Module Catalogue 2023/24

NUS8106 : Hazard Identification and Quantitative Risk Assessment

  • Offered for Year: 2023/24
  • Module Leader(s): Dr Kew Hong Chew
  • Owning School: NUIS
  • Teaching Location: Singapore
Semester 2 Credit Value: 20
ECTS Credits: 10.0
Pre Requisites
Pre Requisite Comment


Co Requisites
Co Requisite Comment



Course can be offered as CPD.

The aims of the module is to introduce hazard identification and quantitative risk assessment as important aspects of the evaluation of health and safety risks involved in processes, premises, installations and procedures, and to enable the students to identify, evaluate and quantify risk before and after precautionary and engineering control measures so that safety measures are included from design to operation, maintenance and finally decommissioning.

Outline Of Syllabus

1)       Introduction to process and safety risks
2)       Legislative requirements governing process safety
3)       Quantitative risk assessment methods and tools including HAZOP, HAZAN, Fault Tree Analysis, event tree analysis, FMEA, SIL, LOPA and ALARP, bow-tie analysis
4)       Integration of probits, dispersion modelling , fire and explosion into QRA

Learning Outcomes

Intended Knowledge Outcomes

At the end of the module, students should be able to:
•       Describe and explain legislative requirements governing process safety in different industries
•       Demonstrate and explain how risk can be quantified and systematically analysed using methods such as HAZOP, HAZAN, fault tree analysis, event tree, bow tie analysis, FMEA, SIL, LOPA and ALARP
•       Relate the risk assessment tools to the safety case and other regulatory requirements

Intended Skill Outcomes

At the end of the module, students should be able to:
•       Perform safety and risk analysis using methods such as HAZOP, HAZAN, fault tree analysis, FMEA, SIL, LOPA and ALARP
•       Quantify and analyse risks under various operating conditions
•       Evaluate how risks can be minimised to an acceptable level using various control and engineering measures

Teaching Methods

Teaching Activities
Category Activity Number Length Student Hours Comment
Guided Independent StudyAssessment preparation and completion140:307:00Revision for exam
Guided Independent StudyAssessment preparation and completion12:002:00Closed-book exam
Scheduled Learning And Teaching ActivitiesLecture142:0028:00N/A
Scheduled Learning And Teaching ActivitiesSmall group teaching141:0014:00Tutorials
Guided Independent StudyProject work130:0030:00A1 case study coursework including background research
Scheduled Learning And Teaching ActivitiesWorkshops53:0015:00N/A
Scheduled Learning And Teaching ActivitiesDrop-in/surgery23:006:00Surgery on project submission Tutorials
Guided Independent StudyIndependent study142:0042:00Review lecture notes, general reading
Guided Independent StudyIndependent study142:0028:00Tutorial preparation
Guided Independent StudyIndependent study141:0014:00Lecture follow-up
Guided Independent StudyIndependent study141:0014:00Background reading
Teaching Rationale And Relationship

The teaching is mainly via lectures, tutorial and workshops. This is complemented with self-study and preparation of tutorial solutions, coursework and final exam in order to provide feedback on student learning. Teaching materials are made available to the students online in order for self-study and preparation in their own pace. Tutorial classes enable students to ask questions and clarify any doubts.

Reading Lists

Assessment Methods

The format of resits will be determined by the Board of Examiners

Description Length Semester When Set Percentage Comment
Written Examination1201A6024 hrs Take home exam (to be submitted within 24 hours of being set)
Other Assessment
Description Semester When Set Percentage Comment
Written exercise1M40A1 case study with a report submission comprising of 2000 words including abstract, background, methodology, results of QRA
Assessment Rationale And Relationship

The written exam enables students to demonstrate understanding and apply knowledge and skills learnt to solving engineering problems. Coursework assignment provide students more time to think about larger problem and provide engineering solutions to it and present it in a written report.

A1 coursework of a QRA case study with a report submission comprising of 2000 words including abstract, background, methodology, results of QRA, conclusion and recommendation.


Past Exam Papers

General Notes


Disclaimer: The information contained within the Module Catalogue relates to the 2023/24 academic year. In accordance with University Terms and Conditions, the University makes all reasonable efforts to deliver the modules as described. Modules may be amended on an annual basis to take account of changing staff expertise, developments in the discipline, the requirements of external bodies and partners, and student feedback. Module information for the 2024/25 entry will be published here in early-April 2024. Queries about information in the Module Catalogue should in the first instance be addressed to your School Office.