DETECTING BARRIERS TO MOVEMENT GEO-TRACKING VIDEO … · DETECTING BARRIERS TO MOVEMENT...

DETECTINGBARRIERSTOMOVEMENT

GEO-TRACKINGVIDEO APPROACH

SwissMobilityConference29June 2017,Lausanne

Dr.GuillaumeDrevon,LASUR,EPFLDr.OlivierKlein,LISER

Issues1

Barriertomovement

Potential barriers

Immaterialbarriers

Mentalbarriers

Placeperception

Perceptionoftimeanddistance

Placeexperience

Materialbarriers

Naturalbarriers

Hydrography

Topography

Anthropic barriers

Railways

Highways

Buldings

Traffic

Random events

Potentialbarriers

Some examples

Howtodetectbarrierstomovement?

Andusethesedetectedbarriersintheframeofinterviews?

Methodologicalissues

Toolsandmethodology2

Detectingbarrierstomovement

Weneed:

• Indicator1:individual’sroute

• Indicator2:speed

• Indicator3:eventsontheroute

Advantages:

•Routesdetecting•Spatialprecision•Speed

Inconvenients:

•Dataanalysis•Samplesize•Autonomy•Intrusiveprotocol

GPStracking

Route

• Indicator1:individual’sroute

Speed

• Indicator2:speed

+

-

We need:

• Indicator 1:individual’s route

• Indicator 2:speed

• Indicator 3:events ontheroute


On-boardvideo

"ViewFromTheRoad"(1958)- KevinLynch

Source:MITLibrairies,MITVidéoProductions

Safetydevice:

• Privateuses• Professionaluses

Source:©Roadeyescam

On-boardvideo

Sportdevice:

• Extreme sports

Source:©Contour

On-boardvideo

VideoandGPStracking

+ =

GPScamera

We need:

• Indicator 1:individual’s route

• Indicator 2:speed

• Indicator 3:events ontheroute

Ø Geo-visalisation device forinterviewsprotocol


Geovisualisationdevice

Combination:

• Audio• Video• Interactivity

Datastructure3

Datastructure

Prototype4

Interface

• Video

Interface

• Interactivemap

Ø Individuallocation

Ø Spatialvideo-line

Ø Layerscontrol

Interface

• Speedvariation

ØReductioninspeedareas

Interface

• Barriers

Ø Videosequencesassociatedwithbarriers

Interface

Conclusionsandperspectives

•Barriersdetectiontomovement•Understandingofstrategiesfacingbarriers

•Intrusiveprotocol•Shiftingtootherstransportmodes•Non-automaticanalysis

Perspectives:

•Interviewsbasedonasmallsample•Testingwithotherstransportmodes

Useothersconnectedtools:

•GoogleGlass•Eye-Tracker

Mercidevotreattention…

[email protected]@ceps.lu

DETECTING BARRIERS TO MOVEMENT GEO-TRACKING VIDEO … · DETECTING BARRIERS TO MOVEMENT...

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