A city is concerned about a train depot located in the center of the city. The city would like to run a mock drill to prepare for a derailment disaster that could affect not only the trains, but nearby roadways, businesses, and residents. Create a 50+ word description of a mock drill that would be appropriate for training for this scenario. Include all agencies that would be involved, and include not only emergency management, but also the appropriate professionals to analyze the scenario for future mitigation.