A new railway line is required for the following purposes: Strategic consideration, Linking of trade center, Connection of port to interior country, Shortening existing route, Laying a branch line, Factors Influencing the Proposed Railway Track is Cost, Safety, Speed and Least Distance.
Creep is not constant over a given period, it is not continue in one direction or at uniform rate. Both the rails of the track may creep in same direction, perhaps both the rails reverse the direction of creep or one rail creep in opposite direction to that of other. In other words, the direction and magnitude of creep cannot be predicted.
There are two methods used for the correction of creep. These are Pulling back Method and Use of Creep Anchors / Anti Creepers. There are two methods used for the correction of creep. These are Pulling back Method & Use of Creep Anchors / Anti Creepers. In pulling back method the effects of creep are observed during ordinary maintenance of track.
Ballast is the foundation of railway track and provide just below the sleepers. The loads from the wheels of trains ultimately come on the ballast through rails and sleepers. Some of the important functions of ballast are: To provide firm and level bed for the sleepers to rest on, To allow for maintaining correct track level without disturbing the rail road
The following materials for Railway Ballast used on the railway track. Broken Stone, Gravel, Cinders / Ashes, Sand, Kankar, Moorum, Brick Ballast, Selected Earth. Broken stone is one of the best materials for railway ballst to be used on the railway tracks. Almost all the important railway tracks are provided with broken stone.
Sometimes it becomes unavoidable to lay tracks on a very poor (or undesirable) soil. In such cases it becomes necessary to improve and strengthen the nature of soil by some suitable methods. under such conditions Following methods are used 1. Layer of Moorum 2. Cement Grouting 3. Sand Piles 4. Use of Chemicals
A railway station is defined as any place on a railway line where traffic is booked and dealt with and where an authority to proceed is given to the trains. Drainage. The proposed site should be on a fairly leveled ground and it should be well drained. There should be plentiful supply for water at the site of station.
There are three distinct methods of construction of railway track. These are: Telescopic Method, Tramline Method & Mechanical Method. Telescopic method, rails, sleepers and fastenings are unloaded from the material train as close to the rail head as possible. The sleepers are carried by carts or men along the adjoining service road and spread on the ballast.
Due to the importance of airport, airport engineering has been introduced as a measure subject. It involves the design and construction of various facilities of an airport which are necessary for its efficient working.Therefore, the main components of an airport are 1. Landing Area of Airport 2. Terminal Area.
Landing area is the component of airport used for landing and takeoff operations of an aircraft. Landing area includes Runways & Taxiways. Runway is the most important part of an airport in the form of paved, long and narrow rectangular strip which actually used for landing and takeoff operations