Streetscape Hierarchy - Brisbane City Council

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Streetscape Hierarchy
Session Outline
1.
Introduction
2.
Streetscape hierarchy content location
3.
Policy setting and comparison
4.
Key content changes
5.
Streetscape hierarchy overlay code
6.
Priority infrastructure plan (PIP)
7.
Public realm design guidance
Introduction
• Streets are a key component of Brisbane’s public domain
• Part of urban open space
• Key pedestrian connections
• Contribute to city’s subtropical character
Verges
• Contribute to the character of the street corridor
• Width & vertical elements
• Street trees frame the road and adjacent buildings
• Provide access for pedestrians to adjacent buildings and uses
• Connections between destinations
• Access to public transport
• Appearance will vary and be specific to a locality through the variety
of transitions, built forms and street trees that will characterise
different neighbourhoods
Streetscape Hierarchy Overlay
• Creates consistent footway treatments, suitable to the adjacent
land use and volume of pedestrian traffic
• Develops public footways with emphasis on pedestrian
connections, spaces for meeting and increasing shade, amenity
and visual quality
• Increases subtropical vegetation to reduce the urban heat
island effect and to reinforce Brisbane’s character as a
subtropical city
• Achieves the consistent use of a simplified, standard palette of
materials
Assessment Criteria Location
Applicable code / PSP
Section number
Streetscape hierarchy overlay
code
8.2.20
Infrastructure design planning
scheme policy
SC6.16 – Chapter 2 – 2.5
SC6.16 – Chapter 3 – 3.7 &
3.8
SC6.16 – Chapter 5
SC6.16 – Chapter 6
Planting species planning
scheme policy
SC6.24
Policy Comparison
Brisbane City Plan 2000
• Some neighbourhood plans
included limited provisions for
streetscape hierarchy
• Suburban Centre Improvement
Projects (SCIP) localities required
streetscape upgrade
• Location map for streets requiring
upgrade within both neighbourhood
plans and the Centres Detail
Design Manual
• All street sub-categories except
industrial street
Brisbane City Plan 2014
• Streetscape hierarchy overlay code
applicable citywide
• Streetscape hierarchy reflects Brisbane
City Council’s intent for streetscapes
across the city
• Overlay will continually be updated
through neighbourhood planning
processes
• SCIP areas identified in overlay as locality
street
• Citywide mapping in the Streetscape
hierarchy overlay map
• New sub-category - Industrial street
Policy Comparison
Brisbane City Plan 2000
Brisbane City Plan 2014
Streetscape hierarchy overlay
• Installation of the wildlife
movement solutions required in
some local and neighbourhood
plans
• Wildlife movement solutions locations shown
on Streetscape hierarchy overlay map
Infrastructure design PSP
• Public realm design guidance
located within the Centres
Detail Design Manual
• Public realm design guidance located within
the Infrastructure design planning scheme
policy (IDPSP)
Policy Setting
Provide sufficient space that can be designed and embellished to
accommodate:
• high levels of pedestrian movement and activity in consistent
and high-quality treatments
• large subtropical tree planting and the retention of existing
trees to make a significant contribution to shade tree cover,
amenity and city identity through a contribution to a sense of
arrival and to create landmarks
• safe movement of wildlife along a corridor
Overview of Changes
 Introduction of citywide application of the Streetscape
hierarchy—code and mapping
 Introduction of Industrial street sub-category
 Public realm guidance
 Conversion of the Centres Detail Design Manual into
Infrastructure design planning scheme policy
Streetscape Hierarchy Overlay Code
Streetscape hierarchy overlay map identifies:
 Subtropical boulevard—in centre & out of centre
 City street—major and minor
 Neighbourhood street—major and minor
 Industrial street
 Cross block link—in centre & out of centre
 Corner land dedication
 Locality street
 Laneway
Streetscape Hierarchy Overlay Code
Development requirements
• Linear land dedication - where required to ensure verges are wide enough
to support high levels of pedestrian movement &/or accommodate street
tree planting
• Verge and kerb treatments that establish a high-quality subtropical
streetscape with a strong pedestrian amenity focus and include street tree
planting, street furniture, paving and lighting
• Corner land dedication
• Cross block links (plus signage)
• Public art (limited circumstances)
Assessment Criteria
Performance outcomes
Acceptable outcomes
PO1
Development must improve pedestrian movement
and amenity by providing for verges to a width that
is appropriate to accommodate large subtropical
street tree planting and high levels of pedestrian
movement
AO1
Development ensures that a verge is provided via a linear land
dedication to create a minimum verge width as specified in Table
8.2.20.3.B and the streetscape locality advice and road corridor
design standards in the Infrastructure design planning scheme policy
PO2
Development must construct verges including
street tree planting, street furniture, paving, lighting
and verge and kerb treatments that establish a
high-quality subtropical streetscape with a strong
pedestrian amenity focus
AO2.1
Development ensures that existing street trees are retained and
protected
AO2.2
Development ensures that street tree planting, street furniture,
paving, lighting and verge and kerb treatment are designed and
constructed in compliance with the specifications of the streetscape
locality advice and road corridor design standards in the
Infrastructure design planning scheme policy
Relationship with Priority Infrastructure
Plan (PIP)
• Trunk infrastructure is considered in the PIP
• Cross block links are only infrastructure covered by Streetscape
hierarchy that is trunk infrastructure
• All other streetscape hierarchy types are considered non-trunk
infrastructure and therefore are not considered in the PIP
Public Realm Design Guidance
 Schedule 6 - SC6.16 Infrastructure Design PSP
 Chapter 2 Movement network
 Chapter 3 Road corridor design
 Chapter 5 Streetscape locality advice
 SCIPs
 Neighbourhood plan and other locations
 Chapter 6 Public art
Public Realm Design Guidance
Chapter 2 Movement network – Table 2.5.2.A
Characteristic
Function
Attribute
Primary
function and
role
Description
Infrastructure
Application
Road
hierarchy
Zone
Cycling
On verge
Description
A subtropical boulevard:
(a) is located on arterial road corridors;
(b) utilises subtropical planting to reinforce city gateways, thresholds and nodes;
(c) has subtropical vegetation, including a mix of iconic tree species which create visual
landmarks and make a significant contribution to the tree cover along the major road corridors;
(d) has active frontages abutting where they pass through centres;
(e) is not generally appropriate for passive uses such as footpath dining due to high vehicular
use;
(f) has limited pedestrian movement when outside centres.
An in centre (SB1) subtropical boulevard has
An out of centre (SB2) subtropical boulevard
a fully paved verge with subtropical planting in has a separate pavement area with
garden beds and tree grates, street furniture
subtropical trees planted in a turf strip.
and pedestrian lighting.
Arterial roads, excluding State-controlled arterial roads, and arterial roads in the City Centre.
An in centre (SB1) subtropical boulevard may be An out of centre (SB2) subtropical
in the:
boulevard may be in any zone other than
(a) Principal centre zone (Regional centre)
applicable for SB1.
precinct;
(b) Major centre zone;
(c) Neighbourhood centre zone;
(d) Specialised centre zone;
(e) District centre zone;
(f) Mixed use zone.
May be appropriate as shared path where designated on the bicycle network.
Public Realm Design Guidance
Chapter 3 Road corridor design
Design requirement
Verge width
Description
Unobstructed
pavement width
Street trees
6m
5m
3.75m
(4.25m for new roads)
Full width pavement
3.05m
Full width pavement
2.05m
Full width pavement
2.4m
All trees are a minimum
of 950mm from the
nominal face of kerb and
600mm from edges of
pavement.
1.6m x 1.6m tree grates
are used where adjacent
to the kerb.
All trees are a
minimum of 950mm
from the nominal face
of kerb and 600mm
from edges of
pavement.
1.6m x 1.6m tree
grates are used where
adjacent to the kerb.
All trees are a minimum of 750mm
from the nominal face of kerb and
600mm from edges of pavement.
1.2m x 1.6m tree grates are used
where adjacent to the kerb.
A mix of tree species is laid out in an informal manner with clusters of trees.
Medium- and small-crown trees are to be planted at 2m to 6m centres
Large-crown feature trees are to be planted at minimum 10m centres.
Second row of
trees – in tree
grate at minimum
6m centres
Garden beds –
located adjacent to
kerb
1.2m x 1.6m tree grate
Garden beds –
minimum widths
1.6m
Furniture
All furniture to be located outside of the unobstructed pavement area
1.2m x 1.6m tree grate
N/A
1.5m minimum spacing between garden beds
Maximum 10m long
Layout and length of garden beds to accommodate car parking and other kerbside
allocation
1.6m
1.2m
Public Realm Design Guidance
Chapter 5 Streetscape locality advice
Table 5.2.36.2A – Toowong SCIP Locality streetscape type and specifications
Component
Design specifications
Verge width
As existing.
Description
Paving materials
Full width pavement
Type: Exposed aggregate concrete
Supplier: Hanson or approved equivalent
Colour: ‘Blue Gold’
Tactile markers
Driveways
Furniture
Supplier: Chelmstone, Urbanstone or approved equivalent Colour: CCS 'Voodoo'
To match adjacent footpath finish.
All furniture is to be located outside of the unobstructed pavement area.
Finish: Powdercoat
Colour: Dulux ‘Metropolis Storm Pearl’ (84684) or approved equivalent
Refer to 3.7.6 Design standards for street furniture.
All tree centrelines are 750mm from the nominal face of the kerb and a minimum of
600mm from the edges of the pavement.
Streets trees include:
(a) a mix of tree species laid out in an informal manner with clusters of trees;
(b) medium and small crown trees to be planted at minimum 2m spacing, if within garden
beds, or minimum 6m spacing outside of garden beds;
(c) large crown feature trees to be planted at minimum 10m centres.
Layout:
(a) a mix of species, in a single row at the rear of kerb;
(b) to be planted as singles and in pairs or clusters.
Planting: Trees are planted in garden beds or tree grates.
Planting palette: Individual or isolated tree pits (1.6m x 1.2m minimum) are to have tree
grates installed unless otherwise approved.
Trees
Garden beds
Unobstructed pavement width
2.4m
A garden bed located adjacent to the kerb has a:
(a) 1.5m minimum spacing between garden beds;
(b) maximum length of 10m;
(c) layout and length to accommodate car parking and other kerbside allocation.
Garden bed minimum width: 1.2m
Summary
• Key component for creating standard public footway and
pedestrian connections
• Increases subtropical vegetation
• Achieves consistent use of standard palette of materials
• Design requirements included in IDPSP
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