Displaying landmarks and the user’s surroundings in indoor pedestrian navigation systems

transcript

Christina Ohm, Manuel Müller, Bernd Ludwig Chair of Information ScienceBringing Together Indoor and Outdoor Mobility Solutions, Ghent, 24.09.2015

Dr. Max MustermannReferat Kommunikation & Marketing Verwaltung

Christina Ohm, Manuel Müller, Bernd LudwigChair of Information Sciencemanuel-tonio.mueller@ur.de, bernd.ludwig@ur.deBringing Together Indoor and Outdoor Mobility Solutions, Ghent, 24.09.2015

PROJECT – INDOOR PEDESTRIAN NAVIGATION

Indoor Pedestrian Navigation

MODEL indoor areas

IDENTIFY landmarks in indoor environments

DISPLAY navigation instructions

NADINE Application

Current Area: “Plärrer“.Go straight ahead to the tram stop.

Back Next

Web Interface

http://urwalking.ur.de/navi/

SYSTEM DESIGNS

Motivation

Displaying mobile maps is state of the art Map material currently used as navigation aid at the University of Regensburg

Interface simplification to minimize cognitive load enhance navigation efficiency

See e.g.: Bouwer et al. 2012; Butz et al. 2001; Puikkonen et al. 2009.

System Designs

Landmark Selection

34 participants (16 m, 18 f)

mean: 22.5 years (range: 19-30)

EVALUATION

Test Route

Navigation Scenes

Participants and Variables

Test users: 64 (33 male)Mean Age: 24.02 years

SD = 7.9 range: 11-64 years

Between subject design 35 map 29 graph

Dependent variable: Navigation Time

RESULTS

Results

Overall Navigation Time• p = 0.034 • r = 0.27

Navigation Problems

Users who needed helpMap: 16Graph: 16

Navigation Problems

Results – Subgroups

“Help” subgroup

• No difference between UI designs

“No-Help“ subgroup

• Mean map > Mean graph

• p = 0.0302 (r = 0.38)

Results – Navigation Steps

“No-Help“ subgroup• Map: 19• Graph: 13

Navigation Steps• 23 steps• p = 0.043

Means• map: 17.3 sec• graph: 15.3 sec

Results – Navigation Step 15

Results – Sense of Direction

Low SoD (37)

• No difference

High SoD (27)

• Mean map (15): 7.06 min

• Mean graph (12): 6.34 min

• p = 0.02 (r = 0.446)

SoD questionnaire: Münzer & Hölscher 2011In brackets: number of participants

Results – Questionnaire

“There were enough salient objects displayed so that I could orient myself.”

5.5 out of 7

“The chosen salient objects (like doors or stairs) were helpful. ”

6.0 out of 7

“I felt comfortable while navigating.” 5.8 out of 7

Results – Questionnaire

“The directional arrows helped me while navigating.”

5.4 out of 7

“The text instruction helped me while navigating.”

6.0 out of 7

“The depiction of the surroundings helped me while navigating.“

5.0 out of 7

CONCLUSION

Conclusion

Participants with a high sense of direction profit from abstract interface designs

A lot of participants get lost at large areas or hallways

The chosen landmarks are very helpful

Text instructions are very important for orientation

Future Work

Does the abstract interface support elderly people?

How many landmarks should be displayed?

Which additional (map) information could be beneficial?

How can participants can be supported if they lost their way?

References

A. Bouwer, F. Nack, A. El Ali, Lost in navigation: evaluating amobile map app for a fair, in: Proceedings of the 14th ACM international conference on Multimodal interaction, ACM, 2012,pp. 173–180.

A. Butz, J. Baus, A. Krüger, M. Lohse, A hybrid indoor navigation system, in: Proceedings of the 6th International Conference on Intelligent User Interfaces (IUI), ACM, New York, 2001, pp.25–32.

S. Münzer, C. Hölscher, Development and validation of a selfreport measure of environmental spatial strategies, Diagnostica57 (3), 2011, pp. 111–125.

A. Puikkonen, A.-H. Sarjanoja, M. Haveri, J. Huhtala, J. Häkkilä, Towards designing better maps for indoor navigation: experiences from a case study, in: Proceedings of the 8th International Conference on Mobile and Ubiquitous Multimedia, ACM, New York, 2009, p. 16.

Thank You for Your Attention!

Christina Ohm, Manuel Müller, Bernd LudwigChair of Information Science

christina.ohm@ur.de, manuel-tonio.mueller@ur.de, bernd.ludwig@ur.de

BACKUP: Web Interface

http://urwalking.ur.de/navi/

BACKUP: Results – Selected Objects

Architecture Function Information Furniture

Selected objects per category

142 (15%) 549 (58%) 131 (14%) 131 (14%)

Selection probability in a certain category

7% 22% 7% 8%

BACKUP: Navigation Scenes

BACKUP: Results – Navigation Step 23

Displaying landmarks and the user’s surroundings in indoor pedestrian navigation systems

Healthcare