We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Nobody downloaded yet

Rail Track Design - Essay Example

Comments (0)
The safety and efficiency in the operation of rail transport systems is dependent basically in a good rail track design. The rail track should be designed and laid out so as to ensure that practical freights and convenient travel time are attainable. The roadways should be provided with sufficient clearances, suitable cants, and practical radii on curves…
Download full paper
Rail Track Design
Read TextPreview

Extract of sample
Rail Track Design

Download file to see previous pages... It is aimed to improve the line speed over this route. Thus it is especially beneficial to identify and elaborate the key track design issues required in the redesign process. These design issues include route surveying, track components identification, curve track requirements and other factors beneficial for the railroad redesign development.
Route surveying is done to acquire necessary data for the proper placement of grades, bridges, culverts, and curves in a railroad system. The usual route surveying can be done traditionally or electronically. Traditional route surveys employ 'differential levelling, taping manually scribed data, cross sections and baseline-referenced topography'. Electronic survey on the other hand, make use of 'total station, data collector and computer technologies' for field data acquisition and manipulation. (Engineering Policy Group, "Route Surveying," par. 1, 2)
The Swiss Trolley, 'a multi-sensor measurement system incorporating real-time kinematic (RTK) GPS' has been used in the United Kingdom for precise and accurate rail track surveying. This rail track surveying system is essential in the redesign and renewal of railroads because it provides 'dense and accurate track information' which assures a 'precise description of the actual physical track'. (Glaus et al. par. 1)

Route Improvement Components
Rail track supports the train weight, tractive and braking forces, and lateral forces from guiding the wheels. Thus it is vital to choose and use rail components that are 'suitable for the proposed duty and fit the purpose'. Rail size must be selected correctly (see Figure 2); and methods of joining rails can either be Thermit (aluminium oxide) welding or 'huck' bolts together with standard fishplates. Rail-to-sleeper fastenings must provide resistance to the 'overturning force on the rail and lateral steering forces on curves' and should maintain gauges. In the United Kingdom, 'surface mainline tracks usually make use of tapered baseplates (Figure 3 & 4) to counteract these resistances. (HSE, p. 5, 11 pars. 1)

Figure 2 Common Rail Sizes and Dimensions According to BS 11: 1985.

Figure 3 Baseplate

Figure 4 Baseplate Assembly

Ballast and Drainage
In order to guarantee superior quality track, proper ballasting is crucial. According to HSE (p. 14) ballast installed in rail tracks must fulfil the following purposes:
Transferring the load to the roadway floor;
Holding the sleepers in place;
Allowing water to drain; and
Permitting the regarding of track.

It is essential for ballast to 'not crumble under load or wet conditions' and 'should bind together as a mass when laid, but ought to retain its open structure to allow drainage'. Usually the ballast size used is 28 mm single sized for high-speed tracks. Granite ballast is resistant to wear and tear thus provides durable rail track ballast. (HSE p. 15)

Curved Track
There is an increased production of forces when a rail vehicle travels around a curve; these forces boost the wear and tear on the track and amplify derailment occurrences. Thus it is essential to design curves to minimise these drawbacks. The following are therefore required for a curved track:
Maximum practical radius;
Super-elevation ...Download file to see next pagesRead More
Comments (0)
Click to create a comment
The Paddington Rail Disaster

The Paddington railway accident is regarded as the most serious accident on the British Railway system which took place at 8.11 am on October 5, 1999. The accident involved two trains which crashed two miles outside the Paddington train station at the Ladbroke Grove Junction in London, England.

9 Pages(1750 words)Essay
Track design for linespeed improvements Essay
This calls for trains which are fast and able to carry heavy loads. In line with these developments, the rails must be redesigned to carry heavy loads and guide the fast moving trains. These papers looks at different methods of redesigning the rail tracks to be able to resist increased load due to cargo weight and improve stability of the fast moving trains.
15 Pages(3750 words)Essay
Mommy Track
These laws restrict the number of hours women may work in a day or week; provide for longer meal and rest periods for women than for men; restrict or prohibit night work for women; restrict the type of work women may do and the physical location in which they may work; require additional facilities such as seats, lunchrooms, and toilet rooms for women.
4 Pages(1000 words)Essay
Track Design for Line Speed Improvement
Today's transportation is an area where the cost pressures, globalization and competition are driving the merging public and private interests, Rail agencies worldwide are facing common challenges that range from ageing infrastructure to increasing demand.
12 Pages(3000 words)Essay
This calls for trains which are fast and able to carry heavy loads. In line with these developments, the rails must be redesigned to carry heavy loads and guide the fast moving trains. These papers looks at different methods of redesigning the rail tracks to be able to resist increased load due to cargo weight and improve stability of the fast moving trains.
15 Pages(3750 words)Essay
Track design for linespeed improvements Master Essay
The route is a twin track that is joined with its traffic that is to serve a conventional passenger train running at 150 kilometres per hour and a freight train at 100 kilometres per hour seed.. The improvement is to run along the 50 kilometres track. The route has several sections of sharp radii curves and steep vertical gradients.
13 Pages(3250 words)Essay
Track design for linespeed improvements
In diverging routes, continuities create a need for speed restrictions. In obtaining a higher diverging speed, it is necessary to completely replace an existing turnout with a new one. However, new designs are more costly. The main purpose of the study is to redesign a curve of transition between a curve and a straight track.
13 Pages(3250 words)Research Paper
The impact on proposed electrofication in the UK to railway infrastructure design
g Report was published, 5000 miles of track and 2000 stations were closed, in anticipation of savings and bringing the rail system out of deficit (www.bbc.co.uk). The actual savings achieved were only £30 million, while the overall losses were in excess of £100 million.
4 Pages(1000 words)Essay
Paper entitled : Inductive Power Transfer (IPT) Pickup Design Using Switch Mode Controller Methods for an Electric Toy Car
In the latter, the proportion of energy received becomes critical only if it is too low for the signal to be distinguished from the background noise. With wireless power,
3 Pages(750 words)Essay
Advanced Rail Tracking and Safety System (AdRaTSS): Concept of Operations
It helps in the transportation of products and human beings to various destinations that include trade centers. Similarly, it helps in the enhancement of security in the nation as security officers respond
2 Pages(500 words)Essay
Let us find you another Essay on topic Rail Track Design for FREE!
Contact us:
Contact Us Now
FREE Mobile Apps:
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us