1) upgrade to version 1.2 2) Vehicles are equally spaced in time, as long as there is enough (safe) space for insertion. It helps to set departSpeed="max" because then vehicles can adjust their insertion speed so that the gaps are used most efficiently. For keeping a constant vehicle number, see https://sumo.dlr.de/wiki/FAQ#How_do_I_maintain_a_constant_number_of_vehicles_in_the_net.3F 3) Calibrators try to avoid insertion until the end of their calibration interval so that vehicles that might still arrive from upstream don't have to be deleted. For long calibration intervals this may introduce artificial clustering of vehicles. It should work fine if you set smaller intervals (e.g. 120s). If that still doesn't work, provide a minimal sample scenario that demonstrates the unexpected behavior.
regards, Jakob Am Di., 30. Apr. 2019 um 16:42 Uhr schrieb Ben Redouane < [email protected]>: > Dear Sumo Community, > > I am quite a beginner and I have actually three different questions > > The first is concerning the "harmonicMeanSpeed" output from Induction loops > that I am not able to generate for unknown reasons > > Def: > > <inductionLoop id="CV_1" lane="-5005.0.00_0" pos="300" freq="60.00" > file="CV_detInfo.xml" friendlyPos="1" vTypes="CV"/> > > Output: > <interval begin="0.00" end="60.00" id="CV_1" nVehContrib="26" > flow="1560.00" > occupancy="7.66" speed="28.40" length="5.00" nVehEntered="27"/> > > > The second is more of a general issue with what "equally spaced" in > vehicular flow means (eg. when using vehsPerHour). I tried to find some > sort > of cycles for the distribution by analyzing the resulted flows but I > couldn't find any. So I had to use Calibrators to ensure a constant number > of vehicles on the network as I wanted to simulate different LOS. > > And here Comes the Third question regarding how calibrators behave(per > default frequency) knowing that I am applying a per lane calibrator on a 3 > lanes motorway with different flows per lane. > As I start my simulation, the first two calibrators start only removing > additional vehicles while the third is doing nothing even if it actually > had > no vehicles passing through (shouldn't it insert?). Next, vehicles in the > first two lanes stopped and the 3rd calibrator then start generating some > vehicles and done! > > The begin/end periods are the same for all three and the results are always > showing that the first two lanes are well calibrated while the thrid is > only > having a 24veh/hour flow which is tooooo low. I just wonder how the > calibrators logic works. > > I apologize for these long questionS and thank you for your support! ^^ > > Sincerely, > > > > -- > Sent from: http://sumo-user-mailing-list.90755.n8.nabble.com/ > _______________________________________________ > sumo-user mailing list > [email protected] > To change your delivery options, retrieve your password, or unsubscribe > from this list, visit > https://www.eclipse.org/mailman/listinfo/sumo-user >
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