Car Travel Commentaryfor Christchurch Energy Awareness Week, 30 March 2009.. High public costs for hospital & accident/ emergency services: city road accidents at 26 per 1000 peop
Trang 1Car Travel Commentary
for Christchurch Energy Awareness
Week, 30 March 2009
Rhys Taylor, Sustainable Living
www.sustainableliving.org.nz
Trang 2We seem to Love our Cars!
Trang 3Advantages to the Car User
Door to door transport, if parking space.
Flexibility on timing, if congestion allows.
Passengers, including the younger & older.
Inexpensive if several share car, or if only fuel cost is considered (already have car)
Large load carrying – boot, roof, trailer.
Vehicles can be mobility adapted.
Play music of choice inside.
Status - conferred by society on the user?
Trang 4Disadvantages for Society?
Fast, wide traffic routes
deter pedestrians and
cyclists; cut through
whole communities.
Ever more land for roads
and parking space is at
high cost to car owner,
taxpayer and ratepayer.
High public costs for
hospital & accident/
emergency services: city
road accidents at 26 per
1000 people per year.
Driving unhealthy – is inactivity plus the body’s stress responses.
In USA: 50% are active and fit, 25% barely active, 25% are completely
inactive! Similar in NZ?
Noise intrusion.
Trang 5Cars, cars, more cars
48million cars/year are manufactured globally
40m cars/yr discarded in USA+ Japan+ Europe
NZ has twice level of household car ownership of the
UK, near-equal to USA
Fuel demand was growing 4% a year, until 2008
Making a car requires more (embodied) energy than
the average car will use in fuel for its first 10 yrs.
Trang 6we import inefficient older cars
And waste fuel in them, then scrap them!
Trang 7Vehicle fumes hurt us!
Over 90% of toxic Carbon Monoxide (C0) in city atmosphere comes from car exhaust pipes
oxygen carried by haemoglobin around the body
in red blood cells
Nitrogen Dioxide (N02) is a brown acidic gas
from car tailpipes, and also from welding,
factories & fires 80% of N02 in city atmosphere comes from car exhausts
inflames the lining of the lungs It can reduce
resistance to lung infections
Trang 8Typical car emissions
• Exhaust nitrogen oxides
(NOx) and hydrocarbons,
• Tiny soot particles from
burnt fuels, especially
diesel, also carry irritants
and carcinogens deep
into our lungs
• Vehicle emissions may kill more city people
than local road accidents (Auckland study)
• Carbon monoxide (CO)
is toxic; and both CO and CO2 emissions are
‘greenhouse gases’
Trang 9New Zealanders Under Scrutiny
New Zealand is 4th largest producer of
greenhouse gases per capita (measured as CO2
equivalents, coming after Australia, USA and
Canada) We burn less coal per person
By 2005, NZ emissions grew 37% over 1990
levels Increasing livestock numbers is a
significant methane contributor, but a large part
of NZ increase is CO2 from growth in road freight, car ownership and higher use of cars Air travel only a small part, but it’s growing fast too
Trang 10We are in new territory for CO2 levels, beyond historical variation of ice ages and warm periods
Trang 11Can the Climate Cope?
Trang 12Global Warming is Real
Summer melting of Greenland ice sheet edges
Greater summer melt of Arctic sea ice threatens bears
Trang 13Variation in CO2 Emissions for a 10km trip
Per person, bus
Bike, walk
Trang 14Petrol Price Trend is Up
Trang 15Global Oil Demand
Trang 16What is Peak Cheap Oil?
Global oil field discovery
peaked in early 1960s
Annual finds have declined
since (Almost no ‘easy’ liquid
oil reserves left to find)
Production peaks 25 - 40 yrs
after discovery peak in each
region
90% of all conventional oil
reserve discovered globally
is now in production stage
NZ potential oil mostly
offshore, costly to access
Trang 17Supply & Demand Converging
Trang 18Where else is Oil used?
Air travel, car-making, plastics, paint, heating, PCs, pesticide, fertiliser, pharmaceuticals, etc.
Trang 19Addicted to Oil?
95% of all transportation, whether by land, air or sea,
is fuelled by oil
95% of all goods in shops involve the use of oil.
95% of all food products require oil use (figures from USA).
The world consumes approx 85 million barrels of oil a day (approx 5,500 Olympic sized swimming pools)
Compare to 1990 global oil consumption at just 66
million barrels a day
Trang 20Can we escape car dependence?
Live nearer to work?
Not be able to afford
some jobs, schools &
leisure interests?
Trang 21Driving tips to save on fuel
Combine journeys &
tasks, avoid shortest
car trips entirely
Give workmates &
friends lifts: carpool
extends vehicle life
and reduces sooty
air-pollution
Use smaller vehicles
Trang 22Driving styles and ‘mode’ choices
If you drive at 90 km/h, you save on buying 20% of the fuel you’d require going at
109 km/h, adding only 12 mins per 100km Start trips earlier, to save the money!
Accelerate and brake gently
to save 10% of fuel costs
Or, travel by coach or rail This cuts fuel use by 80% compared to making a car trip, for a solo traveler, if the public transport is well used.
Faster!
Trang 23Fuel Economy by Car Type
small
Trang 24How can technology help?
Easier car hire.
Hybrid & electric cars available
Batteries need improvement & ‘plug-in hybrid’ not yet available in NZ
Hybrid dual-power system is more complex to construct &
maintain, and heavy.
Trang 25Time-saver, or life-shortener?
Road congestion trend = up 40% from 2000 to 2020
Is it really time saving to commute by car? You can
read and chat while on a bus; get fitter when cycling or walking (& save money on gym fees); no parking cost!
Recent ‘commuter challenge’ in Christchurch showed cyclists matching car travel times into workplaces.
Trang 26Compare walking, cycle, car, bus
Car with a single traveler is least efficient use of energy per km of road travel (Air travel is worse still, per Km)
Multi-passenger cars & buses are similar to
eachother; trains are better still
Bicycle or walking are the most efficient, (so:
“My other car’s a bicycle” could be your
bumper sticker?)
Trang 27Road-space for same no of travelers:
One car each One bus full Cycles
Trang 28Buses & walking more attractive?
Faster city journeys
-simpler ticket systems
(cards), low fares for
return trips & discounts
for regular commuters
pensioners & children
Knowing when bus is
due (timetable, website,
and electronic displays)
More comfortable seats
Bus lanes & bus priority
Shelters at bus stops
Work on the bus, or
read, make friends…
Trang 29Next Steps?
Discover other ways to help the environment when mobile, stay healthy & aim to save $$ too Walk instead of gym fees!
water, cars, reducing rubbish, gardening, and shopping-
choice actions at:
www.sustainableliving.org.nz