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Re: [sumo-user] Confusion about new features in RouteSampler tool
Hello Jane,
you may have been using counting data with multiple intervals. This is only supported since today (3ca73714feb49736d47dedc127e3cb996315d7ba) so you may want to upgrade. (i.e. by downloading the latest build tomorrow at https://sumo.dlr.de/docs/Downloads.php#sumo_-_latest_development_version)

regards,
Jakob

Am Di., 10. März 2020 um 08:17 Uhr schrieb Jakob Erdmann <namdre.sumo@xxxxxxxxx>:
Try running with option --optimize full
if that still creates underflow it means that the set of routes you are using does not allow to fulfill all constraints and you need to add more candidate routes.

regards,
Jakob

Am Di., 10. März 2020 um 05:44 Uhr schrieb janehuang212 <huangtingting212@xxxxxxxxx>:
Hi,

I've been creating the demand for my simulation using turn count data (11
intersections on 1 corridor). I tried the new RouteSampler tool and got this
output:

`Wrote 572 routes (167 distinct) achieving total count 11244 at 588
locations. GEH<5 for 99.32%
Warning: underflow locations: count 463, min 1.00 (('749736413#1.127',
'-598977856#0')), max 54.00 (('697666085#15.103', '696962877#0')), mean 7.67
Q1 2.00, median 4.00, Q3 11.00 (total 3553)`

As my understanding, it returns 572 routes I can use but not the exact 14797
vehicles I need. I checked the output file, which only have 572 vehicles
with those routes assigned. It doesn't reflect the true volume.

Then I tried the new features of different output style. But even I set to
output flow file (tried both number and probability), the output file still
contains a very small amount of flow objects, and the number in those flow
objects sum up to less than 1k, which is way smaller the true volume (over
14k).

Any ideas about the routeSampler output? Is there any further step beyond
the output route file to run the simulation? How can I get the exact number
of vehicles? Thank you in advance.

Regards,
Jane



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