The Federal Railroad Administration (FRA) is the federal agency responsible for overseeing the safety of railroads and mass transit systems in the United States.

The primary goal of railroad security measures is to ensure the safety of passengers and employees by preventing accidents, injuries, and fatalities.

Armed security guards are not typically used as a security measure in mass transit systems due to the potential for escalation of violence and the risk of harm to passengers and employees.

An emergency response plan in a mass transit system serves multiple purposes, including coordinating the response of emergency services, providing guidance to passengers and employees, and ensuring that emergency equipment is properly maintained and functioning.

Active shooter incidents are not as common in mass transit systems as other types of emergencies such as fires, explosions, and natural disasters.

The NTSB's role is to investigate accidents and make recommendations for preventing future incidents, rather than setting safety standards, enforcing regulations, or providing training and education.

PTC technology is primarily focused on preventing train collisions by automatically applying brakes if a train is at risk of colliding with another train or an obstruction.

Monorail is not as common as other types of mass transit systems such as BRT, LRT, and HRT.

Regular security audits are conducted to identify vulnerabilities and areas for improvement in security measures, rather than ensuring compliance, providing training, or evaluating effectiveness.

Natural disasters are not typically considered a security threat to railroads and mass transit systems, as they are not intentional acts of harm.

Regular emergency drills serve multiple purposes, including ensuring the effectiveness of emergency response plans, providing training and education, and testing communication systems and equipment.

Facial recognition software is not as commonly used as other security technologies such as surveillance cameras, biometric scanners, and metal detectors in mass transit systems.

Risk assessments serve multiple purposes, including identifying potential threats and vulnerabilities, prioritizing security measures, allocating resources, and developing emergency response plans.

Customer service training is not typically provided to railroad and mass transit security personnel, as their primary focus is on security and emergency response.