Disaggregate accessibility planning using OSM data and OpenTripPlanner - State of the Map 2013
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Disaggregate accessibility planning using OSM data and OpenTripPlanner State of the Map 2013 6 September 2013, Birmingham Andrew Byrd Developer, OpenTripPlanner and OTP Analyst Principal at Conveyal PhD candidate (town planning) at Université de Paris-Est email: [email protected]
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*** Presented by Andrew Byrd at State of the Map 2013 *** Full schedule available at http://wiki.openstreetmap.org/wiki/State_Of_The_Map_2013 OpenTripPlanner (OTP) is an open source multi-modal journey planner with a particular emphasis on public transport and bicycle itineraries. OTP combines OpenStreetMap data with open timetable feeds in the GTFS format to create its representation of a transportation network. The OpenTripPlanner Analyst (OTPA) modules build upon the core journey planner to provide travel time mapping and accessibility visualisation for use in town planning, transport planning, and public consultations. OpenStreetMap data allows OTPA to consider pedestrian and bicycleconnectivity at high spatial resolution, sidestepping the problematic spatial aggregation of data. Our presentation will cover the use of OpenStreetMap data in OTP Analyst studies, the advantages of working with OSM data, and direct participation in the OSM community by local transportation authorities.
Transcript of Disaggregate accessibility planning using OSM data and OpenTripPlanner - State of the Map 2013
Disaggregate accessibility planning using OSM data and OpenTripPlanner
State of the Map 2013 6 September 2013, Birmingham
Andrew ByrdDeveloper, OpenTripPlanner and OTP AnalystPrincipal at ConveyalPhD candidate (town planning) at Université de Paris-Est
email: [email protected]
OpenTripPlanner (OTP)
- Fully multi-modal journey planner system (e.g. bicycle transfers)- Public transport focus- User preferences (speed, bicycle safety, hills...)- Open source license (GNU LGPL)
Consumes open data, using open standards - OpenStreetMap (OSM)- General Transit Feed Specification (GTFS)
Mature product- At feature freeze for version 1.0- Production deployments in many countries, backing mobile apps
Origins of the Project
Portland (Oregon, USA) transport authority TriMet- originators of the GTFS format in 2005- replacing costly commercial license renewal- product control and ownership by public agency- initial development organized by NYC non-profit OpenPlans
Development now coordinated by Conveyal- Open data-driven transportation planning consultancy- Former OP transportation technology team (Kevin, David, and I)- Open data driven transportation planning consultancy- Partnership with Integrated Transport Planning (Birmingham/Nottingham/MK)
TriMet fully migrated to FOSS code (ride.trimet.org)“Movable Code” transposable to any city with OSM and GTFS coverage (or equivalent: Netex, TransXChange, etc.)
OpenTripPlanner Analyst (OTPA)
Non-passenger-facing applications of the journey planning engine to problems in:
- town planning- infrastructure evaluation- service modification- social research
Uses OTP trip planning engine for one-to-many or many-to-many searches.
Retains, visualizes, and aggregates information usually “thrown away” in point to point searches.
All paths explored for a single point-to-point search
OpenTripPlanner Analyst (OTPA)
A. OTPA Web Services- pseudo-Mercator web map tiles or WMS- interactive exploration of travel time contours
B. Batch Analyst- accessibility indicator calculation- percentage of employment basin reachable from each home- number of inhabitants able to reach each location in M minutes- regional summary information and visualization
Travel Time Visualization: minutes from Portland Airportgrey 0-15 min, green 15-30 min, blue 30-45 min, yellow 45-60 min
OpenTripPlanner Analyst (OTPA)
Combining OSM street data with GTFS feeds allows a high level of spatial and temporal detail.
Infrastructure impact exploration: Paris regional line 15blue ~15 min, green ~45 min
Potential Path Area (time geography)
Time remaining to perform an activity given O/D and time constraints.
Potential Path Area (time geography)
Visualization of equidistant zone
Service modification analysis (accessible population within 60 minutes)grey=2-4M, blue=4-6M, red=6-8M, yellow=8-10M
Post hurricane Sandy accessibility (East River tunnels flooded):Jamaica as “central” as midtown Manhattan
Percentage decrease in accessible populationgrey=30% red=60% yellow=90%
Open data is a window into the spatio-temporal structure of cities.
OTP Analyst reveals latent characteristics of these data sets, enabling evidence-driven decision making and immediate
feedback for debate.
Links
code: http://github.com/openplans/OpenTripPlanner
OpenTripPlanner Analyst demo: http://gp15.fr
OTP Analyst information: http://opentripplanner.com/2012/07/
Portland Regional Multi-modal trip planner: http://ride.trimet.org
Netherlands / Belgium real-time routing: http://www.opentripplanner.nl
Andrew Byrd email: [email protected]
