Keyphrases
Railroad
100%
Railway
100%
Equal Pay
100%
Railway Transport
50%
Steam Locomotive
50%
Wagon
30%
Rolling Stock
30%
Road Transport
20%
Freight
20%
Steam Engine
20%
Japan
10%
High-speed Railway System
10%
Train Station
10%
Funicular
10%
Underground Railway
10%
Water Transport
10%
CO2 Emission Reduction
10%
Switzerland
10%
Electrified Railway
10%
Industrial Revolution
10%
Capital-intensive
10%
Corinth
10%
Railway Vehicle
10%
Magnetic Levitation
10%
London Underground
10%
Diesel-electric Locomotive
10%
Railway Company
10%
Germany
10%
Monorail
10%
Electrification
10%
Locomotive
10%
19th Century
10%
Railway Line
10%
Ironworks
10%
Utilization Rate
10%
Canal
10%
Diesel Engine
10%
Tie-set
10%
Locomotion
10%
Transport System
10%
Electric Power
10%
Liverpool
10%
Rubber
10%
6th Century
10%
Railway Network
10%
National Market
10%
Global Warming
10%
Rail Transport System
10%
Concrete Foundation
10%
Intercity Railway
10%
Railway Timetable
10%
Fuel Prices
10%
Road Congestion
10%
United Kingdom
10%
Ground Transport
10%
Wheeled Vehicle
10%
Traffic Level
10%
Steel Rail
10%
Great Britain
10%
Flat Surface
10%
Diesel Locomotive
10%
Slab Track
10%
Metropolitan Railway
10%
16th Century
10%
Frictional Resistance
10%
Electric Locomotive
10%
Airplane
10%
Tramway
10%
Greece
10%
Sleeper
10%
Local Time
10%
Railway Systems
10%
Signaling System
10%
Environmental Concern
10%
Land Transport
10%
Rapid Transit Systems
10%
Darlington
10%
Low Traffic
10%
Cargo
10%
Greenwich Mean Time
10%
Technological Innovation
10%
Energy Efficiency
10%
World War II
10%
Road Vehicles
10%
Rail Line
10%
Shipping Cost
10%
Major Towns
10%
Long-distance Trains
10%
Major Cities
10%
Railway Electrification System
10%
INIS
railways
100%
locomotives
42%
steam
33%
transport
28%
rail transport
23%
tracks
23%
passengers
19%
cities
19%
vehicles
19%
trains
19%
stocks
14%
rolling
14%
united kingdom
14%
comparative evaluations
9%
engines
9%
underground
9%
levels
9%
freight
9%
road transport
9%
inventions
9%
roads
9%
prices
9%
power
9%
japan
4%
water
4%
speed
4%
surfaces
4%
competition
4%
rubbers
4%
rapid transit systems
4%
wheels
4%
energy efficiency
4%
metals
4%
ballasts
4%
monorails
4%
global warming
4%
operation
4%
men
4%
great britain
4%
capital
4%
diesel engines
4%
market
4%
steels
4%
cargo
4%
ships
4%
emission
4%
cost
4%
airplanes
4%
foundations
4%
germany
4%
variations
4%
fuels
4%
carbon dioxide
4%
animals
4%
switzerland
4%
land transport
4%
horses
4%
greece
4%
slabs
4%
electric power
4%
standardization
4%
Earth and Planetary Sciences
Rail Transport
100%
United Kingdom
40%
Diesel
40%
Transport System
40%
Road Transport
40%
Japan
20%
Transferring
20%
Rapid Transit Systems
20%
Carbon Dioxide Emission
20%
Global Warming
20%
Railway Network
20%
Diesel Engine
20%
Switzerland
20%
Flat Surface
20%
Railway Transport
20%
Underground Railway
20%
United Kingdom
20%
High-Speed Railway
20%
Energy Efficiency
20%
Greece
20%
London
20%
Germany
20%
Economics, Econometrics and Finance
Invention Process
100%
Road Transportation
100%
Wage Structure
100%
Energy Conservation
50%
Environmental Consciousness
50%
Agricultural and Biological Sciences
Wagons
100%
Steam Engines
66%
Slabs
33%
Electric Power
33%
Sons
33%
Diesel Engine
33%
Energy Efficiency
33%
Global Warming
33%
Social Sciences
Railway
100%
Road Transportation
8%
Invention Process
8%
Transport Systems
8%
UK
8%
Germany
4%
World War II
4%
London
4%
Nineteenth Century
4%
Electric Power
4%
First World
4%
Industrialization
4%
Rail Vehicle
4%
Global Warming
4%
Greece
4%
Japan
4%
Railway Transport
4%