a-b-street / abstreet

Transportation planning and traffic simulation software for creating cities friendlier to walking, biking, and public transit
https://a-b-street.github.io/docs/
Apache License 2.0
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Agents going to University of Washington all target same address #89

Open Ferashul opened 4 years ago

Ferashul commented 4 years ago

While playing the University District map, I noticed a rather odd pattern: Every agent going to the university seems to want to go to 3607 San Juan Road, a small university building all the way at the back of the medical center.

image

image Observe the almost invisible scrollbar on the 'People' window.

This obviously creates a rather intractable traffic jam, as every car needs to go down this same small side road before attempting to park.

dabreegster commented 4 years ago

I've seen this before too; it's one of the main reasons the udistrict map gridlocks. The trips come from https://www.psrc.org/activity-based-travel-model-soundcast. If you happen to be running from source and have downloaded the extra input data, you could go to internal dev tools > view KML > parcels.bin and find that building: parcels 25k trips is definitely wrong. I'll get in touch with the PSRC folks and see if they had special modelling for UW. Probably we'll need to post-process the data and manually distribute these trips among all buildings in the UW campus

dabreegster commented 4 years ago

From Stefan:

Funny you should ask- We are in the middle of updating our base year to 2018, which includes developing a new parcel dataset, and breaking up large parcels is on our current to-do list. We don’t represent actual buildings, just parcels. So there wont be a point for each building, but there will be more ‘parcels’ than there are now for the UW campus. Unfortunately, we will not be making this update for the 2014 data, but I’ll let you know when the new base year data is available

dabreegster commented 3 years ago

Just an update from PSRC: the 2018 Soundcast model won't be available until later this year; it's blocked on updating their long-range plan.