cf. city flows is a comparative visualization environment of urban bike mobility designed to help citizens casually analyze three bike-sharing systems in the context of a public exhibition space. By Till Nagel and Christopher Pietsch. Urban Complexity Lab, FH Potsdam <a>http://uclab.fh-potsdam.de/</a> This talk introduces the project and some of its goals and visualizations, and shows our design process in analyzing the data and designing the visualizations. cf. city flows was exhibited at the Streams and Traces in November 2015 in Berlin. Find more information at http://streamsandtraces.com/ More information coming soon.

1. cf. city flows
Till Nagel & Christopher Pietsch
A comparative visualization of urban bike mobility
MapTime Berlin, 28 June 2016

2. NationalGeographic
Meandering design process

3. Urban data visualizations
Our previous work

4. Touching Transport
Shanghai Metro Flow
Isoscope
LiquiData

9. Concept
General idea of the project

10. cf. city flows is a visualization of urban bike mobility.

11. cf. city flows is a visualization of urban bike mobility
designed to help citizens analyze bike-sharing system.

12. cf. city flows is a visualization of urban bike mobility
designed to help citizens casually analyze bike-sharing
systems in the context of a public exhibition space.

13. cf. city flows is a visualization environment of urban bike
mobility designed to help citizens casually analyze bike-
sharing systems in the context of a public exhibition
space. Large screens show the space of flows in bike
sharing.

14. cf. city flows is a comparative visualization environment
of urban bike mobility designed to help citizens casually
analyze three bike-sharing systems in the context of a
public exhibition space. Multiple large screens show the
space of flows in bike sharing for three selected cities:
New York, Berlin, and London.

15. cf. city flows is a comparative visualization environment
of urban bike mobility designed to help citizens casually
analyze three bike-sharing systems in the context of a
public exhibition space. Multiple large screens show the
space of flows in bike sharing for three selected cities:
New York, Berlin, and London. Bike journeys are
represented in three geospatial visualizations.

16. cf. city flows is a comparative visualization environment
of urban bike mobility designed to help citizens casually
analyze three bike-sharing systems in the context of a
public exhibition space. Multiple large screens show the
space of flows in bike sharing for three selected cities:
New York, Berlin, and London. Bike journeys are
represented in three geospatial visualizations designed to
be progressively more analytical, from animated trails
to small-multiple glyphs.

18. Bike Sharing Data
Collecting, processing, and analyzing data sets

19. London
Santander Cycles
Berlin
Call a Bike
New York
Citibike
alanlevin
RudolfSimon
Nick-D

20. London
Santander Cycles
Berlin
Call a Bike
New York
Citibike
20° C
3 June 2015
21° C 21° C
alanlevin
RudolfSimon
Nick-D

25. Raw data

26. Visual Experiments
Digging into the data

35. HERERoutingAPI

42. Design Considerations
Comparing vastly different cities

43. Basemap
TillNagel

44. Comparing cities
TheStar,gridbyRobinChubb
Eurostat

46. Scaling maps

47. Scaling data encoding

49. Three viewing modes
Different levels of spatial and temporal granularity

50. • City-wide view
• Station view
• Small-multiple view
Three viewing modes

51. City-wide view

52. Station view

53. Small-multiple view

54. Staged Analysis
From Evocative to Comparative Visualizations

57. Transitions

58. Guide through visualizations

59. Exhibition
Streams & Traces

60. Website:PhillipKortlang&ChrisMagiera

61. Productdesign:SamiraAkhavan,AndreaBiedermann,ChristianMünch

69. Observations
Feedback and Insights

70. Photo:StephanieNeumann
Comparisons as conversation starters

71. Challenging complexity

72. SüddeutscheZeitung

73. Thank you.
http://tillnagel.com – twitter: @tillnm
Dr. Till Nagel & Christopher Pietsch
Urban Complexity Lab, FH Potsdam