The Web-based Housing Authority Occupational Injury and

Disease Surveillance System (HAOIDSS)

30 April 2015

Henry CHEUNG Senior Consultant, OSHC

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• The web-based information management system for Housing Authority (HA)

• 4 main objectives 1. To record accident/incident cases happened on construction

sites 2. To assist contractors in completion of administrative and

mandatory forms for notification of accidents, incidents and occupational diseases to HA

3. To provide users alert when an action level / limit is exceeded 4. To provide HA and other users the capability to generate

statistics, reports and charts for incident surveillance

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Introduction

• The system consists of 3 modules, each containing 2 stages. All modules and stages require login name and password to access:

1. User registration and forms submission – User registration (stage 1) – Notification of accident/incident (stage 2)

2. Monitoring and statistical analysis – Data monitoring and alert function (stage 1) – Statistical Analysis (stage 2)

3. Root cause analysis – Investigation data input (stage 1) – Accident/Incident Analysis (stage 2)

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Introduction

Five HAOIDSS user groups:

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Users

User Type Description

HA User (e.g. S&H Unit, CRC Secretaries and their teams, HA IT)

• Receive email alerts • Generate reports, view root cause analysis • Input extra data such as “Working hours” for Report and

Data Analysis

Admin (OSHC) • Manage user accounts, contracts • Receive email alerts • Generate reports

HD Contract Manager

• Review and sign Form 787 • Send Form 787 to respective CRC Secretary with copy to

SM/SH of HA • Receive email alerts • Generate reports, view root cause analysis

HD Site Staff • Review, sign and pass Form 787 to HD Contract Manager • Receive email alerts • Generate reports, view root cause analysis

Contractor • Fill in and submit Form 787 to HD site Staff • Receive email alerts • Generate reports, root cause analysis

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HAOIDSS Login page

HA User

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Current progress of forms submission for the sites with accident / incident happened

Monitoring graph for HD sites statistics with control limits

Panel Function

Contractor/HD Site Staff

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Contractor/HD Site Staff

Allows inputs for contract type, occupational disease, and severity

• The report interface will enable users to select the desired type of summaries, analyses and calculations, e.g.: 1. Calculations

• Accident frequency / severity in a control chart with user-settable action level/limit

2. Summaries • Types of accident by contract number in a designated period • Factors contributing to accident by type of work in a designated

period

3. Root cause analysis • Producing a “Fault Tree Diagram” and showing immediate causes,

underlying causes and root causes 12

Reports

Report Types

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No. Type Content / Description

1 Table Accident rates for HA contracts (New Works /M&I ) against construction industry and Works Bureau in x number of years

2 Table 1. No. of Fatalities of New Works & M&I by year in x number of

years 2. No. of Incidents/accidents for HA Contracts (New Works /M&I)

by categories in x number of years

3 Table Accident rates of HA contracts against construction industry and Works Bureau in x number of years

4 Line graph

Fatal accidents rate per 1000 workers for New Works contracts, and M&I contracts against construction industry by year in x number of years

5 Line graph

Non-reportable accident rate per 1000 workers for New Works contracts, and M&I contracts against construction industry by year in x number of years

6 Line graph Accident rate per 1000 workers for New Works contracts, and M&I contracts against construction industry by year in x number of years

No. Type Content / Description

7 Line graph Accident rate of New Works contracts by month in x period HA: All construction sites with one control limit (i.e. HA target)

8 Line graph Accident rate of New Works contracts by month in x period Individual site with 4 limits (warning, target and alert of HA, contractor’s corporate)

9 Histogram

Annualized accumulative accident rate (per 1,000 workers) of active HA New Works contracts by contract number HA: All active sites/ building sites/ foundation sites of New Works contracts with HA control limit

10 Histogram Annualized accumulative accident rate (per 1,000 workers) of completed HA New Works contracts (New Works Projects) by contract number Contractor: All its completed sites with corporate control limit

11 Table Severity rate of accidents (in number of man-day lost per 100,000 man-hours worked) of HA New Works contracts in x number of years

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Report Types

Report Types

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No. Type Content / Description

12 Table

Accidents for HA Contracts (New Works contracts) by y = type of accident (part G(e)) by year in x number of years (shown in detail for just over xx% are accounted for) HA: All sites/Building sites/Foundation sites/Civil Engineering sites/demolition sites

13 Table Accidents for HA Contracts (M&I Works contracts) by year in x number of years (shown in detail for just over xx% are accounted for)

14 Table

All reportable and non-reportable accidents for HA Contracts (New Works contracts) by y = type of accident (part G(e)) by year in x number of years (shown in detail for just over xx% are accounted for) Contractor: All its sites/own site

15 - 21 Table

Accidents for HA Contracts (All sites/Building sites/Foundation sites/Civil Engineering sites/Demolition sites) by type of accident by year in 3 years by a variable y (shown in detail for just over xx% are accounted for) Y: occupation, nature of injury, body part affected, agent involved, unsafe action, unsafe condition, and personal factor

22 - 24 Chi-square test for independence

1. Type of accident (Part G(e)) vs Severity of injury (future Part Fg02) 2. Location of accident (Part G(c)) vs Severity of Injury (future Part Fg02) 3. Type of injury (Part I (b)) vs Severity of Injury (future Part Fg02)

Examples of Graphs

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Accident Rate of Contract A from Contract Commencement to Cut-off date

Examples of Tables 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014#

Construction industry No. of workers 63520 59266 52865 50185 49422 50501 55341 62635 71295 79303

fatalities 17 25 16 19 20 19 9 23 24 22 20 Fatal accident rate

0.268 0.422 0.303 0.379 0.405 0.376 0.163 0.368 0.337 0.277

HA New Works Contracts No. of workers 4382 2910 3211 4808 4782 5401 5959 6367 6528 7556

fatalities 1 0 0 0 2 0 0 0 2 1 0 Fatal accident rate

0.228 0 0 0 0.418 0 0 0 0.306 0.132 0

HA M&I Contracts No. of workers 3650 1400 1500 2475 3087 4484 4858 5038 5008 3897

fatalities 0 0 1 0 0 0 1 0 0 0 0 Fatal accident rate

0 0 0.667 0 0 0 0.206 0 0 0 0

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Print & Export

• HA and OSHC users can export form 787 into Excel by date range

787_export_sample.xlsx

Accident Investigation Analysis

Comprise 3 parts • Part 1 – Background Information of the

Accident / Incident (corresponding to relevant parts of Form 787)

• Where and when did the accident / incident happen? • Who was injured / suffered / involved with the accident /

incident? • How did the accident / incident happen? Briefly describe

the agents / machineries and/or people involved. • What activities were being carried out at the time of

accident / incident?

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• Part 2 – Accident / Incident Analysis – Based on the modified Human Factors Analysis

and Classification System (HFACS) model – Analyze 20 factors in four layers – Decide the relevancy of each factor in color code

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Accident Investigation Analysis

Relevant to the accident / incident

Abnormal condition but irrelevant to the accident / incident

Normal condition

Not applicable

Modified HFACS Model

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Accident Investigation Analysis

• Part 3 – Risk Control Action Plan – Seven questions for the risk control and

remediation measures • Schedule of risk control measures (in both long

and short terms) planned • Plan for updating relevant risk assessments or safe

working procedures • Any trends or common causes which suggest the

need for further investigation

Thank you

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