chapter 8 more on transportation
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Chapter 8 More on Transportation. Lecture #19 HNRT 228 Spring 2014 Energy and the Environment Adapted from University of Wisconsin at Green Bay and George Mason University, Engineering (Lakshmanan). Remember Overview of Chapter 8. Transportation Power and Energy - PowerPoint PPT PresentationTRANSCRIPT
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Chapter 8More on Transportation
Lecture #19HNRT 228 Spring 2014Energy and the EnvironmentAdapted from University of Wisconsin at Green Bay and George Mason University, Engineering (Lakshmanan)
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Remember Overview of Chapter 8
• Transportation– Power and Energy
Batteries, flywheels, hybrids, hydrogen, alcohol
– Traffic safety– The Automobile– Mass Transportation
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What is the work output of a heat engine whose thermal energy input is 400 J and whose exhaust is 300 J?
A 100 JB 200 J C 300 J D 400 J E 700 J
Work output = Energy Input – Exhaust (or waste)Work output = 400 – 300 = 100 J
iClicker Question
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iClicker QuestionYou have a heat engine whose thermal energy input is 400 J and whose exhaust is 300 J, what is the efficiency of this heat engine?
A 175%B 75%C 50%D 33%E 25%
Efficiency = work output / energy input = 100 / 400 = 25%
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During each cycle of its operation, a certain heat engine does 40 joules of work while exhausting 160 joules of thermal energy to the environment. The energy efficiency of this heat engine is
A 20%B 25% C 75% D 80% E None of the above.
Energy efficiency = Work output / Energy input= 40 J / (40 J + 160 J)= 40 J / 200 J= 20%
Please do not forget that the energy input = work output + exhaust [because of the conservation of energy]
iClicker Question
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A 2000 N car travels 50 m along a level road, powered by a drive force of 1000 N. The work done by the drive force is
A 5000 J B 1000 JC 2000 JD 50,000 JE 10,000 J
W = F x d = (1000 N) x (50 m) = 50,000 J
iClicker Question
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iClicker Question
• What does HEV stand for?– A High Efficiency Vehicle– B Heavy Economy Vehicle– C Hybrid Electric Vehicle– D High-voltage Electric Vehicle– E High Energy Vehicle
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iClicker Question
• Which of the following does not increase fuel efficiency?– A Properly inflated tires– B Proper oil used– C Weight of cargo– D Driving faster– E Lighter weight vehicle
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iClicker Question
• What does CAFE stand for?– A Combined Average Fuel Economy– B Corporate Average Fuel Economy– C Composite Average Fuel Economy– D Calculated Average Fuel Estimate– E Corporate Average Fuel Estimate
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Transportation Time Through the Centuries
1700 1800 1900 2000
Travel across Atlantic
Weeks Weeks Days Hours
Travel across U.S. Months Months Days Hours
Communication across Atlantic
Weeks Weeks “Instant”
“Instant”
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Inventions 1800-1900
• Steamship, 1807• Telegraph 1837• Automobile 1884• Bicycle 1885• Camera (film) 1888• Dynamite 1866• Dynamo 1871• Elevator, 1852• Electric Iron 1882
• Electric Motor 1837• Phonograph 1877• Typewriter 1867• Welding 1877• Sewing Machine
1846• Light Bulb 1879• Telephone 1876• Blast Furnace 1856• Electric Stove 1896
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Overcoming limitations
• Limitations of Space– Distance
• Limitations of Time– Food Preservation – Communications– Lighting– Rapid Production– Growth of Leisure
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Lighting in Early 1800's
• Coal + Heat => Coking • Coking, originally developed on a large
scale for steel making, gives off – Liquid Fuels
– Gases • Coking gases lead to piped gas Lamps.
– Demand for gas soon leads to a gas industry in its own right
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Lighting into the 1900s
• 1830 Whale Oil– Except in cities, America too dispersed
for piped gas. Need for portable high-quality fuel answered by whale oil.
• 1860 Kerosene Lamp– Kerosene developed as a substitute for
increasingly scarce whale oil. • 1876 Electric Light • 1920 Bulb-blowing Machinery
– Brought light bulbs down in cost from dollars to pennies. One of the oldest unchanged mass-production devices.
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Social Impact of Lighting
• Community life– Safer to go out at night– Places to go
theaters, social gatherings, etc.• More Effective Use of Leisure Time
– Easier to Read– Adult Education for Working Classes
• Demand for more Leisure Time• Loss of ability to view night sky
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The Role of Communications
• You can’t have skyscrapers without telephones
• Mail delivery financed transportation technology– Humans, humans on horses, horse drawn
carriages– Railroads, 19th Century– Air Travel, 20th Century
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Effects of Overcoming Space and Time
• Faster transportation leads to– More Leisure Time– More Effective Use of Leisure– More Experiences
• Space = Time if you have to move slowly– Railroad (Bulk Transport)– Personal Transportation– Air (Personal and Cargo)
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Transportation Using Canals
• Early 1800's Canals in England• 1825 Erie Canal: Access to Great
Lakes and West• 1856 Soo Canals: Iron to feed U.S.
steel industry
• The age of canals was short and canals don't look very impressive on the map, but they were a critical link in transportation history
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Transportation by Railroad
• 1800 Prototypes in Mines• 1829 Manchester-Liverpool, England• 1835 1000 Miles in US• 1840 3000 Miles in US• 1860 30,000 Miles in US• 1869 Transcontinental
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Effects of the Railroad
• Opening of Markets• Rise of Consumer Goods• Exploitation of European Colonies
-but- – Led to Third World (especially India)
Rail Systems
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Travel Time in the USA, 1800
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Travel time in the USA, 1830
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Travel time in the USA, 1857
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iClicker Question
• In 1800 what was the average time to go from New York to Chicago?– A 1 day– B 1 week– C 2 weeks– D 3 weeks– E over 4 weeks
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iClicker Question
• In 1857 what was the average time to go from New York to Chicago?– A 1 day– B 2 days– C 5 days– D 7 days– E 2 weeks
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iClicker Question
• What was the major transportation change that lowered the time taken to go from New York to Chicago between 1800 and 1857?– A the development of canals– B the invention of the wheel– C the horse drawn carriage– D the automobile– E the railroad
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Where the Rails Met
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Union Pacific Cut
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The Rival Routes
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What Happened to the Rails
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Not Far Away…
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Travel times in the USA, 1930
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Effects of Overcoming Space/Distance
• Manufacturer – Access to Raw Materials
• Seller– Access to Markets
• Consumer– Access to Goods
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Urban Sprawl
• Steamboat suburbs, 1830’s• Railroad suburbs by 1850’s• “Commuter“ - 1865• Planned suburbs, late 1800’s• Streetcars and Interurban railroads
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After World War II, there was an enormous spread of suburban growth. The sequence of growth was one of radial expansion along urban expressways, followed by a filling-in of the areas between them. Freeways and beltways fostered the development of suburban centers that competed with the central business district as places of employment and locations for commercial, financial, and professional services.
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During the mid-1800’s, urban growth spread along the radial routes of the early streetcars. Residential growth spread northward along Lake Michigan and to the northwest. The lines of urban expansion set the initial structure for the development of metropolitan Chicago.
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The introduction of the electric streetcar reinforced the radial pattern of growth for the city. By 1900, the radial patterns were less pronounced as a result of residential growth in the interstitial areas.
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Wisconsin Interurban Railroads
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Midwest Interurban Railroads
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Interurban Rail, Los Angeles
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Los Angeles Streetcar Lines
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Los Angeles doesn’t sprawl because it has freeways
--Los Angeles built freeways because it
sprawls
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iClicker Question
• Urban sprawl began after World War II.– A True– B False
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iClicker Question
• The automobile was the major cause of urban sprawl.– A True– B False
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The Downside of Light Rail
• Lines were very unprofitable• Owners invested in real estate• Sometimes built amusement parks at
the end of the line• Lines frequently serviced owners’
developments and bypassed others
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If You Think Cars Pollute, Consider Horses
• New York City generated thousands of tons of horse manure a day
• Horses often cruelly overworked• 15,000 horses a year died on the
streets of New York each year• Many were just abandoned
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Roads• 1790: Nicolas Cugnot, prototype steam
carriage• 1800’s: Thomas Telford
– Old-style roads damaged by wheels
– Well-graded roads damaged by horses’ hooves
– By 1830’s, Britain had road system better than the Roman Empire
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More on Roads
• Telford advocated steam carriages to reduce wear on roads
• Prototypes actually ran in 1830’s• Stiff opposition from stagecoach
operators, who held mail contracts• Stagecoach operators eventually
eclipsed by railroads• Delayed advent of auto by half
century
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Personal Transportation
• Bicycle: toy for rich in 1830’s• Fully modern design by 1880’s• First true personal transportation
– Not bound by streetcar routes
– Doesn’t need to be fed• Pioneered mass production
technology and metallurgy for automobile
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Another Technological Spiral
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George B. Selden“Inventor” of the Automobile
• Foresaw mechanized transport coming• Took out a patent in 1879 on a largely
imaginary “road engine”• Delayed issuance of the patent for 16
years (1895)• Collected royalties for 17 years despite
doing nothing for the technology• Selden’s gimmick led to reforms in
patenting
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1883 Stationary Gas
Engine
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Early Motorcycle, 1885
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1889 Daimler Auto
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1902 Daimler Roadster
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Mercedes Jellinek
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iClicker Question
• Daimler invented the automobile.– A True– B False
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World War I• Railroads insufficient for Army’s
needs• Army turned to truck convoys• Civilians found convoy routes
featured innovations– Route Markings– Regular Maintenance– Snow Removal
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Pershing’s Map, 1922
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The Interstate Highway System
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World War II: The First High-Tech War
First war whose outcome depended critically on simultaneous technological advances
RadarComputersMissiles Jet AircraftNuclear Weapons
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Post-War Political Changes
• Military-Industrial Complex • Cold-War
Post-War Lifestyle Changes
• Growth of Suburbs • Professionalization
– GI Bill – Growth of Universities
Overtraining?• Rise of Materialism • Erosion of Family?
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Much of Today's "High Tech" is an improvement on older "Low Tech.“
-------------------------------------------In many ways, the "Low Tech" advance
was the real revolution
•Freeway vs. Railroad •Light Bulb vs. Gas Lamp •Internal Combustion or Electric Motor
vs. Steam •Automobile vs. Bicycle
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The Rising Need for Mass Transportation
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Billion People5
Industrial
4 Devloping
3
2
1
0 1950 1975 1995 2030
Urban Population in Industrial & Developing
Regions, Selected Years
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Rate and Scale of Population Growth in Selected Industrial Cities, 1875-1900, and Developing Cities, 1975-2000
City
Annual Population Growth
(percent)
Population Added
(million)
Industrial Cities (1875-1900) Chicago 6.0 1.3 New York 3.3 2.3 Tokyo 2.6 0.7 London 1.7 2.2 Paris 1.6 1.1 Developing Cities (1975-2000) Lagos 5.8 10.2 Bombay 4.0 11.2 São Paolo 2.3 7.7 Mexico City 1.9 6.9 Shanghai 0.9 2.7
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Trends Affecting Transportation
A. Economics and Society Concentration & Dispersal
B. Rapid Urbanization & Explosion of Motorization
C. Changing Nature of Travel
D. Problems of Auto-dependent World Congestion
Pollution Add to Global Climate Change Traffic Accidents Other Social Costs
E. Implications for Mass Transportation
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0
500
1,000
1,500
2,000
2,500
1960 1970 1980 1990 2000 2010
use of automobiles*
total population
urban population
motor vehicle fleet
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Road Supply as a Percentage of Urbanized Areas
City Road Space (%)
Developing Countries Kolkata (India) 6.4 Shanghai (China) 7.4 Bangkok (Thailand) 11.4 Seoul (S. Korea) 20.0 Delhi (India) 21.0 São Paulo (Brazil) 21.0
Developed Countries New York (US) 22.0 London (UK) 23.0 Tokyo (Japan) 24.0 Paris (France) 25.0
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Global Car Ownership, 1993
Region Cars/1000 pop
South Asia 3Africa 14East Asia & Pacific 29Middle East 45Latin America & Caribbean 68Central & Eastern Europe 72OECD (excluding the US) 366US 561
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Country GNP/capita(US$)
Veh/1000pop
Private motorized vehicles(%)
MTW Cars TotalJapan 34630 640 20 58 78US 24780 740 2 88 90Germany 23980 570 9 89 98France 23420 520 10 87 97UK 18340 410 3 86 89Australia 18000 610 3 76 79S. Korea 8260 206 24 33 57Brazil 4400 190 10 82 92Malaysia 3140 340 56 34 90Thailand 2140 190 66 16 82The Philippines 950 32 26 28 54Indonesia 810 58 69 16 84Sri Lanka 600 50 60 13 73China 530 21 40 24 64India 320 30 67 14 81Vietnam 210 27 91 9 100
Global Vehicle Ownership, Selected Countries
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0 20 40 60 80 100
Ouagadougou
Hanoi
Bamako
Yaounde
Sao Paulo
Douala
Caracas
Lagos
Dakar
Pretoria
Buenos Aires
Mexico city
Cairo
Seoul
Colombo
Santiago
Abdijan
Rio
Bouake
Beijing
Cit
y
% of Daily Trips
PublicPrivate
Daily Motorized Trips by Public & Private Transport, Selected Cities in Developing Countries
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Trip Purpose %
City (country)
Work School WorkandSchool
Other
Alger (Algeria) 25 50 75 25Bangkok(Thailand)
34 18 52 48
Kolkata (India) 44 29 73 28Delhi (India) 46 3 77 25Hanoi (Vietnam) 45 19 64 36Jakarta (Indonesia) 39 20 59 41Santiago (Chile) 36 32 68 32São Paulo (Brazil) 41 34 75 25
Trip Purpose, Selected Cities
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Mode Door-to-door tavel time (min)
(including transfers)Train 93Subway 77Bus 56Minibus1 37Auto 28Taxi2 26Motorcycle 25Bike 23Foot 15(1) illegal paratransit (2) individual use onlysource: CMSP, 1998
Door to Door Travel Times, all Modes, São Paulo, 1997
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Travel Times (min)
City (Country)Bus Car Ratio
bus/carAlger (Algeria), 1990 56 30 1.9Caracas (Venezuela), 1982 54 36 1.5Mexico City (Mexico), 1994 50 35 1.4São Paulo (Brazil), 1997 56 28 2
Car and Bus Travel Times
(a) door-to-door travel times, average for all trips
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Country Fatalities/year
Fatalities/10,000 veh
Fatalities/100,000 pop
Developed US, 1995 41,798 3 16 France, 1984 11,685 6 21 Germany, 1984 10,199 4 16 Japan, 1984 9,262 2 8Developing India, 1996 69,800 21 8 China, 1994 66,322 82 6 Brazil, 1995 27,886 11 17 S. Korea, 1995 10,323 12 23 S. Africa, 1992 10,142 18 32 Nigeria, 1980 8,936 141 13 Thailand, 1992 8,184 9 14 Poland, 992 6,946 6 18 Mexico, 1994 5,115 4 5 Bagladesh, 1992 2,317 61 2 Czech Republic,1997
1,600 4 15
Traffic Fatalities and Rates, Selected Countries
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Region Pedestrian Fatalities(% of total)
Europe/ US 20Latin America 60Africa 45Middle East 51Asia 42
Pedestrian Fatalities as a Percentage of Total Traffic Fatalities, Several Regions
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~ The Horse Car Era (1840-90)
~ The Electric Street Car (1890 – 1920)
~ Interurban & Suburban Railroads (1900-1930)
~ Expressways & Beltways (1950 + )
Transportation History Summary
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Post World War II Transit
~ The Interstate Program
~ Home Mortgage Subsidy Program
~ The G. I. Bill
~ The Parking Policies
~ Increasing Female Labor Force Participation
~ The Decline of Transit
~ Public Support of Transit
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Five major tends in public transit ridership are evident since 1900. A period of initial growth between 1890-1920, followed by a period of fluctuation between 1920-1939 during which an initial growth in ridership gave way to a decline during the Great Depression years. This loss in ridership was offset by dramatic growth during the war years 1940-1945. Ridership declined dramatically from 1946-1972 with the rapid suburbanization of metropolitan areas and a public preference for the automobile. The years from 1972 to the present have seen a modest increase in ridership as a result of growing awareness and support for alternatives to the automobile.
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Share of Transit Trips in Large Metropolitan Areas, All Modes (a), and Rail Modes only (b), 1993.
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Car Ownership Rate in Selected Countries, 1970-92 (number of cars per thousand persons)
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Commute to WorkRegion Driving Public Transport
percent)Walking/Cycling
United States 86.4 9.0 4.6Australia 80.4 14.5 5.1Canada 74.1 19.7 6.2Western Europe 42.8 38.8 18.4Developing Asia 38.4 35.7 25.8Wealthy Asia 20.1 59.6 20.3
Transportation Indicators in Selected Cities, by Regional Average, 1990
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A. Formal and Informal Bus and Other Services - Decline of Large Bus Operations
municipal and large by systems
fare control, investment declines, poorer service
corruption and political control
failures: Lagos State Transportation Corporation Pakistan Road Transport Corporation Central Transport Board
- Para Trasit Services
B. Urban Transit Options- Technology- Operational Form- Amenity Levels- Management Form- Costs
Public Transportation
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City Right-of-way: elevatedelv underground: u/g
at grade: a/g
Length
km
Stationspacing
km
Minimumheadway
Min:sec
Cars pertrain
Hourly designcapacity
p/h/d
Average journeyspeed
kmph
Bogata Elevated 50.0 1.0 5.00 - - -Hong Kong Tuen Mun
At grade 23.0 0.6 1.00 1/2 14,000 26
Istanbul Part u/g part a/g 24.0 1.3 1:30 3/4 28,000 28Manila Elevated 14.0 1.2 2:00 2 25,000 28Medellin Elevated 32.0 1.3 2:30 6 - -Mexico City Tren leger
Part a/g part elv 11.0 - - - - -
Rio Line 2 Part u/g part a/g 22.0 1.6 - 2 - -Tunis At grade 10.0 0.8 1:00 2 24,000 19
Characteristics of Selected Light Rail Transit Systems
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Bus Operator Performance Indicators (ranges)Public Private
Average fleet availability (%) 47-85 80-89Passengers per bus daily 1200-2200 200-2900Passengers per km operated 7.6-10.1 1.2-12.1Daily km per bus operated 160-220 170-240Staff per bus operated 5.8-13.5 1.0-3.7Load factor 0.3-0.6 0.6-0.9Profitability (revenue: cost) 0.6-1.2 0.9-3.6
Performance of Public and Private Bus Operators
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SUCCESSFUL CASE STUDIES IN PUBLIC TRANSPORTATION
Adaptive CitiesIndustrialized Countries - Portland, Oregon - San Diego, California
Developing CountriesCuritiba, BrazilMexico City
Adaptive Transit(Tailoring Transit to Serve Cities & Suburbs)
- Technology - based Solutions (Karlsruhe, Germany)
- Service Innovations (Adelaide, Australia)
- Small Vehicle & Private Services
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Portland, A Transit Metropolis
Favorable Factors
- Metropolis Governance - Farsighted Comprehensive Plan
- Prosperous & Growing CBD - Urban Growth Boundaries - Parking Policies - Proactive Station Planning Process
MAX (Metropolitan Area Extension)
- Density Considerations - Public Policy & Market Needs
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Issues and Guiding Principles in Urban Transit Planning
Three underlying objectives:
1. Plan to serve requirement of a metro region involved in globalization processes vital to economic sustainability
2. Plan Framework must aim at equitable access to all including poor (to overcome public policy regimes typically favoring private motor transport).
3. Plan must promote environmental quality and safety.
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General Principles and Guidelines
1. Mode Complementarity Principle
2. Innovations in Public Transport Mode
3. Economic and Financial Sustainability
4. Land Development and Land Use Guidance
5. Improving Personal Safety
6. Environmental Sustainability
7. Design of a Governance Structure (Institutional Capacity)
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Mode Complementarity Principle
Different Transit Modes Vary in:
• cost• speed• seating capacity• flexibility• other performance characteristics• broad ‘regimes’ where mode has advantages
over others
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Mode Complementarity Principle continued
View an urban passenger trip as an ‘intermodal’ trip coordinating modes seamlessly from point A to point B
A functional combination of ‘heavy’, ‘medium’ and ‘light’ modes
This will reduce the fragmentation of metro population into different locations with different incomes and access potentials
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Innovations in Public Transport Modes
A core mode of a multi tier metro hierarchical network of transitModes which (a) provides accessibility services to entire metroRegion and (b) is crucial in restraining the use of a private car.
Choices:
1. Underground transport or elevated system US$ 100 million/km
2. Busway Systems with a network of feeder buses, special loading platforms, business centers US$ 1-3 million/km(up to 25,000 passengers/hr/direction. Curitiba, Bogota, São Paulo)
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Economic and Financial Sustainability
Key Issues:
Bus or Paratransit (charette) Productivity
Cost Recovery and Fare System
Financing Incentives
Externality Changes (congestion, pollution, etc.)
Demand Management
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Bus Productivity a Function of:
Passenger - km traversed/day
Salary Levels
Employees/bus
5 in private Brazilian buses, 11.5 in Mumbai (India) & 28 in Accra (Ghana)
Fare setting & Income Levels
Pricing
Externality