To clear some things up: - junction type 'unregulated' in SUMO means, that no right-of-way rules are observed at all ( http://sumo.dlr.de/wiki/Networks/Building_Networks_from_own_XML-descriptions#Node_Descriptions ) - when building networks with netconvert the following thing holds true for every edge: - if any lane-to-lane connections from that edge were specified by the user (i.e. by loading a .net.xml.file or a .con.xml-file) netconvert will not guess connections - otherwise, netconvert will guess connections from that edge according to its heuristics - in netedit connection-mode there is a button for resetting the connections for selected intersections, which triggers a complete recompute for those intersections - At dead-end junctions there should typically not be any jams since they are not used during routing. (Unless you do not updated your routes after network changes). However, bad connectivity in the network can cause jamming due to required detours
regards, Jakob 2015-11-08 12:17 GMT+01:00 Ben Postance <[email protected]>: > Thanks Michael > > I think I have found the problem, when adding edges a number (754 out > 20000) have become "dead_end" junctions. > > Just to confirm, If i change the type to unregulated or priority will > connections automatically be rebuilt or will I have to build them manually > using conf file or netedit? > > Thanks > > Ben > > ________________________________________ > From: Michael Behrisch <[email protected]> > Sent: 08 November 2015 7:57 AM > To: Ben Postance; [email protected] > Subject: Re: [sumo-user] 9GB summary file > > Hi Ben, > in my experience it is not unusual that small changes in the network or > the demand lead to a total traffic breakdown which results in a vastly > increased number of simulation steps (and hence a much larger summary > file). Since teleports only occur for the first waiting vehicle on a > jammed street a small teleport threshold does not always help here. > > Best regards, > Michael > > > > Am 07.11.2015 um 18:20 schrieb Ben Postance: > > Hi > > > > I have a simulation that usually incurs a summary file of around 4000kb. > > > > I have made some changes to the network and now the summary files is in > excess of 9GB. This seems a bit of a drastic changes seeing as thought I > only added about 200 extra roads. My thought is that perhaps some vehicles > are becoming repeatedly stuck hence the increase number of simulation > steps / summary file. However I have a time to teleport value of 50 so I > also doubt this. > > > > > > I am using 0.24. I believe its due to changes I made to the network and > I will view the simulation in the GUI to see whats occurring. > > > > > > But might you have any other ideas as to what might possibly cause such > a huge summary output? > > > > > > Thanks > > > > > > Ben > > > > > > > > > > > > > > Benjamin Postance > > > > Postgraduate Researcher Student > > > > Department of Geogrpahy > > > > Loughborough Univeristy > > > > > > @benpostance > > > > http://www.lboro.ac.uk/departments/geography/staff/postance-b.html > > > > > ------------------------------------------------------------------------------ > > _______________________________________________ > > sumo-user mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/sumo-user > > > > > > ------------------------------------------------------------------------------ > _______________________________________________ > sumo-user mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/sumo-user > ------------------------------------------------------------------------------ Presto, an open source distributed SQL query engine for big data, initially developed by Facebook, enables you to easily query your data on Hadoop in a more interactive manner. Teradata is also now providing full enterprise support for Presto. Download a free open source copy now. http://pubads.g.doubleclick.net/gampad/clk?id=250295911&iu=/4140 _______________________________________________ sumo-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sumo-user
