urban stream rehabilitation

4. Aesthetic Evaluation of Urban 4. Aesthetic Evaluation of Urban WatercoursesWatercourses

URBAN STREAM URBAN STREAM REHABILITATIONREHABILITATION


INTRODUCTION, OBJECTIVES & IMPACTSINTRODUCTION, OBJECTIVES & IMPACTSINTRODUCTION, OBJECTIVES & IMPACTSINTRODUCTION, OBJECTIVES & IMPACTS

BENEFITS / IMPACTSBENEFITS / IMPACTSBENEFITS / IMPACTSBENEFITS / IMPACTS

CASE STUDIESCASE STUDIESCASE STUDIESCASE STUDIES

SITE MONITORINGSITE MONITORINGSITE MONITORINGSITE MONITORING

INDICATORS OF SUCCESSINDICATORS OF SUCCESSINDICATORS OF SUCCESSINDICATORS OF SUCCESS

SOCIAL APPRAISALSOCIAL APPRAISALSOCIAL APPRAISALSOCIAL APPRAISAL

AESTHETICSAESTHETICSAESTHETICSAESTHETICS

REHABILITATION TECHNIQUESREHABILITATION TECHNIQUESREHABILITATION TECHNIQUESREHABILITATION TECHNIQUES

THE URBEM FRAMEWORKTHE URBEM FRAMEWORKTHE URBEM FRAMEWORKTHE URBEM FRAMEWORK


AESTHETIC AESTHETIC EVALUATION EVALUATION

of of URBAN URBAN

WATERCOURSESWATERCOURSES


Many communities are now using river rehabilitation projects to Many communities are now using river rehabilitation projects to improve the quality of life in their neighbourhoods and cities. improve the quality of life in their neighbourhoods and cities. Landscape aesthetical evaluation has been recognized as a key Landscape aesthetical evaluation has been recognized as a key aspect in these projects. aspect in these projects. Although European policy documents encourage the inclusion of Although European policy documents encourage the inclusion of aesthetical considerations and assessments in the urban planning aesthetical considerations and assessments in the urban planning process, this has oftenprocess, this has often been found difficult to accomplish.been found difficult to accomplish.

URBEM has developed a methodology that allows decision URBEM has developed a methodology that allows decision makers and the public to evaluate the aesthetic performance of an makers and the public to evaluate the aesthetic performance of an urban river, making it possible to assess its potential for river urban river, making it possible to assess its potential for river rehabilitation. rehabilitation.

Aesthetical evaluationAesthetical evaluation


Gain a better understanding of the different dimensions and Gain a better understanding of the different dimensions and characteristics that can be improved through a river rehabilitation characteristics that can be improved through a river rehabilitation scheme:scheme:

the Riverthe River, or natural dimension , or natural dimension the Citythe City, or social dimension, or social dimensionthe Peoplethe People, or public perception dimension, or public perception dimension

Compare performances between different sites, different Compare performances between different sites, different alternatives, and different dimensions.alternatives, and different dimensions.

Choose rehabilitation projects that will best improve the quality of Choose rehabilitation projects that will best improve the quality of the urban environment. the urban environment.

Aesthetical evaluation methodology Aesthetical evaluation methodology

Allows us to…Allows us to…


Aesthetical Value Aesthetical Value of Watercoursesof Watercourses

RIVERRIVER CITYCITY

ProgressProgress

PEOPLE PEOPLE (Public Perception)(Public Perception)

A tri-dimensional approachA tri-dimensional approach



RIVERRIVER

Biological ComponentsBiological Components

River MorphologyRiver Morphology

Natural Techno-HazardsNatural Techno-Hazards

ProgressProgress

main natural features that can influence rivers aesthetics are considered

River TypologyRiver Typology



RIVERRIVER

ProgressProgress

for example

Flood VulnerabilityFlood Vulnerability

Erosion and Erosion and Landslide RiskLandslide Risk







RIVERRIVER




ProgressProgress

for example

Flood VulnerabilityFlood Vulnerability

Erosion and Erosion and Landslide RiskLandslide Risk




CITYCITY

Urban Space QualityUrban Space Quality

Activities of RiverfrontActivities of Riverfront

Cultural HeritageCultural Heritage

PollutionPollution

AccessibilityAccessibility

ProgressProgress

main issues that describe and influence the aesthetic value of a city-river landscape



ProgressProgress

PEOPLPEOPLE E

Public perception Public perception of river landscapeof river landscape

Place identityPlace identity

Restorative capacityRestorative capacity


The result – profiling aesthetical characteristicsThe result – profiling aesthetical characteristics

50,0

42,0

35,0

45,0

35,0

25,0

85,0

50,0

28,7

0,0 0,0

50,0

31,5

75,7

0,0 0,0 0,0

50,0

1,7

69,3

91,7

65,2

21,0

0,0 0,0

33,331

6866

28

5054 54

43

28

45

29

0,0

50,0 50,0

0

50

100

R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 C1 C2 C3 C4 C5 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11

PlausMIN

Score

PlausMAX

RIVER CITY PEOPLE

profiles help show how the different characteristics score and can help guide urban river rehabilitation interventions in order to maximize the aesthetic value of a city-river landscape


JARDAS Stream – Barcarena / Cacém

JJAADDRRAASS SSTTRREEAAMM

~~

PPOORRTTUUGGAALL

Example: the Jardas streamExample: the Jardas stream

More info…More info…


Jardas stream – studying the different indicators..Jardas stream – studying the different indicators..

JARDASJARDAS

Accessibilitye.g.


Jardas stream – profile of aesthetical performanceJardas stream – profile of aesthetical performance

PEOPLERIVER CITY

50,0

42,0

35,0

45,0

35,0

25,0

85,0

50,0

28,7

0,0 0,0

50,0

31,5

75,7

0,0 0,0 0,0

50,0

1,7

69,3

91,7

65,2

21,0

0,0 0,0

33,331

6866

28

5054 54

43

28

45

29

0,0

50,0 50,0

0

50

100


PlausMIN

Score

PlausMAX

Shows which indicators score poorly, point to possible areas of rehabilitation intervention, and those characteristics which most contribute to the aesthetic value of the Jardas city-river landscape


Jardas stream – profile of aesthetical performanceJardas stream – profile of aesthetical performance

PEOPLERIVER CITY

50,0

42,0

35,0

45,0

35,0

25,0

85,0

50,0

28,7

0,0 0,0

50,0

31,5

75,7

0,0 0,0 0,0

50,0

1,7

69,3

91,7

65,2

21,0

0,0 0,0

33,331

6866

28

5054 54

43

28

45

29

0,0

50,0 50,0

0

50

100


PlausMIN

Score

PlausMAX

ParkingPublic transportsWalkways

Building density Bridges

LandmarksBelvederes

Cultural HeritageDiversity activ.Attractiveness activ.Crossings by foot

Anchorage placesDensity of boats


Evaluation of urban rivers as to their aesthetical values can be Evaluation of urban rivers as to their aesthetical values can be used to guide rehabilitation interventions to make the most of used to guide rehabilitation interventions to make the most of their potential.their potential.

The methodology integrates expert assessments and public The methodology integrates expert assessments and public surveys to assess the aesthetic performance of urban rivers.surveys to assess the aesthetic performance of urban rivers.

It reveals the diversity of characteristics of each urban river and It reveals the diversity of characteristics of each urban river and the areas where maximum potential for rehabilitation can be the areas where maximum potential for rehabilitation can be achieved – in some rivers they could be more related with the achieved – in some rivers they could be more related with the social and cultural context, others with a more natural landscape.social and cultural context, others with a more natural landscape.

It is a powerful means of communicating & evaluating proposals It is a powerful means of communicating & evaluating proposals of river rehabilitation projects, as well as other interventions in of river rehabilitation projects, as well as other interventions in urban waterfronts.urban waterfronts.

Summarizing considerationsSummarizing considerations


For further informationFor further informationLink to more detailed paper…Link to more detailed paper…