Project Meeting 2016.09.08 - bellevuewa/BKRCast GitHub Wiki

Model Development Update

    1. PSRC provided latest model setup, including all inputs minus employment data
    • We have successfully run it on our end
    1. We're working on revising all existing inputs to use BKR's new zones and networks
    • We developed a crosswalk from PSRC zones to BKR zones based on polygon area
    • We've updated all trip matrices, popsyn files, the parcel file and are working on the networks
    • Ran into an issue with headways since the transit networks are a little different
    1. We've written the zone-based population sampling procedure
    • Written in Python / pandas
    • Reads PSRC hdf5 popsyn file and a TAZ sample rate file and writes a new popsyn file
    • Tested with PSRC
    1. Added new paid ride share mode to Daysim
    • Added to trip and tour mode choice models under the HOV nest for now
    • Will updated nesting diagram and share with team
    • Utility = constant + HOV2 generalized cost (time, toll, auto operating cost * distance) + cost per mile + fixed cost + person age constants
    • Tested with PSRC
    • Will look into 2014 survey data for trips in order to calculate calibration target mode shares
  • Bellevue staffs are working on updating the zone and network attributes for the PM peak period such as parking cost, TAZ terminal time, link capacities, etc. Shuming requested RSG to provide a complete list of data that are needed before model calibration.
  • Highway and transit networks for other time periods are being developed.
  • PSRC updated the allstreets network and shortest paths file and shared with RSG

Documentation Sharing

  • For other projects, we're using GitHub for software and script management, and also documentation and project management
  • PSRC also using it for SoundCast
  • Hu using OneNotes for informal documentation
  • We agreed to use GitHub and Hu can continue to use OneNotes for his documentation
  • I will populate it with meeting notes, the scope, etc. to help get it started
  • Project team to sign-up and I'll you to project (and also Daysim) so you can follow along and edit as needed

Employment Data

  • PSRC's model run with LEHD employment data looks promising; Stefan working on the comparison
  • Shuming reviewed the RCW and found a different section that seemed to suggest that agencies other than ESD could provide the data to contractors for business purposes through a contract with OSD.
  • Shuming asked the PSRC and Redmond attorneys to review
  • We're waiting on their response; Stefan to check with Mark; Patrick on vacation