طراحی شبکه زنجیره امداد چندهدفه برای پاسخگویی به زلزله تحت عدم اطمینان

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار، دانشگاه تهران.

2 کارشناسی ارشد، دانشگاه تهران.

3 استادیار، دانشگاه علم و صنعت ایران.

چکیده

امروزه به­ دلیل رشد جمعیت، خسارت­ های مالی و جانی جبران ­ناپذیری ناشی از بروز بحران ­های طبیعی و غیر­طبیعی در سراسر جهان گریبان­ گیر بشر شده ­است. لجستیک امداد بشردوستانه به ­عنوان یک فعالیت مهم مدیریت بحران، می ­تواند در نجات جان افراد، انتقال آسیب دیده­ گان به مراکز اورژانسی، تخلیه بی‌خانمان­ ها از ناحیه حادثه­ دیده و برآورده ­کردن نیاز افراد در شرایط بحران، نقش کلیدی ایفا کند. در این پژوهش یک مدل ریاضی چند­هدفه برای مسئله طراحی زنجیره امداد تحت شرایط عدم ­قطعیت برای پاسخ به نیاز زلزله پیشنهاد داده شده است که در آن اهداف حداقل‌کردن مجموع تعداد افراد مجروحی که به بیمارستان­ ها منتقل نشده­ اند و مجموع تعداد افراد بی‌خانمانی که از ناحیه حادثه ­دیده تخلیه نشده­ اند و به­ حداقل­ رساندن مجموع تقاضاهای برآورد­نشده کالاهای امدادی است. در این مدل، پارامترهای تقاضا و زمان سفر غیر­قطعی در نظر گرفته شده ­اند و برای مدلسازی عدم ­قطعیت از بهینه ­سازی استوار مبتنی بر مجموعه عدم ­قطعیت جعبه ­ای و چندوجهی استفاده شده است. نتایج حل مدل ­های استوار و قطعی نشان می­دهند که در تمامی سطوح محافظه­ کاری جواب­ های پارتویی قوی تولید شده است؛ همچنین مدل استوار در تمامی سطوح محافظه ­کاری از مدل قطعی در حل با داده ­های اسمی بدتر شده است.

کلیدواژه‌ها

عنوان مقاله [English]

Multi-objective Relief Chain Network Design for Earthquake Response under Uncertainties

نویسندگان [English]

  • Ali Bozorgi Amiri 1
  • Sohail Mansoori 2
  • Mir Saman Pishvaee 3
1 Assistant Professor, University of Tehran.
2 MS. Student, University of Tehran.
3 Assistant Professor, Iran University of Science and Technology.
چکیده [English]

Nowadays, the population growth has caused the world, all over, to face irrecoverable life/financial losses due to natural/unnatural (man-made) disasters. The humanitarian logistic can, as an important crisis management activity, play a vital role in rescuing people’s lives, transferring the injured/affected people from the affected area to emergency centers, evacuating the homeless, and meeting people’s needs in disaster conditions. In this paper, have been proposed a multi-objective mathematical model for the humanitarian supply chain design problem that minimizes: 1) total number of the injured not transferred to hospitals and total number of the homeless not evacuated from the affected area, and 2) total unmet relief commodity needs. In this model, demand and travel time have been considered as uncertain and robust counterpart model with “box and polyhedral” uncertainty sets have been developed to model uncertainties. The results obtained by the solving deterministic and robust models show that the under each degree of conservatism level, pareto optimal solution were generated. Also, under nominal data and each degree of conservatism level, the robust model performs worse than the deterministic model.

کلیدواژه‌ها [English]

  • Disaster Management
  • Response Phase
  • Humanitarian Supply Chain Network Design
  • Robust Optimization

مراجع

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