aurecon designing flood resilient ferry terminals: brisbane ferry terminal network
TRANSCRIPT
Designing flood resilient ferry terminals
Brisbane Ferry Terminal Network
Modelling video included3 D
Many major cities around the world rely on ferry transportation to help reduce traffic congestion during peak times and to provide a fast link across bodies of water.
Water transportation
Cities built beside waterways are particularly vulnerable to future flood events which can have a paralysing effect on a city causing:• Limited or no accessibility to parts
of the city• Delayed delivery of goods and
extra cost• Commuter time delays • Costly rebuild of infrastructure
Flood vulnerability
What can a city do to increase its flood resilience?
Brisbane cityA case study
Brisbane Flood
The January 2011 Brisbane flood destroyed thousands of residential and commercial properties and one third of the passenger ferry terminals were destroyed or severely damaged, significantly compromising the river city’s public transport network.
Oh no! 8 out of
24 ferry terminals are out of service!
AURECON ONFLOOD RESILIENCE
To protect against the paralysing effect of future floods, Brisbane City Council undertook an AUD 100 million upgrade programme for the Brisbane ferry terminal network.
Aurecon and Cox Rayner Architects won an open design competition, which attracted 65 submissions from around the world, to design new ferry terminals that would be resilient to future flood events and accessible to all.
Taking action
What is innovative about the Brisbane Ferry Terminals?
The unique flood resilient design features allow for a terminal which can be returned to operation shortly after significant flood events.
Avoids visual ‘forest of piles’
1A single upstream pier structure replaces a series of conventional guide piles and provides for a highly sculptural solution to the architecture of the terminals.
AURECON ONFLOOD RESILIENCE
Structure deflects debris
2An upstream rubber fender serves to absorb the energy of and deflect heavy objects away during a flood event to prevent damage to the terminal.
AURECON ONFLOOD RESILIENCE
Reduces negative lift
3The boat-hull inspired pontoon shape reduces negative lift on leading edge and drag force during floods, as well as minimises the risk of debris impact.
AURECON ONFLOOD RESILIENCE
Automatically releasing gangway
4A gangway provides lateral restraint during operation then utilises buoyancy to automatically detach from the shore and rotate behind the pontoon during a flood to minimise damage.
AURECON ONFLOOD RESILIENCE
Support changes function during flood
5The downstream lateral restraint changes function during a flood to provide lateral restraint to the pontoon when the gangway has disengaged from its landside support.
Operating - fender
Flood - restraint
AURECON ONFLOOD RESILIENCE
Maintains accessibility
Unique gangway floor mechanics which maintain level intermediate landings throughout the tidal range provide what is believed to be a world-first solution for achieving compliant disabled access.
6
AURECON ONFLOOD RESILIENCE
Design application
This technology to provide resilience in infrastructure can be applied to any ferry terminal network world wide.
The design ushers in a new generation of terminals which provideresilience and longevity even in the face of natural disasters.
