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Generally, the railway tunnel through a mountain tunnel is a single format to double or twin single-way tunnel. Which, when considered in comparison to the advantages and disadvantages of the pattern of the appropriate tunnel cutting face. It found that a single tunnel with double is a somma because lower-unit construction. Pressure changes per a train while running through a large tunnel under the. To affect passengers less than in case of fire in a tunnel. The upper area of the tunnel is large enough to hold more than smoke store. Make use of the passenger evacuation time can have a better performance as well. In table 1 shows a comparison of the advantages and disadvantages of both formats.

In general, the rail tunnel through the mountains to form a tunnel through a single tunnel or a pair of singles. When comparing the advantages and disadvantages of the model of the tunnel section. The pair found that the tomb was more appropriate. The construction cost per unit lower. Pressure changes on the rail while running through the tunnel at large is lower. It affects fewer passengers. And in the event of a fire in the tunnel. The area above the tunnel at large will be able to retain more smoke. Make use of time to evacuate passengers can be achieved by a better performance than the other in Table 1 shows a comparison of the advantages and disadvantages of the tunnel. Both formats

In general, tunnels through the mountains have formed a single tunnel in pairs or pairs of single tunnel When comparing the advantages and disadvantages of the model of the tunnel proper.Due to the lower cost per unit Pressure changes of the train running through the tunnel at large is lower. Affected per passenger less. And, in the case of the fire in the tunnel.The time spent in evacuation of passengers can be done by a better efficiency. In Table 1 show the comparison of the advantages and disadvantages of the tunnel. Both formats.