Track geometry for light rail systems
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http://hdl.handle.net/2183/32307
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Track geometry for light rail systemsData
2010Cita bibliográfica
Novales, M., Orro, A., Bugarín, M. R. (2010). Track Geometry for Light Rail Systems. [Manuscrito aceptado] Transportation Research Record, 2146(1), 18–25. https://doi.org/10.3141/2146-03
Resumo
[Abstract:] As it is known, light rail systems are characterized by their running over the streets, with semi-exclusive
(or “reserved”) right of way. This fact leads to the necessity of adapting the track geometry to the one
existing in the streets, which sometimes leads to great challenges: strong vertical grades, horizontal
circular curves with very small radius without superelevation and transition curves, vertical curves with
very small minimum radius, etc.
Nevertheless, there are several good reasons for limiting track geometry parameters as far as
possible due to their influence in vehicles design, in the efforts that the vehicle will transmit to the track
(and, therefore, in maintenance work) and in operational and construction costs of light rail systems.
In the paper, limitations for different track geometry parameters will be analyzed, comparing
recommended maximum or minimum values of each parameter established by TRB (Transportation
Research Board) and by UITP (International Union of Public Transport) and explaining interesting cases,
sometimes outside those limits.
The main reasons for each limitation will be exposed, either related to vehicle design, or
passenger comfort, or any other physical condition.
Finally, the first conclusions of a research which is being developed by the authors in relation to
track geometry parameters and construction costs of light rail systems in Spain will be presented.
Palabras chave
Light-rail system
Track geometry
Vehicles design
Construction costs
TRB
Transportation Research Board
UITP
International Union of Public Transport
Track geometry
Vehicles design
Construction costs
TRB
Transportation Research Board
UITP
International Union of Public Transport
Descrición
Manuscrito aceptado para publicación (postprint) de: Novales, M., Orro, A., Bugarín, M. R. (2010). Track Geometry for Light Rail Systems. Transportation Research Record, 2146(1), 18–25. https://doi.org/10.3141/2146-03
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Atribución-NoComercial-SinDerivadas 3.0 España