Eclipse SUMO 1.18.0 Is Now Available!

Thursday, June 29, 2023 - 05:26 by Angelo Banse
Community News

Dear friends and users,
we are happy to announce the release of SUMO version 1.18.0.
The download links are at

This release brings many bug fixes including a critical fix to the HBEFA4 model and refinements to the netedit python-tool features introduced in the previous release. There are many more features and fixes in this release and the most important ones are listed below. For a full list of changes, as always see

### Enhancements

- Simulation
  - Added value 'taxistand' which makes idle taxis return to a pre-configured set of locations.
  - Can now configure vehicle behavior after colliding with a pedestrian.
  - The SSM-device now supports the new surrogate safety measure "MDRAC".
  - Vehicles can now be configured to ignore specific vehicles/types during car-following

- netedit
  - Implemented new dialog for setting netedit and sumo options. This dialog supports option help, file selection dialogs and permits dynamic filtering of listed options.
  - Now supports trips and flows between TAZs.

- netconvert
  - OpenDRIVE import: now supports road objects from connecting roads.
  - OSM import: typemap osmNetconvertRailUsage.typ.xml now imports service designation.
  - Added option to add rail_signal nodes to a network that is lacking them.
  - When using option --tls.rebuild, the tltype can be changed by setting option --tls.default-type.

- TraCI
  - Added functions 'lane.getAngle' and 'edge.getAngle'.
  - Added function 'vehicle.getJunctionFoes'.
  - Function traci.vehicle.setStopParameter and getStopParameter now supports optional argument customParam=True to work with user defined stop parameters.
  - 'vehicle.setImpatience' and 'vehicle.getImpatience' now set/get the dynamic impatience value which is affected by waitingTime
  - vehicletype domain now support the functions set/getBoardingDuration and set/getImpatience.

- tools
  - added options --from-stops and --to-stops to define pedestrians, personTrips and person rides from and to stops (i.e. busStop).
  - and now show the plot by default.
  - Now supports attribute value @DENSITY to create density plots.
  - routeSampler: Added option --taz-files and support for loading origin destination matrices in tazRelation format.
  - Now permits analysis of planned and actual travel time between pairs of stops.
  - now supports option --parallel-jobs to speed up data retrieval.
  - more options and features for table generation
  - now supports portion working (vehicles with depart="split").

### Bugfixes

- Simulation
  - Setting param vTypes for actuated and delay_based tls detectors is working again. (regression in 1.15.0)
  - Fixed invalid emission and consumption outputs for the HBEFA4 emission classes (model was calibrated on km/h instead of m/s).
  - The simulation now aborts when encountering an invalid stop definition (unless option --ignore-errors is set).
  - Fixed crash when loading state with vehicles that have triggered departure.
  - Fixed crash after rerouting and losing a stop.
  - A parkingReroute now works even if the parkingArea on the current edge is not included in the alternatives list.
  - IDM no longer violates right of way due to imprecise stopping at minor link.
  - Fixed multiple problems causing emergency braking and collisions
  - Fixed multiple problems with bidirectional lane use

- netedit
  - Fixed crash when importing OSM data direclty. (regression in 1.16.0)
  - Saving plain xml now works when selecting an existing plain-xml file to define the output prefix. (regression in 1.16.0)
  - Fixed invalid undo operation after moving a set of network elements. (regression in 1.16.0)
  - Fixed segfault when closing netedit and no net is loaded (regression in 1.17.0)
  - Fixed spacing for person mode path info subframe. (regression in 1.17.0)
  - Loading Data Elements via menu item is working again. (regression in 1.17.0)
  - netdiff-dialog now permits to change the output prefix.
  - Fixed invalid default values in netgenerate dialog and tool dialogs.
  - Boolean options can now be reset in tool dialogs.
  - A person with a single stop stage is now visible after loading.
  - Z value is no longer applied twice in move mode.
  - Using netedit to define custom detectors for actuated traffic lights is now working.

- netconvert
  - Fixed invalid connection permissions after joining junction.
  - Fixed broken network after setting option --tls.rebuild.
  - Fixed classification of turnaround connection on some divided highways.
  - OSM: fixed incomplete public transport route.
  - OSM: fixed problems with one-way bus and bicycle infrastructure.
  - OSM: fixed crash when using option --osm.turn-lanes.
  - Fixed unsafe signal plan at joined tls.
  - various fixes for bidirectional rail and road edges

- duarouter
  - Fixed railway routing failure if the stop is defined on a short buffer edge (also applies to sumo).
  - Fixed invalid ride in output when starting personTrip on rail edge.
  - Fixed invalid route output when a personTrip provides alternative vehicle modes.

- activitygen: fixed crash when there are no work positions within a city.

- TraCI
  - Fixed crash when calling traci.load and running with sumo-gui. (regression in 1.16.0)
  - Calling vehicle.insertStop now preserves the original route edges beyond the inserted stop.
  - Fixed missing vehicle type in saved state and vehroute-output for vehicle added via TraCI.

- Tools
  - Fixed mouse control in several game scenarios. (regression in 1.17.0)
  - Fixed error when calling some tools without argument. (regression in 1.17.0)
  - Networks with non-normalized offsets now create correct taz shapes.

### Miscellaneous

- Many tools now repurpose the -c shortcut for loading a configuration. All options that previously used this shortcut continue to work with the respective long option name.
- and no longer create output file 'plot.png' by default (use option --output FILE instead)
- netconvert: option --osm.all-attributes now defaults to exporting all attributes because the explicit list of attributes (--osm.extra-attributes) now defaults to value all.
- netconvert: increased default bike path width.
- traci.simulationStep has no return value on Python any longer (similar to the other languages), use traci.simulationStepLegacy for the old behavior.
- The default file extension for netedit configuration files was changed from .neteditconfig to .netecfg for consistency with other config extensions.

Have fun with the new release,
Robert, Johannes, Michael, Yun-Pang, Pablo, Mirko, Benjamin, Angelo and Jakob

Is this a press-release?