Hello, the routes are sampled according to their departure time so that for a factor of 0.3 roughly every third route in the route file is used. This should result in a rather even distribution in the network (no correlation between departure time and route on a low time scale). regards, Jakob
2014-01-30 Abel Hanks <[email protected]> > Thank you Jacob. > > I think we are going to use the default scale value then and in the future > we will make some adjustments based on the results we obtain. > Another question that arises is how is the scale factor applied, I mean, > how are the routes chosen? Is it completely random or are they distributed > evenly among the network? > > Regards, > > Abel > > > 2014-01-29 Jakob Erdmann <[email protected]>: > > Hello, >> the scale factor is a stopgap measure to work around problems with the >> network quality. The list of quality issues can be found here: >> http://sumo-sim.org/wiki/Data/Scenarios/TAPASCologne#Quality >> With higher scale values the scenario simply jammed. The value where this >> occurs may be a bit higher now due to improvements in the lane-changing and >> car-following models. We hope to do a new release eventually but any >> improvements from our side are most likely going to be in the area of >> automated network improvement. However, from our experience scenarios >> always need some hand-tuning to run well and nobody is doing it (and >> sharing their work) as far as we know. >> regards, >> Jakob >> >> >> 2014-01-28 Abel Hanks <[email protected]> >> >>> Hello, >>> >>> we are using the TAPAS Cologne scenario for our work on routing >>> algorithms. >>> We have found that the sumo config file that comes with the scenario has >>> a >>> default scale factor of 0.3. >>> >>> We would like to know the aim of that specific value. Is there some >>> calibration process according to the network file detail? We get a lot of >>> teleporting if we use scale 1.0, but we would like to use the most >>> realistic dataset. >>> >>> Thank you, >>> >>> Abel >>> >>> ------------------------------------------------------------------------------ >>> WatchGuard Dimension instantly turns raw network data into actionable >>> security intelligence. It gives you real-time visual feedback on key >>> security issues and trends. Skip the complicated setup - simply import >>> a virtual appliance and go from zero to informed in seconds. >>> >>> http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> sumo-devel mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/sumo-devel >>> >> >> > ------------------------------------------------------------------------------ WatchGuard Dimension instantly turns raw network data into actionable security intelligence. It gives you real-time visual feedback on key security issues and trends. Skip the complicated setup - simply import a virtual appliance and go from zero to informed in seconds. http://pubads.g.doubleclick.net/gampad/clk?id=123612991&iu=/4140/ostg.clktrk _______________________________________________ sumo-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sumo-devel
