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Shared Spaces for Healthy and Active Places – Can they work in Canberra?AITPM 2014 National Conference
Presented by : Peter StrangDirectorGTA Consultants [email protected]
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Shared Spaces for Healthy and Active Places – Can they work in Canberra?
Co-AuthorsPeter Strang, CTA ConsultantsBrett Maynard, GTA ConsultantsBrigette Humphrey-Robinson, GTA ConsultantsBen McHugh, Roads ACT
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Canberra as a Healthy and Active City
• High cycling participation• 22% ride during a typical week• 40% work less than 10km from home• Canberrans walk an average of 26min per day
Transport for Canberra: Transport for a Sustainable City 2012-2031
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Bunda Street Case Study
Bunda Street
Pedestrian Activity
Cyclist Activity
On-street Parking
Loading Zones
Through Traffic
Retail Precinct
CommercialUses
Bunda Street forms a key link within the Civic Cycle Loop
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Bunda Street Vision
Cater for all Cycling Abilities
Safe and Convenient
Increased Pedestrian
Activity
Day to Night Transition
Destination for all Users
Pop-up Activities and Entertainmen
t
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Design Methodology
Road User HierarchyStreet FunctionDesign VehicleCirculationLocal Area Traffic Management (Speed)Parking ProvisionSafetyIntersection Treatments
Design Decisions
Road User HierarchyNetwork ContextRoad User Interactions and ConflictsUser MovementsQuality of InfrastructureParking RequirementsServicing Requirements
Existing Considerations
Australian LegislationState GuidelinesACT Context
Austroads Guide to Traffic ManagementOther PrecedentsInternational Design
Background Review
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Australian Shared Zone
Shared Space• No legal definition• Interaction of all users with minimal guidance
Australian Road Rules (ARR):• Definition - ‘installation of Shared Zone signage’• Does not specify speed limit• Pedestrians have legal priority• Adopted in the ACT Road Rules
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Other State Guides
Speed Zones• Typically 10km/h• 20km/h examples implemented in ACT and QLD
Traffic Volumes• Significant variation
Design• Typically remove kerbs (single surface level)• Kerbs can be maintained in Brownfield sites or existing
streets (NSW)
State Max Vehicles per Hour
Max Vehicles per Day
NSW 100 1,000
VIC 200 1,000
WA - 300
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Austroads Guidance
Shared Zones:• Reduce vehicle speeds• Reduce traffic volumes• Increase pedestrian and
cyclist safety• Improve amenity with no
impact to access
Consistent with the Bunda Street Vision
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Australian Shared ZoneAngel Place, Sydney, NSW
Childers Street, City West, ACT Hunter Street Mall, Newcastle, NSW
Hargreaves Street and Bull Street, Bendigo, VIC
‘One Size Fits All’ is not necessarily appropriate for Shared Zones
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• 85% vehicle speed is 30-40km/h• Approximately 500vph – expected to reduce• Pedestrian volumes are 3X vehicle volumes• Lane width = 3.5-4.0m – reduced in design• Undesirable through route• Pedestrian pinch points
Bunda Street Context
Bunda Street meets most
(known) criteria for Shared Zone
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Key Design Considerations and Challenges
• Speed limit – safe, practical• Retro-fitting the Woonerf Principle• Parking and loading – requirement of small
business• Funding limitations – staged approach• Intersection/ entry treatments – clear visual cues
Akuna Street
Mort Street
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• Welcoming for pedestrians & cyclists of all levels• 10km/h – not well received by stakeholders• 20 km/h – potentially reduced to 10km/h in the
future• Self enforcing speed limit for compliance• Reduced fatality rate
Speed Limit
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• Horizontal and vertical deflection• Removal of line marking• Strategic tree planting• Urban design features• Reduced lane widths• Paved materials• Kerb build outs
Retro-Fitting the Woonerf Principle
ConstrainedReasonably ambiguous
Limited delineation
Competing
Priorities
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• Reduced parking spaces• Parallel parking – safer than angled for Bunda
Street• Relocation to improve sight lines• Alternate Sides• Short-term – increase efficiency• Consolidated loading
Parking
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Intersection Treatments
Bike Box
Raised Thresho
ld
Reduced Width
Planting Restricts Peds
Interaction Between
Shared Zone and Traffic
Signals
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Stage One• Intersections and desire lines• Consider high priority areas• Raised pavement areas• Horizontal deflection• Maintain major traffic control devices
Stage Two (Future)• Raised pavement along the length of Bunda
Street• Scramble crossing• Remove further traffic control devices
Staged Approach
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Additional measures:• User education• Safety campaign• Heavy vehicle access restrictionsFuture Comparative Measures:• Level of traffic control devices• Number of pedestrians, vehicles and cyclists• Number and type of crashes• Number of key pedestrian crossing locations• User opinion and retail satisfaction
Implementation and Evaluation
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