Portfolio analysis of layered security measures

Area of Science:

• Security Studies
• Operations Research
• Risk Management

Background:

• Layered defense strategies are crucial for public protection against terrorist threats.
• Effective design necessitates understanding the complex interactions between various security countermeasures.
• Assessing the overall system requires a holistic view of benefits and costs.

Purpose of the Study:

• To analyze a layered security system in the Lower Manhattan area.
• To demonstrate the application of portfolio decision analysis for evaluating security measure portfolios.
• To explore the trade-offs between security enhancements and economic activity.

Main Methods:

• Portfolio decision analysis was employed to evaluate security measures.
• The study considered the total benefits and costs associated with the layered security system.
• Portfolio diagrams were utilized for stakeholder communication.

Main Results:

• The analysis provides a framework for evaluating portfolios of security measures.
• It quantifies the benefits and costs of different security system configurations.
• Portfolio diagrams effectively communicate complex trade-offs to stakeholders.

Conclusions:

• Portfolio decision analysis is a valuable tool for designing and evaluating layered security systems.
• Balancing security needs with economic considerations is essential for effective public protection.
• Clear communication of trade-offs is vital for stakeholder consensus in security planning.