Transcript Climate Change Adaptation for London’s Transport System

Climate Change – Impact on
Transport Network Users
Helen Woolston
London Climate Change Partnership,
Transport for London
Transport for London
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Contents
• This presentation will cover:
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London Climate Change Partnership
Climate Change Adaptation and London’s Transport System
Updates - Key areas of work
London Climate Change Adaptation Strategy
Transport for London
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London Climate Change Partnership
The LCCP is a stakeholder group, coordinated by the Greater London
Authority, consisting of over 30 key organisations, with representation
from national, regional and local government, the Environment Agency,
UK Climate Impacts Programme, emergency services, residential and
commercial developers, transport providers, financial institutions, and the
health, utility, voluntary sectors.
LCCP Objectives:
 Raise awareness of climate risks and opportunities across all sectors
 Encourage decision makers to mainstream climate issues in formulating plans
and policies
 Commission research and develop sector specific guidance
 Increase the level of adaptation in new and existing development
 Provide simple, accessible information on climate impacts and adaptation
options
Transport for London
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London’s Warming:
The Impacts of Climate Change
on London
Climate Change and
London’s Transport Systems
Launched in 2005. Summary
& Technical Reports - Four
future impacts on London’s
Transport Systems
Launched in 2002. First step
in understanding climate
change impacts on London.
Key messages and future
climate prediction
(UKCIP02).
Tidal & river flood risk
and London Thames
Gateway
Possible consequences for
London
Infrastructure damage
and station closure by
local flooding
Possible adaptation options for London
Infrastructure damage in hot weather
Summary of climate change impacts for all
London’s stakeholder sectors
Passenger comfort on the Underground
Transport for London
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Impacts of Climate Change on Transport Systems
Wetter winters and more frequent
extreme rainfall
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Groundwater, fluvial, flash flooding
incidents
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Inundation of tracks, rails, roads
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Malfunction of signals, electricity
bulk supply points
Transport for London
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Impacts of Climate Change on Transport Systems
Higher peak temperatures, intensification of
urban heat island:
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Discomfort to train passengers and staff
Biggest heat impacts ifs tube trains stuck
in tunnels between stations
Discomfort to people in cars and vans
stuck in traffic jams
Potential for discomfort for bus and coach
passengers and staff
Greater thermal expansion of bridges and
flyovers
Melting of tarmac
Buckling of tracks, change in track
maintenance timetables
Transport for London
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Impacts of Climate Change on Transport Systems
Increasing subsidence / heave may cause:
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Broken water mains
Damage to embankments and cuttings
Increasing fluvial / tidal flow may cause:
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Increased scouring of bridge footings
Loss of roads for hours during flash floods
up to days for fluvial floods eg:
M5/M50 last year during the July floods.
M1 last year due to fears over the Elley Dam
bursting its banks
M25 in Surrey last year, A3 and Croydon
Transport for London
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London’s Warming:
The Impacts of Climate Change
on London
Climate Change and
London’s Transport Systems
Launched in 2005. Summary
& Technical Reports - Four
future impacts on London’s
Transport Systems
Launched in 2002. First step
in understanding climate
change impacts on London.
Key messages and future
climate prediction
(UKCIP02).
Tidal & river flood risk
and London Thames
Gateway
Possible consequences for
London
Infrastructure damage
and station closure by
local flooding
Possible adaptation options for London
Infrastructure damage in hot weather
Summary of climate change impacts for all
London’s stakeholder sectors
Passenger comfort on the Underground
Transport for London
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Tidal and River Flood Risk to Thames Gateway
Development
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Risk of increased tidal surge
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Whilst key elements of transport infrastructure may be designed for
resilience to climate change, rest may not
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Recommendation:
Close liaison is needed between the Environment Agency, Defra, ODPM,
the Mayor and transport planners with regards to development of the
Thames Gateway
Transport for London
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Infrastructure Damage and Station Closure Caused by
Local Flooding
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Increased frequency and intensity of summer convective storms
and winter floods
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Risk to drainage systems
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Risk to power bulk supply points
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Recommendations:
– Risk assessment and adaptation planning should involve all relevant
agencies
– Full costs should be captured including infrastructure rehabilitation
and passenger delays
– Research to assess impact of potential changes in groundwater
levels
Transport for London
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Infrastructure Damage in Hot Weather
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More common exceedences of 36 degree days
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Road repairs due to shrinkage or expansion
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Recommendations:
– Cost the potential future impact of delays, repairs and renewals on the
railways
– Quantify the effect of better maintenance and improved standards currently
being undertaken by Network Rail
– Review Network Rail’s duty to maintain the network at 1994 ‘asset condition’
– Review impacts on long term infrastructure eg bridges
– Explore Indirect impacts to understand future risk of disruption to traffic
through street works
Transport for London
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Passenger Comfort on the Underground
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Hot temperatures particularly during summer evening peak travel time
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Some underground mainline stations recorded at 11 degrees higher than
outside
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Recommendations:
– A detailed, strategic monitoring programme of temperature and humidity in the
Underground, both in stations and inside trains, is recommended
– Further research by TfL is recommended to examine the behaviour of
passengers in response to higher temperatures. This research should:
– assess passenger behaviour in response to hot weather
– establish costs and benefits of adaptation measures (eg air conditioning)
– identify potential risks and thresholds where a change in transport mode (eg a
switch from the Underground to buses) may be triggered
Transport for London
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Update - Key Areas of Work
• Drain London
• London Underground’s Tunnel Cooling Programme
• Environment Agency’s Thames Estuary 2100
Programme
Transport for London
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‘Drain London’ Project
• Multiple partners to establish network and
ownership of London’s drains for the first time
• Objectives:
– to map the layout, ownership and capacity of surface
water drains
– to assess the location, frequency, severity (and cause) of
surface water flooding in London
– to assess the capacity of the surface water drainage to
manage future increases in rainfall
– to identify current and future flood hot spots and their
causes
– to identify and prioritise solutions and determine
responsibility to deliver actions
Transport for London
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London Underground’s Cooling the Tube Project
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Addresses heat from trains now and with investment programme line
upgrades
Sources from trains (braking drive and mechanical losses
Mechanical A/c is net outputter of heat – adds to the problem in the
tunnels/stations
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Ventillation modelling
Weather Data
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Trials
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Train optimisation
Air movement
Hybrid A/c
Evaporative Cooling
Heat exchange
Transport for London
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Environment Agency’s Thames Estuary 2100
Programme
• Major research and consultation on long term flood
management plans
• Set up a stakeholder partnership with Transport for
London to identify key assets and level of protection
required
– Programme identifies flood pathways and linkages
– Identifies key areas so management and costs can be prioritised
Transport for London
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New London Climate Change Adaptation Strategy
• Statutory to produce under new GLA Act, a world first
• First consultation with GLA family till Oct 31, public
consultation in early 2009
• Hierarchy approach
– Predict
– Prevent
– Mitigate
Transport for London
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http://www.london.gov.uk/climatechangepartnership
[email protected]
Transport for London
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