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1.Overview
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Light Rail Transit (LRT), or Mass Rapid
Transit (MRT), is the wave of the future. The LRT
is smaller than the conventional electric railway in size
but with its automated traffic system it can transport
10,000 people per hour. It passes through the urban
district so it takes on the form of an elevated structure.
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2.Comparison of LRT
With Other Mass Transportation Vehicles
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Classification
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Subway (Heavy Rail Transit)
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Light Rail Transit
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Bus
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Passenger Transporting Capacity
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20,000-40,000 persons/time,
direction
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10,000-20,000 persons/time,
direction
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1000-5000 persons/time, direction
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Car (Carriage) Programming
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6 - 10 cars
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1 - 6 cars
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1 bus
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Passenger Capacity Per Car
(Carriage)
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150-160 people
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40 - 80 people
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80 people (including standing
seats)
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Operation Interval Time
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2 - 3 minutes
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30 seconds - 2 minutes
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7 - 9 minutes
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Rotation Radius
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Minimum 400m
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Minimum 40-80m
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Minimum 13m
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Hill Climbing Ability
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Maximum 2.5%
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Maximum 6-9%
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Maximum 15%
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Average Speed
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30-35km/hr
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35-40km/hr
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18.35km/hr (Seoul)
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Construction Cost
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62 billion Won/km
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40 billion Won/km
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68 billion Won/km
(4-lane road)
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3. Merits of Steel
Light Rail Transit Bridges
LRT Structure Features Requirements
It operates in an urban district so the structure
must be simple and attractive, and must be harmonized with
the environment.
Merits
 It
is easy to install and has superior aesthetic value.
It
is free from any geometric limitations, such as curved routes.
Short
construction time makes it appropriate for urban construction.
lt
is lightweight, thus preferable for weak foundations.
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Double Column
Steel Light Rail Transit Bridge
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Steel Light Rail Transit
Bridge
with Steel Cladding
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