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Emergency material allocation with time-varying supply-demand based on dynamic optimization method for river chemical

Jie Liu¹, Liang Guo¹, Jiping Jiang²

¹School of Environment, Harbin Institute of Technology, Harbin, 150090, China.

Environmental Science and Pollution Research International

|April 15, 2018

Summary

This study introduces a framework for efficient emergency material allocation during river chemical spills. It optimizes response times and meets dynamic demands, balancing cost and time for effective decision-making.

Keywords:

Emergency material allocation Environmental emergency management River chemical spills Time-varying supply-demand

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Area of Science:

Environmental Science
Operations Research
Disaster Management

Background:

River chemical spills pose significant environmental and safety risks.
Rapid and efficient emergency response is crucial to minimize damage.
Existing allocation strategies may not adequately address time-varying demands.

Purpose of the Study:

To develop an emergency material allocation framework for river chemical spills.
To minimize emergency response time and satisfy dynamic material requirements.
To balance time-effective and cost-effective objectives in decision-making.

Main Methods:

Developed a framework based on time-varying supply-demand constraints.
Determined theoretically critical emergency response time to select warehouses.
Applied an enumeration method to identify practically critical response time and optimal allocation.

Main Results:

The framework effectively allocates emergency materials to meet time-dynamic demands.
Identified optimal allocation and replenishment schemes.
Demonstrated applicability through a computational experiment on a major water transfer project.

Conclusions:

The proposed methodology offers a simple and flexible tool for emergency material allocation.
Enables decision-makers to balance time and cost objectives under various pollution conditions.
Contributes to improved emergency rescue decision-making for river chemical spills.