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Measuring Bus and Bus-Passenger Travel by Road Segment

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A transportation system is not just the sum of its parts but also how and where those parts interact with one another. Measuring the effectiveness of that interaction contributes to everything from understanding the overall system to analyzing key components at the most disaggregate level of the system possible – in this case, the segments of roadway between stops. This presentation will show how analysts at TransLink developed a new foundational dataset by combining three existing datasets: Compass travel, the road network, and our bus location data.

The emphasis will be on the FME process where data was pulled from multiple sources/types, assets/services were snapped and aligned, and the spatial relationship between assets and services were analyzed to produce the final output deliverables.

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Measuring Bus and Bus-Passenger Travel by Road Segment

  1. 1. MEASURING BUS & BUS-PASSENGER TRAVEL BY ROAD SEGMENT Graeme Brown & Susanne Bell TransLink
  2. 2. PRESENTATION AGENDA 1 2 3 4 Intro: The Big Picture Origin of The Idea Design Results Demo5 6 Other Applications/Conclusions
  3. 3. The Big Picture ● A transportation system is not just the sum of its parts but also how and where those parts interact with one another. ● Measuring the effectiveness of that interaction contributes to everything from understanding the overall system to analysing key components at the most disaggregate level of the system possible.
  4. 4. Origin of the Idea
  5. 5. Place screenshot here
  6. 6. The Frequent Transit Network (FTN) ● a network of corridors where transit service runs at least every 15 minutes ○ in both directions ○ until 9 p.m. every day ○ starting at 6 a.m. on weekdays, 7 a.m. on Saturdays, 8 a.m. on Sundays
  7. 7. The FTN was… ● Manually drawn/adjusted ● Frequencies were manually calculated ● Never compared to actual delivered service ○ Required better data ● Considered a policy piece, not relatable to other processes
  8. 8. How Could we Improve this? ● Calculate and automate the generation of the Frequent Transit Network (FTN) ● Understand the routes, service types and frequencies (etc.) that contribute Keep in mind… ● The FTN is corridor based (i.e. not route based)
  9. 9. Finding the Solution
  10. 10. What is a Corridor of Service? A corridor based service is ● Road sections of service that combine to meet FTN (or other) levels of service ● A combination of ○ multiple sections ○ multiple stops ○ multiple intersections
  11. 11. At first this seemed simple… STOPSTOP STOP TO STOP SEGMENT Route A
  12. 12. But Route interaction is more complicated… STOPSTOP STOP NODE (e.g. intersection) SECTION STOP TO STOP SEGMENT Route A RouteB
  13. 13. The Segment/Section Workspace
  14. 14. Readers Bus Routes •Incomplete/manually updated Roads (DRA) From/To •Stop to stop pairs Workspace Transit Roads Topology Builder Shortest Path Finder List Exploder Remove Duplicates Writers Segments Road stop to stop (overlapping) Segment/section Membership Sections Road node to node (non-overlapping)
  15. 15. FTN : Scheduled Segment Traversals Section/Segment Membership Scheduled Section Traversals Section frequency, span- of-service, etc. Meets FTN Criteria? Yes No
  16. 16. This is useful for other things too… ● Person-traversals (passenger volumes) ● Roadway wear and tear ● Visualizing delay ● 3D load profiles
  17. 17. The Results
  18. 18. Place screenshot here Section Number Segment Membership Route (s) Route Pattern (s) Route Frequency (s) Road name Speed Limit Segment Number Route Route Pattern Route Info (Other) Stop From Stop To
  19. 19. DEMO
  20. 20. THANK YOU! www.translink.ca

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