Changes from Version 0.14.0 to Version 0.15.0

Release date: 14.03.2012

### Bugfixes

- Simulation
  - Real time factor in simulation summary is now correct (was off by factor 1000)
  - Option --route-steps now reads the given number of seconds ahead (input argument was interpreted as milliseconds, inadvertently)
  - specifying invalid departPos no longer causes an infinite loop
  - The minimum gap is now outside of the vehicle. This means, a vehicle starts at its position, the minimum breaking distance is in front of the position. This effects the retrieval of a vehicle's position via TraCI, and also the measures collected by detectors - now, the collected vehicle lengths do not contain the minimum distance anymore. see blog entry
  - consolidating right-of-way rules (again). Networks must be rebuild
  - fixed crash when using TraCI to set new TLS-programs with less phases (ticket #652)
- netconvert
  - looped ways are now correctly imported from OSM (before, these were pruned from the network)
  - fixed bug related to --proj.plain-geo (would sometimes crash or produce invalid output)
  - fixed bug in geometry computation when dealing with 3D-coordinates
  - fixed bug when joining junctions (did not join as much as requested)
  - OSM import no longer discards edges with multiple types as long as at least one type is known (this caused missing bridges etc.)
  - debugged import of VISUM-turn descriptions ("ABBIEGER")
  - fixed calculation of intersecting lines
- GUI
  - corrected the link numbering
  - no longer crashes when reload is pressed during running simulation
- duarouter
  - Option --max-alternatives is no longer ignored
  - clogit probabilities are calculated correctly

### Enhancements

- Simulation
  - Meandata output can now print default travel times / emissions on empty edges (excludeEmpty="defaults")
- duarouter
  - added Option --routing-algorithm. It supports the values dijkstra (default) and astar (new). The newly added astar algorithm uses the euclidean distance heuristic. It routes 30% faster on the road network of Cologne and 40% faster on the road network of Berlin.
  - In verbose mode, some performance measures of the routing algorithm are given
  - better defaults for emission based routing
- sumo-gui
  - object choser can now filter by selection
- netconvert
  - added Options --speed.offset and --speed.factor. These modify all edge speeds by first multiplying with factor and then adding offset.
  - added output Option --junctions.join-output FILE. This writes a protocol of joined junctions to FILE. Loading FILE as additional nod.xml reproduces these joins.
- All
  - Logging options are handled consistently
  - step logging enabled by default, can be disabled for all relevant applications (sumo, duarouter, jtrrouter, od2trips)

### Other

- Simulation
  - traffic light offset is now interpreted as delay. An offset of x delays all phases by x seconds. The old behaviour was to let all phases start x seconds earlier.

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