Weekly check in 2009.11.20

Call details

• When: Friday, November 20, 2009 at 1:30pm PST/4:30pm EST

• Number: 917-388-9050

• Room: 8

• PIN: 1234

If possible, you should join #opentripplanner on freenode so we can pass relevant links, etc around during the call.

Agenda

Check-in (very brief update about what you've worked on in the past week)

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Also discussed: How to better model moving from the street network to the transit network; memory and performance concerns -- Brian is starting to work with very large street networks and had some ideas as to how we might reduce the number of edges (e.g., not having two full edge objects for each direction of a street); going the other way (trading memory for improved performance), Nick suggested that it might make sense to have multiple graphs in memory for different modes/sets of modes (i.e., #51); what to merge from Brian's graph-builder branch (the decision was to merge effectively all of it -- the OSM loader, the separate graph builder CLI app, the serialization, and the changes to the ws-ui to make it all fit together.

Minutes

Nick: talked panel about OTP; imported Portland data + multi modal tests; NYC bike routing project confirmed!

David T: improved the NYC subway GTFS, now has entrances and exits which now map more or less to route.

Brian: also spoke at conference, well received panel; started working on trip planner result visualization, got first visualized mulit-modal trips. Added graph-builder tool for configuring streets, transit, etc for building graph. Did serialization work for writing/reading graph.

Frank: been in awe of Brian (like the rest of us :D).

Josh: evaluating OTP for possible use in Philadelphia-based green transit + biking trip planner.