Track Design for Line Speed Improvement

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The economic growth, urbanisation and the increased mobility are boosting demand worldwide for the efficient transportation of people and goods. In order to meet these demands, transport links are experiencing resurgence. This is particularly true with the rail infrastructure for passenger and freight applications.


In the US, many cities are investing in light rail to ease congestion, address climate change, and improve transportation efficiencies. In Europe, the same scenario is starting to unfold with a focus on light and heavy rail driven by the need for efficient transport links says Martin Baggot.
The renaissance in rail is a part of a wider strategy by the governments around the globe to develop sustainable transport solutions that will reduce our reliance on fossil fuels, the decrease of the impact of freight on roads and transform local communities into globally connected hubs, Martin Baggot adds.
A study had been done to improve the line speed of a section in a railroad track which has a length of 50 kilometres. The route is a twin railroad track that is joined track with a traffic that is a mixture of a conventional passenger traffic that is running at 150 kilometres per hour and a freight that runs at 100 kilometres per hour. The design would have to consider several sections of horizontal curves with sharp radii and steep vertical curves or gradients. It will also cover several stations and tunnels, including a number of bridges that are present. The line has power supply for traction through an overhead line electrification system. The new traffic flow will require traffic with a heavier axle weight to run (increasing from 20 to 25 tonnes). ...
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