User's Guide.pdf - MATSim

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Comments:The main problem is that one needs to keep in mind how the choice set is constructed (see above).In most simulations, we use ExpBetaPlanChanger instead, which is a Metropolis Monte Carlo variant of making multinomial logit drawsPossible future developments: None of this is ideal, since, after the introduction of a policy, it is not clear which behavioral switchesare due to the policy, and which are due to sampling. In theory, one should have unbiased samples before and after the introduction of thepolicy, but at this point this is not implemented and it is also computationally considerably more expensive than what is done now.Network loading --> mobsim, mobility simulation, physical simulationnetwork loading --> mobsim, mobility simulation, physical simulationComments: The standard terminology has the "network loading" on the "supply side". In my (KN's) view, the "simulation of the physicalsystem" is not the supply side, but what in economics is called "technology". This can for example be seen in the fact that "lane changing" ispart of the mobsim, but this is, in my view, not a "supply side" aspect.Possible future developments: May switch to "network loading" if there is agreement that this is a better name.Stationary --> relaxedstationary --> relaxedComments: "stationary" means that the probability distribution does not shift any more. However, as long as "innovation" is stillswitched in on MATSim (new routes, new times, ...), the result is not truly stationary. Thus we avoid the word. If innovation is switchedoff, the result is indeed a statinary process, but limited to the set of plans that every agent has at that point in time.Possible future developments: not clear. Minimally, publications should be precise.Configuration:The above means:StrategyModule "ReRoute" (= innovative Module, produces plans with new routes) is switched off after iteration 950.StrategyModule "ChangeExpBeta" (= non-innovative Module, switches between existing plans) is never switched off.If an agent ever ends up with more than 4 plans, plans are deleted until she is back to 4 plans. (Deletion goes via a"PlanSelectorForRemoval", which affects the choice set, and thus more thought needs to go into this. Currently, the plan with the worstscore is removed.)Utility scoreutility scoreAt least when using random utility models (such as multinomial logit aka ExpBeta...), the score has the same function as the deterministicutility.
Building new scenariosStarting a new scenario (our term for the application of MATSim to a region/area) can appear quite cumbersome at the first glace, as a lotof data preparation may be required. In any case required for a new scenario are:description of the networkdescription of the travel demand (synthetic population)Given these two data items, you can already start building your own scenario. The "Learning MATSim in 3 days[http://www.matsim.org/docs/tutorials/learningIn3days]"-Tutorial gives you an introduction on how to build your own scenario.Import from VISUMSee here for javadoc [http://matsim.org/javadoc/org/matsim/visum/package-summary.html], and here for code[http://matsim.org/xref/org/matsim/visum/package-summary.html].ProgrammingIn many cases, using pre-configured software is not possible because there are just too many possibilities of how input could look like.Although matsim is not there yet, these should be api-only use cases, i.e. they should only use the "stable" api. Therefore, the following areunder the api-users section of the documentation:Additional information about network generation is here [http://matsim.org/node/588].additional information about initial demand generation is here [http://matsim.org/node/340].Information concerning specific scenariosThe following sections contains various information for building a scenario that presumably goes beyond what is in the tutorial.Coordinate Systems in MATSimFor some operations, MATSim must know about the coordinate system your data is in. For example, If you want to generate kml-Output forCounts-Validation, MATSim has to convert the coordinates in your network to WGS84, the coordinate system used by Google Earth.Specifying the Coordinate System usedYou can specify the coordinate system in the config-file:The value specified for the coordinateSystem parameter can be:The short-name of a coordinate system known to MATSim. We define names for coordinate systems we use regularly in our work. Thesenames are currently defined in TransformationFactory[http://matsim.svn.sourceforge.net/viewvc/matsim/matsim/trunk/src/main/java/org/matsim/core/utils/geometry/transformations/Transformationview=markup]. The short-name Atlantis stands for an artificial coordinate system which maps our examples without relation to thereal world somewhere in to the Atlantic ocean.Well-Known-Text (WKT [http://www.geoapi.org/snapshot/javadoc/org/opengis/referencing/doc-files/WKT.html]) description of acoordinate system as they are supported by Geotools. This variant is not very readable, but allows one to experiment also in regionswhere MATSim does not provide a short-name for. Examples of WKT can be found in the MATSim-class MGC[http://matsim.svn.sourceforge.net/viewvc/matsim/matsim/trunk/src/main/java/org/matsim/core/utils/geometry/geotools/MGC.java?view=markup] (in the transformations map).Notes about Coordinate SystemsAs the distance calculation in WGS84-coordinates (or any spherical coordinates) is rather complex (a simple Pythagoras[http://en.wikipedia.org/wiki/Pythagorean_theorem] is not enough), we advise people to use a Cartesian coordinate systems[http://en.wikipedia.org/wiki/Coordinate_system], preferable where one unit corresponds to one meter. Using such a coordinate system isa pre-requisit if one wants to use the optimized A*Landmarks-Router in MATSim.Using MATSim for SwitzerlandGeneral remarks
Page 1 and 2: MATSim User's GuideGenerated 2013-0
Page 3 and 4: VisualizationsnetworkEditorPolicy M
Page 5 and 6: FeaturesThe following list shows th
Page 7: TerminologyIn many cases, MATSim us
Page 11 and 12: Config(uration) optionsThis section
Page 13 and 14: [http://matsim.org/node/478].By def
Page 15 and 16: Figure 1:Figure 2:Figure 3:Planomat
Page 17 and 18: The behavior of the planomat module
Page 19 and 20: Details of the ModelDifference betw
Page 21 and 22: comparison. To activate the filter,
Page 23 and 24: The config option presumably is:...
Page 25 and 26: svn/publications/vspwp/2011/11-12/]
Page 27 and 28: Traveller increases arriving early
Page 29 and 30: which decreases with increasing t_x
Page 31 and 32: install the corresponding native li
Page 33 and 34: Using MATSim ExtensionsIntroduction
Page 35 and 36: Saving the converted dataFinally, a
Page 37 and 38: a road network in MATSim format (ma
Page 39 and 40: use_logit_scale_parameter_from_MATS
Page 41 and 42: ptStops: This parameter expects a c
Page 43 and 44: Hints for installing UrbanSimTo ins
Page 45 and 46: Travel Model configuration optionsT
Page 47 and 48: lorraine.osm.bz2luxembourg.osm.bz2n
Page 49 and 50: Use the following arguments:-conver
Page 51 and 52: ApplicationsTODO: Describe ARTEMIS
Page 53 and 54: The original data from OSM contains

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