Technology plays a vital role in ensuring the safe transportation of hazardous materials by reducing the possibility of accidents, exposure, leakage, fire, and environmental contamination. Since hazardous materials may be toxic, flammable, corrosive, reactive, or radioactive, their transportation requires continuous monitoring and strict control. Modern technologies have made it possible to identify hazards, monitor cargo conditions, track vehicles, and respond quickly to emergencies. One important technological application is the use of GPS and real-time vehicle tracking systems. GPS allows transport operators and emergency authorities to monitor the exact location and movement of vehicles carrying hazardous materials. Route-monitoring systems can identify unsafe roads, congested areas, tunnels, bridges, and densely populated regions. Safer routes can therefore be selected to reduce the consequences of an accident.