it was 1)
  • TraCI
    • subscriptions for VAR_LOADED_VEHICLES_IDS now work
    • when setting lane change mode to prevent all changes due to a certain change-motivation, motivations with lower priority are now correctly considered.
    • adding a vehicle with a negative depart position gives an error message (applies only to ADD not to ADD_FULL)
    • adding a vehicle with a depart time in the past gives an error instead of silently dropping the vehicle
    • vaporizing parked vehicles is now possible #1166
    • forcing a lane change for a stopped vehicle now correctly removes the current stop from the list of pending stops
  • Tools
    • Fixed bug where sortRoutes.py would produce invalid XML (thanks to Pieter Loof for the patch)
    • Fixed bug in traceExporter.py when generating files for NS2 which caused non-sequential IDs to be written.
  • General
    • Fixed several divisions by zero and integer over- and underflows reported by the clang sanitizer
    • Trying to open existing files which do not have reading permissions now gives a correct error message
    • All tools now give error messages when an output socket is not any longer available on closing

Enhancements#

  • Simulation

    • Added improved capabilities for pedestrian simulation
      • Added option --pedestrian.model <STRING> with available values nonInteracting and striping. The most important features of the striping model (which is the new default are:
      • Pedestrian cross streets and interact with traffic (blocking vehicles, blocked by vehicles, reacting to traffic lights)
      • Pedestrians interact with each other (jam)
      • Pedestrians select their route dynamically to avoid red lights when multiple paths across an intersection are available.
      • Added options --pedestrian.striping.stripe-width <FLOAT> and --pedestrian.striping.dawdling <FLOAT> to configure the 'striping'-model
    • Added option --lanechange.overtake-right <BOOL> to switch between german overtaking laws (default) where overtaking on the right on highways is prohibited and american overtaking laws
    • Vehicles which are already on a junction but have to wait for another vehicles (also on the junction) now always drive up to point where their path crosses with the blocking vehicle.
    • Added option --random-depart-offset <TIME> to randomize departure times for all vehicles by applying a positive (uniform) random offset.
    • flow elements now support attribute probability for specifying flows with randomly distributed departures (following a binomial distribution). Each second a vehicle is inserted with the given probability (which is scaled according to the given --step-length).
    • Vehicles with a vType which has a specified vClass will now get appropriate default values for some of their parameters (i.e. busses will be longer than 5m by default). Refer to Vehicle_Type_Parameter_Defaults for details.
    • the option --scale <FLOAT> can now also handle values > 1 and inserts more vehicles in this case
    • added HBEFA3 emission model
    • added outputs conforming to the Amitran standards
  • sumo-gui
    • the option --no-warnings <BOOL> now also applies to the GUI message window
    • Added person coloring scheme by selection and by angle
    • All person modes now give a waitingTime
    • Person parameter dialog now includes attributes 'edge', 'position', 'angle' and 'waitingTime'
    • Pedestrian crossings are now indicated by the typical zebra-pattern (light color indicates that pedestrians have priority, dark color means that vehicles have priority)
    • Showing permission code in lane parameter dialog, updated style color by permissions
    • Uncontrolled links (not part of a junction logic) are now shown with index -1
    • Now showing edge type in lane parameter dialog
    • Customizable drawing of ids for edges of type crossings and walkingarea
    • Added lane coloring scheme by angle
    • Lanes are now drawn with smooth shapes regardless of geometry (fixed white gaps at corners)
  • netconvert
    • Added element <crossing> for '.con.xml' files. This can be used to specify pedestrian crossings
    • Added attribute sidewalkWidth to <type> elements in .typ.xml files. If this is given, edges of this type will get an extra lane with allow="pedestrian" and the specified width.
    • Added options --sidewalks.guess <BOOL>, --sidewalks.guess.min-speed <FLOAT> and --sidewalks.guess.max-speed <FLOAT> to trigger guessing of sidewalks
    • Added option --crossings.guess <BOOL> to trigger guessing of pedestrian crossings
    • Added options --tls.guess-signals <BOOL> and --tls.guess-signals.dist <FLOAT> to interpret special traffic light nodes which surround an intersection as the signal positions for that intersection. This heuristic is useful for correctly importing a typical representation of traffic lights in OSM data.
    • Added attribute shape to <node> elements in .nod.xml files. This allows to specify a custom shape for that node.
    • can write networks in the Amitran format
  • duarouter
    • <trip> and <flow> elements now support attribute via for specifying intermediate edges to use during routing.
    • vType and route definitions can now be given in additional-files just like for sumo
    • Pedestrian walks with attributes from and to are now routed and written with attribute edges.
    • the maximum (the average) speed factor are taken into account when calculating the minimum (the default) travel times
    • References to an unknown vType are now an error (which can be ignored with --ignore-errors). Previously, an unknown vType was silently copied to the output and treated like the default type during routing.
  • od2trips
    • reads now OD matrices in Amitran format
  • Tools
    • Added randomTrips.py option --pedestrians <BOOL> to generate pedestrian walks
    • Added randomTrips.py option --max-distance <FLOAT> to limit the straight-line distance of generated trips
    • Added randomTrips.py option -a, --additional-files <FILE>[,<FILE>]* which is passed to duarouter
    • Added randomTrips.py option -i, --intermediate <INT> for generating trips with intermediate waypoints
    • Added randomTrips.py option --maxtries <INT> to control the number of attemps for finding a trip which meet the given distance constraints
    • convert almost arbitrary XML outputs (with a given schema) to CSV and protobuf, see Tools/Xml

Other#

  • Simulation
    • Removed obsoleted --incremental-dua-step and --incremental-dua-base option (use --scale instead)
  • Tools
    • Renamed randomTrips.py option for setting the id prefix of generated trips from -t, --trip-id-prefix to --prefix
    • Renamed randomTrips.py option for setting trip attributes from -a, --trip-parameters to -t, --trip-attributes
  • Miscellaneous
    • Some vClass definitions where added and others renamed. Old definitions will continue to work but some will cause deprecation warnings.
    • Referenze typemap files for importing edges and polygon data from OSM networks as well as from other formats can now be found at <SUMO_HOME>/data
    • SUMO builds now with clang as well
    • The shortcut -p for the option --print-options was removed because of possible name clashes