Mechanical excavation with tunnel boring machines is the most widely used tunneling method in Metro tunnels in Istanbul. However, drilling and blasting, impact hammers, and roadheaders are also used in some cases, especially in the platform tunnels. This chapter gives a unique opportunity to compare the performances of TBM, impact hammer, roadheader and conventional drilling and blasting methods in a selected Metro Project. Although blasting in urban areas is restricted due to vibrations and difficulties transporting blasting agents, it becomes necessary in extreme conditions. Roadheaders have been proven more efficient than impact hammers in terms of machine utilization time and production rate. However, high pick consumption of roadheaders makes using impact hammers in similar conditions necessary. An attempt is made to modify the equation used in the past to predict the net breaking rate of impact hammers, and it is proved that a reduction factor in the breaking rate, taking into account the thickness of the dykes improved the validity of the proposed model. One crucial point emerging from this study is that the dip and strike of the joints of 45° in the direction of cutting of the roadheaders are found to favour the cutting rate of roadheaders given higher values than predicted performance values. The dip and strike of the joints having an angle of 45° in favour of the cutting direction improves the net cutting rate of roadheaders.