The unit train , also called the sled or the train service , is a train in which all cars (trains) carry commodities the same and sent from the same origin to the same destination, without being separated or kept in transit. They are different from the wagonload train, which consists of different number of cars for different customers.
The railway unit allows trains to compete more effectively with road and internal waterway systems. Time and money are saved by avoiding the complexities and delays that should be involved with the assembly and dismantling of trains at the rail base near where they are from and where they are destined. The train units are very efficient and economical for high-volume commodities. Because they often only carry one commodity, the car has the same type; often the cars are identical.
Video Unit train
Use
Train units are usually used for bulk carriage of goods. It can be a solid such as:
- Track ballasts or gravel
- Iron ore from mine to harbor or steel factory
- Coal from mine to power plant
- Coke from coke plant to steel mill
- Steel
Mass fluid is transported in a train unit consisting of a tank car, such as:
- Crude oil from oil field to refinery (could be 60,000 barrels (9,500 m 3 ) oil in a 100 unit tanker truck)
- Mineral oil products from refinery to storage facility
- Ethanol from an ethanol plant to a motor fuel blending facility
- Liquid sulfur (non-US: sulfur)
Foods, such as:
- Wheat
- Corn
- Fruit juice
- Refrigerated food
Other examples include:
- Delivery of containers, generally between ports and truck depots
- Car on autorack
- Aggregates
- Military Equipment (weapons)
- Waste (garbage), usually for recycling, often metal or paper
- Potash
- Taconite
- Sand for hydraulic fracturing
Maps Unit train
See also
- Coke Express
- The gear trains
- Railex
- Train Juice Tropicana
References
Source of the article : Wikipedia
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