Complex sentence: Tangara trains have a number of safety and vigilance devices installed in order to address problems where the driver became incapacitated, such as a deadman's brake system, where if the driver releases pressure off this brake, the train comes to a halt.
Split into simpler sentences: Tangara trains have a number of safety and vigilance devices installed in order to address problems where the driver became incapacitated, such as a deadman's brake system. If the driver releases pressure off this brake, the train comes to a halt.