PGIS techniques

+

PGIS techniques to identify land use conflicts in Portsmouth

Hélène Draux, Cities Institute

+Scope: widening participation

Avoid lengthy meetings/focus group

Avoid/minimize promotion issues

Avoid ‘loud’ voice bias

+Aims

Assess value of vulnerable open spaces

Assess flood knowledge

Understand perception of space regarding flood risks

+Conceptual framework

School survey

Children

+Face-to-face survey:Open space users and/or Farlington Marshes users, stakeholders

45 questions

15 minutes

2 types of mapping activities

+1. Where do you live?

3. Where are the flooding areas?

2. Where do you walk? What is your favourite place?

Maps as a supporting

tool to quickly record spatial data

+Overlay:

- land use- flood zone

Overlay:- Farlington

Marshes- scenario

..supporting tool to convey information quickly

+

Good qualitative data

Includes all willing users in just 15 minutes, without excepting them to come to a focus meeting

Time consuming

Surveys only small sample, and quite short survey

Relies on the weather

:(:)

+Summer fair survey:Open space users and/or Farlington Marshes users, stakeholders

Organised by Portsmouth Climate Action Network

1 sunny day

Around 60 participants for each of the 4 activities

+Activity 1: Use of parks

Most days Weekly Monthl

y Rarely

Walking

Dog Walking

Chill out

Bird watching

+Activity 2: Flood extent

+Activity 3: Land use priority

+Activity 4: Willingness-to-pay

+ :(:)

Can reach more diverse population:FamiliesYoung peopleLess frequent park

users ..

Needs lots of people to man the activities

Relies on the fair organisers .. and weather!

+Online surveyGeneral public, open space users and/or Farlington Marshes users and stakeholders

Based on Google Maps

Aims to:

Attract all population in Portsmouth

Potentially get a bigger sample

+www.openspaces-portsmouth.org.uk

+Google Map API v3

Add markers with a click

Capture geolocalised data

Display kml layers..

Fieldwork

+

Fieldwork

layers used: points, line and polygons

+

Can reach more participants

Once launched can run without more input

Do not rely on weather

:(:)

Excludes non-internet users and potentially non-computer literate

Requires coding

Needs advertising!

+Lessons learnt

Always expect to be surprised

Online survey seems easier.. It’s not!

Cannot work the same way in private spaces (shopping centre)

+Future work

Work with a school in Portsmouth (Priory School, Southsea)

Interviews with stakeholders of the Farlington Marshes

+ Hélène Draux, Cities Institute

h.draux@londonmet.ac.uk http://www.openspaces-portsmouth.org.uk

Thanks!