urban design philosophies and prt
DESCRIPTION
Overview of potential functions of Personalised Rapid Transit (PRT) systems and how PRT can be integrated into existing urban areas.TRANSCRIPT
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Urban Design Philosophies and PRT
Richard CrappsleyColin Buchanan22 August 2008
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Influencing factorsFactors that influence design:
1. Type of system (e.g. ULTra, Vectus, Skyweb Express)
2. Anticipated role and function of PRT3. Context
• Urban form• Land uses• Townscape• Character• Heritage• Landscape• Environmental considerations
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Function of PRT
• Functions:– Park & Ride– Campus, business park– Commercial / freight movement– Edge of town expansion– Town centre network– Local network, connecting into PT hubs and
network– Intra-suburban / semi-rural hinterland
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Park & Ride
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Town centre
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Edge of town
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Local networks
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Intra-suburban / semi-rural
Supermarket
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PRT networks
Complete intra- urban networks
Fast inter-urban networks?
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PRT timeline?Park & Ride
Campus, business park
Commercial / freight movement
Local network
Town centre / district network
Edge of town expansion
Intra-suburban / semi-rural
Complete intra-urban network
Heathrow 2009
Daventry 2012?
???
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Design considerations
• System considerations:– Safety – Security – Accessibility – Sustainability – Aesthetics
• Contextual factors• Human behaviour
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Contextual factors
• Visual intrusion• Noise• Severance• Spatial requirements• Historic townscape / sensitive landscape
Partially address through:• Different guideway arrangements
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Guideway sections
At-grade Elevated
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Guideway sectionsIn cutting
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Guideway sectionsIn tunnel
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Guideway SectionsPartial elevation
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Guideway sectionsEmbankment
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Stations
• Station arrangements:– At-grade– Below ground– Elevated– In building
• Potential for ‘high street spur’?
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High Street Stations
Main PRT network
Slower at-grade spur serving high street
Bus-stop / taxi rank style stops
Pedestrian crossing points
Pedestrianised high street
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Replacement of ModesGrowth of Mobility in France. Distance Travelled per Day per Capita (Grubler, 1990)
10
100
1,000
10,000
100,000
1800
1850
1900
1950
2000
Met
res
TGVAirTwo-wheelerHorsesWaterwaysRailCars & BusesAll modesTrend
Waterways
Rail
Horses
Buses & Car
TGVs
Air
2 Wheelers
All modes
Rail
Buses & Car
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Replacement of Modes
• Replacing another PT mode entirely• Replacing car trips
So…• Potential to re-allocate road space• Environmental improvements from traffic
reduction
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Reallocation of road space
Bus lane
Typical urban road
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Reallocation of road spacePRT at-grade
PRT stop
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Reallocation of road spacePRT elevated
PRT stop
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Before…
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After
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Before…
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Design details
• Design details:– Form / structures– Colour– Lighting– Materials
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FormStations, guideway structure
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ColourVehicle livery Columns, guideway
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LightStations, guideway structure
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Broad Principles
1. Role / function (may be more than one) 2. Context and applicability (may vary along
route)3. Re-allocation of road space4. Attention to details