Dear Jacob, Thanks for the insights and suggestions.
If I go by your suggestion, I would add and modify the time varying attributes of lane / edge as Generic Parameters using python interface of TraCI. I could locate the documentation of *setParameter*(self, objID, param, value) and *getParameter*(self, objID, param) at https://sumo.dlr.de/pydoc/traci._lane.html. Is it possible to call these functions from the runner.py script at a specific time in simulation? Further, I would like the car-following model to access these parameters only when they are defined and adapt movement of vehicles traversing over the lane/edge accordingly. Will it be possible to have such behaviour? Regards, Manish It seems that for incorporating the stated parameters and car following models, I will have On Wed, Jan 22, 2020 at 2:23 PM Jakob Erdmann <namdre.s...@gmail.com> wrote: > Dear Manish, > After some internal discussion we would prefer to keep a distinction > between 'core' road attributes and extended attributes. > Core attributes are configured directly within the edge or lane element > e.e <edge id="1" speed="13.89" ../> > Extended attributes are configured as <param> elements within the edge or > lane element. > Currently, the core attributes mostly pertain to "immutable" qualities of > the network (e.g. posted speed limits or lane count). > The 'friction' attribute as well as 'visibility', and 'water clogging' > mostly pertain to temporal aspects of the road network so we would delegate > them to the extended mode of input specification. > > The good news is, that no files need to be modified to add new attributes. > The <param> values are directly accessible from within the simulation > models (e.g. the car following model just as the core attributes are). > Also, netedit allows editing these attributes. For details, see > https://sumo.dlr.de/docs/NETEDIT.html#generic_parameters > The only major change that needs to be done is to rework the > variableFriction object into a variableParam object > (it should be capable of modifing arbitrary lane <params> at specified > times. This would also fit well with modelling time-variations for all the > other road quality paramters you mentioned. > https://github.com/eclipse/sumo/issues/6532 > > Also, the way <params> for multiple elements are modified at the same time > needs to be improved in netedit (you will probably figure out what I mean > when you try to do this). I've described the task in more detail at > https://github.com/eclipse/sumo/issues/6531 > > best regards, > Jakob > > > > > > Am Mi., 22. Jan. 2020 um 06:25 Uhr schrieb Manish Chaturvedi < > msc....@gmail.com>: > >> Dear Jacob, >> >> Thanks for your reply >> >> I have access to their source files, which implements Friction parameter >> by modifying SUMO-0.32 version. >> >> I am working on the latest version of SUMO i.e. 1.4 wherein the source >> code differ significantly from SUMO-0.32. I would be happy to contribute >> my version of code to SUMO under the open source licence. We are interested >> in incorporating the road quality, environmental effects (e.g. visibility, >> water clogging), side friction due to road side parking or shops,etc. into >> the SUMO road network. >> >> *I wanted to know whether there is any tutorial / wiki that explains the >> hierarchy of files involved in adding the parameters in network.* >> I wanted to know about how to modify the network implementation. What are >> the files involved and in which sequence they need to be edited for adding >> one or more parameters in road network? >> >> Can you give some pointers to documentation about set of files (and in >> which sequence) to be edited the network implementation? >> >> Regards, >> >> Manish >> >> >> On Wed, Jan 22, 2020 at 12:44 AM Jakob Erdmann <namdre.s...@gmail.com> >> wrote: >> >>> Hello, >>> I suggest you contact the authors and ask them to provide their files. >>> I would be happy to integrate the friction extensions into sumo if they >>> are willing to provide the code in accordance with our open source license. >>> regards, >>> Jakob >>> >>> Am Di., 21. Jan. 2020 um 12:44 Uhr schrieb Manish Chaturvedi < >>> msc....@gmail.com>: >>> >>>> Dear SUMO-Dev Community, >>>> >>>> I am starting to work on extending the SUMO road Network by adding a >>>> few parameters and using them in a car-following model. >>>> >>>> I came across the work by Seeroad project >>>> https://www.uni-due.de/mechatronik/forschung/seeroad_en.php >>>> and their paper presented in SUMO User Conference 2019 titled >>>> "Introducing Road Surface Conditions into a Microscopic Traffic >>>> Simulation". >>>> I could also find the documentation for editing the car following model. >>>> >>>> However, I am unable to get any information about how to modify the >>>> network implementation. What are the files involved and in which sequence >>>> they need to be edited? >>>> >>>> Can you give some pointers to documentation about set of files (and in >>>> which sequence) to be edited the network implementation? >>>> >>>> Regards, >>>> Manish >>>> >>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> sumo-dev mailing list >>>> sumo-dev@eclipse.org >>>> To change your delivery options, retrieve your password, or unsubscribe >>>> from this list, visit >>>> https://www.eclipse.org/mailman/listinfo/sumo-dev >>>> >>> _______________________________________________ >>> sumo-dev mailing list >>> sumo-dev@eclipse.org >>> To change your delivery options, retrieve your password, or unsubscribe >>> from this list, visit >>> https://www.eclipse.org/mailman/listinfo/sumo-dev >>> >> _______________________________________________ >> sumo-dev mailing list >> sumo-dev@eclipse.org >> To change your delivery options, retrieve your password, or unsubscribe >> from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-dev >> > _______________________________________________ > sumo-dev mailing list > sumo-dev@eclipse.org > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-dev >
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