Palsson, design optimisation of switch rails in railway turnouts, vehicle system. Explain with the help of neat sketches the points and. Broadly point and crossing assembly consists of three main. Pdf recently, the new ways to improve the railway switches and crossings have been sought, as the railway transport increases its operating speed. California highspeed train project turnouts and station tracks, r0 this document has been prepared by parsons brinckerhoff for the california highspeed rail authority and for application to the california highspeed train project. Railway engineering9b track junctions and track layout. Norfolk southern roadway worker protection rules source. Statistical model of railways turnout based on train. Linked by routes, it is a huge project containing relative majors and projects, such as economy, running performance, bridges, tunnels, rail, subgrade, and station, which needs combined. This standard is an extension of ifc4x1 in railway engineering domain.
This reports will just try to answer out specially two question regarding the types of left and right turnouts of railway tracks with their each components and other one is the maintenance of railway tracks with their requirements. Spread a little glue, place the turnout, put some weight to hold it untill the glue dries. This manual test method is used periodically on the rails and turnouts of higher traffic railway stations, as well as on mountain routes. Turnout definition simple arrangement of points and crossings by the manipulation of which the train from one track may be diverted to the another track or branch line or to siding is known as turnout.
A good overview by rick kolm is on the net although the article does not mention shinohara turnouts. Research article stiffness characteristics of highspeed railway turnout and the effect on the dynamic train turnout interaction jingmangxu, 1,2 pingwang, 1,2 xiaochuanma, 1,2 yuangao, 1,2 androngchen 1,2 moe key laboratory of highspeed railway engineering, southwest jiaotong university, chengdu. The manual for railway engineering mre is an annual publication released every april. Engineering analysis and geometric design of model. Arema, research professor and director of railroad engineering program, university of delaware improving inspection of turnouts. In germany, what wagons did when they met was weichen, so the railway appliance became known as a weiche. Pdf identification of behavioural models for railway. Nonlinear finite element modelling of railway turnout system. To give a train a good ride, the track alignment must be set to within a millimeter of the design. Ufc 486003 railroad track maintenance and safety standards. Pdf railway turnout failure mode analysis researchgate.
In railway engineering, an appliance is necessary to allow a vehicle to move from one track to another. For other turnouts maintained by bnsf, the siz e and weight will be determined. Switches and crossings play an essential role in connecting the rail network. Figure 2b, shows gauge for inspection of switch rail damage u. Railway engineering turnouts are now available with attached wooden ties.
There are two standard methods prevalent for designing a turnout. With a turnout the term switch refers to the moveable switchpoint rails. Track design and construction is part of a complex and multidisciplinary engineering science involving. Micro engineering turnout templates micro engineering, inc. Theory and applications, comprehensively introduces the technical characteristics and requirements of highspeed turnouts, including design theories and methods of turnout layout geometry, wheel and rail relations, track stiffness, welded turnout, turnout conversion, turnout components, and manufacture and. In the previous some 3 or 4 lectures, we have been.
Turnout parts 6 1 switch part 2 middle lead part 3 crossing partthe long, continuous rails that form the. We use them to guide trains from one track to another and to enable lines to cross paths. Any use of this document for purposes other than this project, or the. Table of contents item page norfolk southern railway. Page 2 page 2 printing instructions this is an adobe. In accordance with the agreement, metrolinx is authorized to affix the name of metrolinxgo transit.
Lapped turnouts can be used to achieve a more compact track layout in constrained locations. At the wheel rail interface with a speed of 160 kmh. Split switch is a turnout where the moveable rails are switchpoints. A railroad switch ae, turnout, or set of points be is a mechanical installation enabling railway trains to be guided from one track to another, such as at a railway junction or where a spur or siding branches off the switch consists of the pair of linked tapering rails, known as points switch rails or point blades, lying between the diverging outer rails the stock rails. Types of railway turnouts and their components what is railway turnout. General this chapter includes criteria and standards for the planning, design, construction, and maintenance as well as materials of caltrain trackwork. The term track or trackwork includes special trackwork and its interface with other components of the rail system.
Railway turnouts,their types and maintenance of tracks. Section c55 rail brace bolts addition of information. In a lapped turnout, as seen in following picture, the switch rails for a second turnout will be placed between the switch and the frog of the initial turnout. Points and crossings important terms points and crossings are provided to help transfer railway vehicles from one track to another. The manual consists of more than 5,000 pages of railway engineering. Department of electrical engineering, technical university of denmark, dk2800 kgs. Design of highspeed railway turnouts sciencedirect. Railway custom track all our turnouts are attached to pc ties printed circuit and are already insulated. Railway construction is a kind of complicated and systematic engineering affecting many aspects, with lots of influencing factors and in high technology level. Csxt will normally construct, own, and maintain turnout s the mainline and the portion of the sidetrack from the mainline turnout to and including the derail andor the insulated joints. By analogy, in america this appliance came to be known technically as a turnout. Research article stiffness characteristics of highspeed. Pdf recently, the new ways to improve the railway switches and crossings.
Optimisation of railway switches and crossings core. As an important part in rail construction, turnout helps to enable the trafficability of the rail. Page 2 cut out templates on lines page 2 printing instructions this is an adobe. Pdf a railway turnout, switch or set of points is a mechanical installation enabling railway. In this course series, we have already covered a lot many aspects on railway track. Visual end position indicators for manual operation. Methods for simulationbased optimisation of the design of railway turnouts. Railway engineering 1 track rail transport track gauge. Draw a neat sketch of a righthand turnout taking off from a straight broad gauge track and name thereon the various component parts and important terms connected with the layout. Railway continuous prestressed concrete bridge design in.
Point and crossing elements of simple turnout railway. This standard covers the following disciplines in railway engineering. On the fault detection and diagnosis of railway switch and. Technical content of ufc is the responsibility of the cognizant dod working group. It is adapted from cn engineering track standards as per the agreement between metrolinx and cn on march 28, 20. Structures shall be designed per american railway engineering and maintenance of way association arema manual chapters 1, 7, 8, or 15 as. Turnouts the simplest arrangement of points and crossing can be found on a turnout taking off from a straight track. Engineering command navfac, and air force civil engineer support agency afcesa are responsible for administration of the ufc system. Materials science and engineering paper open access. The look and operation of handlayed wooden tie turnouts that install easier than plastic turnouts. Place your own wood ties in between these pc ties and spike or glue the turnout in place. Licentiate thesis, jvtc jarnvagstekniskt centrum railway engineering.
Arema manual for railway engineering chapter 1 arema railway eng man vol 1 ch 1 pt 5 manual for, standard. Table of contents introduction 1 chapter 1 railway development 5 1. Point and crossings are peculiar arrangement used in permanent way railway track to guide the vehicle for directional change. Figure 1a, top, shows an inspection of switch rail damage u. Failure analysis of railway switches and crossings for the. Railway turnout is a mechanical device that used to guide the trains from one rail track to another.
They will hold the turnout in gauge for many years without trouble. Defense agencies should contact the preparing service for document interpretation and improvements. To locate the turnouts on centre line method, it will be necessary to knowthe different components of centre line representation. The tracks may be parallel to, diverging from, or converging with each other.
737 1390 1203 620 686 1030 114 443 1103 379 768 688 566 988 619 463 1046 713 600 891 983 1308 155 784 1047 142 225 764 1016 395 828 343 826 920 282 44 953 510 465 84 1064 1035 703 949 1405 143