Guidelines for the Preparation of Cost Estimates for Traffic Management and Safety & Health Requirements for the Construction and Maintenance of Roads, Bridges and Safety & Health Requirements for School Buildings

January 18, 2018

DPWH DEPARTMENT ORDER NO. 13, S. 2018

In order to ensure proper implementation of road works safety & traffic management and construction safety & health program during the construction and maintenance of all roads, bridges and school building projects under the DPWH infrastructure program, all Implementing Offices of this Department are hereby directed to adopt the subject Guidelines (Annex "A") which prescribes the minimum requirement of the said items in the preparation of Program of Works (POW), Approved Budget for the Contract (ABC) and Detailed Unit Price Analysis (DUPA).

The cost estimates for these items shall include supply of materials, installation and maintenance considered for the entire duration of the project on a lump sum basis as specified in the guideline to be supported with detailed breakdown of requirements and cost computations in the DUPA. The project's safety & health and traffic management requirements shall be considered under Item B.7 — Occupational Safety and Health Program, Item B.8 — Traffic Management, Item 605 — Road Signs and other applicable items as prescribed in the revised standardized pay items of works per latest approved department issuances. Further, a complete quantity and description of traffic management and construction safety and health requirements shall be indicated in the Annex supplied for the particular pay item in the bill of quantities of the Bid Documents. This shall be provided to all interested bidders to ensure proper compliance of requirements and monitoring during project implementation.

The derivation of quantities and cost estimates for the aforementioned items shall be based on the approved Traffic Management Plan (TMP), Construction Safety and Health Program (CSHP) and other identified safety requirements of the project. Such cost shall not exceed the allowable percentage per project category as shown in Table No. 5 to Table No. 8 of the said Guideline (Annex "A").

In case of a cost percentage higher than 10% of what is prescribed to address the actual requirements, the head of the implementing office shall seek review of the TMP and CSHP from the Bureau of Quality and Safety (BQS) and corresponding review of cost from the Bureau of Construction (BOC).

This Order supplements the existing DPWH Road Works Safety Manual, Series of 2004; D.O. No. 56, Series of 2005 — Guidelines for the Implementation of DOLE D.O. No. 13, Series of 1998 on Occupational Safety and Health in the Construction Industry; D.O. No. 36, Series of 2007 — Provision and Installation of Road Safety Devices along Critical Sections of all DPWH Preventive Maintenance/Asphalt Overlay and Reblocking Projects; and D.O. No. 103, Series of 2016 — Guidelines in the Preparation of Provision and Maintenance of Traffic Control as Pay Item in the Approved Budget for the Contract (ABC) on Infrastructure Projects.

This Order shall take effect immediately.

(SGD.) MARK A. VILLARSecretary

 

ANNEX A

Guidelines for the Preparation of Cost Estimates for Traffic Management and Safety & Health Requirements for the Construction and Maintenance of Roads, Bridges and Safety & Health Requirements for School Buildings

FOREWORD

The Department of Public Works and Highways (DPWH) being the primary engineering and construction arm of the government recognizes its responsibility to enforce compliance to the Occupational Safety and Health Standards established by the Department of Labor and Employment (DOLE). In its effort to impose the required construction safety practices, challenges in the compliance with the standards, however, have been encountered.

Relentless in its pursuit of providing a safer work environment, this Guidelines for the Preparation of Cost Estimates for Traffic Management and Safety & Health Requirements for the Construction and Maintenance of Roads, Bridges and Safety & Health Requirements for School Buildings was prepared with the intent of improving the implementing offices' means of preparing cost estimate/budget on safety requirements particularly for road, bridge, and school building projects. It targets to serve as a preparatory work in imposing the presentation and quantification of detailed safety requirements in the preparation of the Program of Works (POW) and Approved Budget for the Contract (ABC) and further, in the Bid Documents for contractors to be informed of the detailed requirements to be provided on site.

It is hoped that adherence to this guideline shall further promote compliance of DPWH projects on the aforesaid Safety and Health Standards through ensuring the provision of right cost of construction safety requirements.

(SGD.) MARK A. VILLARSecretary

Introduction

When it comes to maintenance and construction works, safety must be of utmost priority. In the process of delivering civil works to address the needs of the Filipino people specifically in providing quality and safe infrastructure, safety during maintenance and construction works must be at the top of the minds of the implementing agencies and contractors to protect the workers as well as the people residing nearby and traveling public who use the adjacent/detour lanes. Preventive methods by risk mitigation and reduction of construction hazards through implementation of standard safety practices, complete and consistent use of personal protective equipment, adequate temporary road works traffic control (directional, regulatory, and warning signs, barriers, traffic cones, and other road safety devices), are the best solutions to minimize, if not eliminate, the occurrence of road crashes and untoward incidents.

In the Philippines, the Department of Labor and Employment (DOLE) leads the formulation, implementation and compliance monitoring of the Occupational Safety and Health Standards (OSHS) — the governing standards in the country's construction industry in terms of occupational safety and health. Correspondingly, the Department of Public Works and Highways (DPWH), as the primary engineering and construction arm of the government, has been seeking to continually reinforce the implementation of such standards by issuing guidelines and procedures through Department issuances and manuals.

Challenges in the compliance with the standards, however, have been encountered. The Department's engineers have encountered difficulty in imposing to the contractors the site safety requirements that are not presented in detail in the Contract or in the Program of Works. The major contributing factor is the lack of understanding of engineers and the contractors particularly on the standards related to the implementation of road works safety, traffic management and construction safety and health.

Thus, this cost estimation guideline entitled Guidelines for the Preparation of Cost Estimates for Traffic Management and Safety & Health Requirements for the Construction and Maintenance of Roads, Bridges and Safety & Health Requirements for School Buildings is hereby presented to introduce improvement in the Department's pursuit of further enhancing and sustaining the compliance to such safety standards particularly in the methods of deriving the cost and budget for construction safety requirements.

About this Guideline

This guideline basically presents methods on how to prepare detailed cost estimate for road works safety, traffic management, and general construction safety and health requirements to be reflected in the Detailed Unit Price Analysis (DUPA) and Program of Works (POW) required for every project particularly for roads, bridges, and buildings.

Relevant guidelines and manuals adopted and referred herein are the DPWH Road Works Safety Manual, 2004, DOLE D.O. 13, Series of 1998, and D.O. 56, Series of 2005. As an improvement to the DPWH Road Works Safety Manual, 2004, this guideline introduced minimum safety requirements on construction safety for bridge, drainage with deep excavations and building. Illustration of construction sequences particularly for road works were also included. The necessary traffic management schemes as part of a traffic management plan and corresponding Detailed Unit Price Analysis (DUPA) for traffic management and construction safety & health requirements are presented in this guideline for the purpose of illustrating the steps for cost computation thus, the implementing offices should verify the prevailing costs in their area in the preparation of POW and DUPA.

Every project is unique so, road works safety & traffic management and construction safety & health requirements vary depending on the actual site condition, programmed items of work and other foreseen necessities. Hence, contents herein would only serve as a guide as to what are advisable and minimum requirements. Modifications may be made if deemed necessary.

• General Objective

 In a more holistic perspective, this guideline aims to impart on the Department's effort of improving the proper implementation of construction safety and health program on all projects handled by DPWH. This cost estimation guideline intends to improve the implementing offices' means of preparing cost estimate/budget on safety requirements particularly for road, bridge, and building projects. It targets to serve as a preparatory work in imposing the presentation and quantification of detailed safety requirements in the preparation of the Program of Work (POW) and Approved Budget for the Contract (ABC) and further, in the Bid Documents for contractors to be informed on the detailed requirements to be provided on site. Moreover, this guideline aims to establish a baseline cost of safety requirements (in percentage) relative to a project's cost of civil works.

• Specific Objectives

1. To present the construction safety requirements and its application on road, bridge, and building projects commonly implemented by DPWH.

2. To illustrate the quantification of requirements and the corresponding preparation of cost through Detailed Unit Price Analysis (DUPA).

3. To present a matrix of the project's cost of safety requirements versus the cost of civil works.

PART-A

General

A-1 Acronyms and Definition of Terms

ACRONYM

ABC — Approved Budget for the Contract

CSHP — Construction Safety and Health Program

DO — Department Order

DOLE — Department of Labor and Employment

DUPA — Detailed Unit Price Analysis

POW — Program of Work

PPE — Personal Protective Equipment

OSHS — Occupational Safety and Health Standards

DEFINITION OF TERMS

Dimension (D) — The dimension 'D' relates to distances for signage locations and taper lengths for different vehicle approach speeds. It is expressed in meters equal to the approach speed of traffic in kilometers per hour. For example, if the approach speed of traffic is 60 kph then the dimension D is 60 meters.

High Speed Road — Road sections with traffic approach speed between 60 kph and 80 kph

High Volume Road — Road sections accommodating 1,500 or more vehicles per day

Long Term Works — Works taking longer than a day and need to be provided with signage overnight and are commonly applicable for road and bridge works implemented by contract.

Low Speed Road — Road sections with traffic approach speed of less than 60 kph

Low Volume Road — Road sections accommodating less than 1,500 vehicles per day

Road Works Traffic Control — Activity which involves directing vehicular and pedestrian traffic around a construction zone or other road disruption through the provision of directional, regulatory, and warning signs, barriers, traffic cones, traffic controllers, and other devices to regulate, warn, or guide road users in order to attain safe and efficient movement of vehicles, pedestrians, bicyclists, workers, and the general public.

Short Term Works — Works to be completed within a day and need not be provided with signage overnight. This is usually applicable for road and bridge routine maintenance works usually performed by administration.

Temporary Signage — Construction safety signage installed for purposes of warning, informing and controlling the workers and the public on an on-going construction operation.

Traffic Management — The application of specific traffic control practices over a length of road or over an area, to achieve specified objectives like reduction of traffic congestion or regulation of traffic flow, which may be set by a governing agency (DPWH) responsible on arterial roads or the Local Government Unit (LGU) responsible on provincial and local roads.

Traffic Management Plan — A site-specific plan showing the proposed worksite layout with detailed description and location of signs, traffic control devices, and equipment at different stages of construction. It also describes the details on how work personnel, the public, and those who will be impacted by the work can be safely and efficiently guided through a roadwork site so that the road network is kept at a satisfactory level of performance.

Very High Speed Road — Road sections with traffic approach speed greater than 80 kph

A-2 Procedural Guidelines — D.O. No. 13, Series of 1998

Guidelines Governing Occupational Safety & Health in the Construction Industry

A-2.1 Personal Protective Equipment (PPE)

 For General Construction Work, basic PPE for all construction workers are the following:

a. Safety Helmet/Hard hat

b. Safety Gloves

c. Safety Shoes

 Specialty PPE as listed below shall be provided to workers in addition to or lieu of the corresponding basic PPE as the work or activity requires.

Table 1 — Required Specialty Personal Protective Equipment as per DOLE D.O. 13, Series of 1998

Construction Work/Activity	Specialized PPE	Remarks
1. Work near unprotected areas such as but not limited to the following a. Working scaffolds b. Working on roofs	1. Safety Belt	Where there is a possibility of fall that will normally cause disabling injury
2. Work involving pouring of concrete such as but not limited to the following a. Laying concrete slab b. Pouring of concrete for beams and/or columns	1. Safety chemical resistant boots	If worker's feet may have contact with fresh concrete
2. Chemical resistant gloves	If worker's hands may have contact with fresh concrete
3. Work involving laying of asphalt	1. Heat resistant gloves	If worker needs to work on or near hot asphalt
2. Heat resistant safety footwear
4. Working with derricks and cranes	1. Color-coded vest with reflectorized markings	Proper visibility and identification of critical persons such as operators, riggers, signal men
2. Heavy leather gloves	For riggers
3. High visibility gloves	For signal men
5. Working with earth moving equipment	1. Heavy duty safety footwear	Safety shoes for relatively dry or sheltered work
Water and mud resistant boots for wet outdoor works
2. Ear muff or ear plugs	When working near or on noisy equipment
3. High visibility gloves	For spotters
4. High visibility vest	For all workers within immediate vicinity equipment
6. Manual excavation or digging	1. Padded Vest	When work may involve being hit by falling materials
7. Work on top of or near bodies of water	1. Life vest	When there is danger of fall into deep water
2. Safety belt
8. Work where hot cutting and welding of metals are involved	1. Heat resistant light filtering face shield	For welders and gas cutters
2. Heat resistant and heat insulating gloves
3. Metal fume filtering respirators
4. Heat resistant protective clothing
5. Light filtering and heat resistant face goggles	For gas cutting in lieu of face shield
9. When working with live electricity above 50 volts AC or DC	1. Electrically insulated gloves	Electrical resistance must be suitable for the maximum electrical voltage of energized parts that may be handled by worker
2. Electrically insulated safety shoes
10. Work involving exposure to or handling of hot materials or work near open flame	1. Heat resistant and heat insulating gloves	For handling of hot substances and materials
2. Heat insulating protective clothing	For working in hot working environment
3. Heat resistant face shield	For working near open flame
11. Work involving handling of noisy and/or vibrating power tools/equipment	1. Vibration insulating gloves	Recommended total cumulative actual usage of tool shall be a maximum of 2 hours per day (for 8-hour work, duty cycle should be 1:4)
2. Ear protection	When power tool generates noise of more than 85 dB
12. Work involving exposure to harmful dust	1. Dust filtering respirators	If dust concentration is above recommended Threshold Limit Value (TLV) for the contaminant
13. Work that may involve shortage of oxygen	1. Self-contained or supplied air respirator	Work in confined spaces or work involving depletion of oxygen supply
14. Working with organic solvent or toxic and/or corrosive chemicals	1. Chemical resistant gloves	If work involves handling of chemicals
2. Chemical filtering respirator	If chemical emits vapors above recommended TLV for the contaminant chemical/s
3. Chemical resistant face shield	If work may involve chemical splashes to the face
4. Chemical goggles	If chemical vapors may irritate eyes
5. Chemical resistant protective clothing	If work will involve chemical splashes to the body of worker
15. Working with atmospheres containing contaminants above recommended threshold limit values for airborne contaminants	1. Appropriate contaminant filtering respirator	For atmospheres containing not more than ten times the recommended TLV
2. Contaminant protection for eyes	If contaminant may irritate eyes
3. Self-contained or supplied air respirator	For environment containing more than ten times the recommended TLV
4. Chemical suits	If contaminant may enter through skin
16. Working under high pressure
17. Working near vehicular traffic	1. PPEs with Reflectorized or luminous markings for high visibility
2. Heavy duty safety shoes
18. Work which involves working underwater	1. Self-contained or supplied air underwater breathing apparatus
2. Thermal insulating wet suit and accessories	If work involves long exposure to cold water
19. Working at night under low lighting conditions	1. High visibility vest

 

A-2.2 Safety and Health Personnel

 Based on Section 1033, Rule 1030 and Section 8 of DOLE D.O. 13, Series of 1998 of the Occupational Safety and Health Standards (OSHS as Amended 1989), the following number of safety personnel and emergency occupational health personnel and facilities are required depending on the number of workers.

Table 2 — Considerations in the employment of safety man and emergency health personnel

Number of Workers

Number of Safety Man

Hazardous Workplace

200 and below	One (1) part-time safety man
Over 200 to 1000	One (1) full-time safety man
For every 1000 workers	One (1) full-time safety man

Non-hazardous Workplace

Less than 1000	One (1) part-time safety man
For every 1000	One (1) full-time safety man
Number of Workers	Number of Emergency Health Personnel
Less than 50	One (1) full time certified first-aider
Over 50 to 200	One (1) full-time registered nurse
Over 200 to 300	One (1) full-time registered nurse One (1) part-time physician One (1) part-time dentist And an emergency clinic
Over 300	One (1) full-time registered nurse One (1) full-time physician One (1) full-time dentist And an infirmary or emergency hospital with one (1) bed capacity

 

A part time safety man shall be allotted at least four (4) hours per week to perform the duties as safety man. With regard to the provision of emergency hospital, Section 1963.03 of OSHS states that an employer may not establish an emergency hospital or dental clinic in his workplace as required if a hospital or dental clinic which is located not more than 5 kilometers away from the workplace or which can be reached in 25 minutes of travel is situated and the employer has facilities readily available for transporting workers to the hospital or clinic in case of emergency.

A-2.3 Signage and Barricades as Prescribed in the Procedural Guidelines of DOLE D.O. 13, Series of 1998

 Construction Safety Signage shall be provided as a precaution and to advise the workers and the general public of the hazards existing in the worksite.

2.3.1 Signage Procedures

 As per DOLE's requirement, the signage shall be:

a. Posted in prominent positions and at strategic locations.

b. As far as practicable, be in the language understandable to most of the workers employed in the site.

c. For non-raised floor areas, the attached yellow CAUTION sign shall be used when using yellow CAUTION TAPE.

d. For non-raised floor areas, the attached red DANGER sign shall be used when using the red DANGER TAPE.

e. Placed in designated areas at 1.20 meter from the ground level, if there is no other more practicable height.

f. Regularly inspected and maintained in good condition to achieve its purpose. Signage that are damaged; illegible or that no longer apply as to purpose, site or language, shall be removed or replaced by the safety officer when needed.

g. Removed after the hazard is completely eliminated. If upon work completion that hazard is still present, the signage shall remain in place.

h. Designed and constructed following the Overall Dimensions of Safety Signs Formula as required by the OSHS.

i. Specific with the type of hazard and should indicate the name of the contaminant/substance involved (for chemical hazards), and the type of PPE or respiratory equipment to be worn.

2.3.2 Posting of Signage

 Posting of signage shall include, but not limited to the following places:

a. Areas where there are risks of falling objects.

b. Areas where there are risks of falling, slipping, tripping among workers and the public.

c. Prior to entry in project sites, locations and its perimeter.

d. Where there is mandatory requirement on the usage of PPEs.

e. Areas where explosives and flammable substances are used or stored.

f. Approaches to working areas where danger from toxic or irritant airborne contaminants/substances may exist.

g. All places where contact with or proximity to electrical facility/equipment can cause danger.

h. All places where workers may come in contact with dangerous moving parts of machinery or equipment.

i. Locations of fire alarms and fire-fighting equipment.

j. Locations for instructions on the proper usage of specific construction equipment, tools.

2.3.3 Barricading Procedures

 In barricading, the following shall apply:

a. The contractor shall provide all necessary barricades, safety tapes, safety cones or safety lines as required in isolating or protecting an unsafe work area from other workers, pedestrians or vehicular traffic.

b. Barricades shall completely enclose the hazardous area and effectively limit unintentional or casual entry.

c. Barricades shall be 0.90-meter vertical height from the ground, when no other more practical height specification is available.

d. Barricades shall be maintained in good condition to achieve its purpose.

e. Barricades that are damaged; faded or that no longer apply as to purpose, site or meaning, shall be removed or shall be replaced by the safety officer.

f. Barricade tape shall not be used on the floor as this presents a slipping hazard of its own.

g. In addition to using the proper warning tape, the contractor shall use the appropriate safety signage when barricading an area.

h. All barricades shall be removed after hazard is completely eliminated.

i. Upon work completion, if the hazard is still present, the barricade shall remain in place.

2.3.4 Installation of barricades

 Installation of barricades shall include, but not limited to the following worksite conditions:

a. Hazardous areas

b. Trip hazard

c. Robotic movement

d. Energized electrical works

e. Overhead suspended load test

f. Critical high pressure test

g. Chemical introduction

h. Fall exposure

i. Emergency Response Zone

j. Unsafe condition zone

k. Danger zone

l. Confined and enclosed space

A-3 Reference Laws, Policies, Manuals, and Guidelines

In the preparation of this guideline, the following are the basis and references which the user may need for more detailed information:

a. Handbook on Philippine Government Procurement (R.A. 9184)

b. DOLE D.O. 13, Series of 1998

 The Guidelines Governing Occupational Safety and Health in the Construction Industry

c. D.O. 135, Series of 2015

 Strict Compliance to the Road Works Safety & Traffic Management and Construction Safety and Health Requirements during Construction and Maintenance of Roads and Bridges

d. Department Circular No. 29, Series of 2015

 DOLE and DPWH Joint Memorandum Agreement on the Approval of CSHP of Government Infrastructure Projects

e. D.O. 197, Series of 2016

 Revised Guidelines in the Preparation of Approved Budget for the Contract (ABC)

f. D.O. 129, Series of 2014

 Guidelines in the Implementation of Memorandum Dated July 17, 2014 of the Secretary of DOLE on the Procedure in the Evaluation of Construction Safety and Health Program (CSHP) of Contractors Engaged by DPWH Pursuant to DPWH D.O. No. 56, Series of 2005

g. D.O. 54, Series of 2012

 Guidelines on Reblocking of Portland Cement Concrete Pavement

h. D.O. 44, Series of 2012

 Standardization of Construction Duration of DPWH Projects

i. D.O. 41, Series of 2012

 Adoption of the Revised Manual on DPWH Highway Safety Design Standards May 2012 Edition

j. D.O. 13, Series of 2008

 Guidelines in the Procurement and Installation of Road Safety Devices and Facilities

k. D.O. 56, Series of 2005

 Guidelines in the Implementation of DOLE D.O. No. 13, Series of 1998 on Occupational Safety and Health in the Construction Industry

l. Department Circular No. 09, Series of 2004

 Road Safety Manuals and Handbooks

m. Department Order No. 70, Series of 1998

 Traffic Alleviation for Major DPWH Projects along Heavily Thoroughfares in Metro Manila

n. DPWH Road Works Safety Manual, 2004

o. DPWH Highway Safety Design Standards Part 2: Road Signs and Pavement Markings Manual

p. DPWH Construction Materials Price Data and Labor Rates

PART-B

Cost of Road Works Safety & Traffic Management

B-1 General Steps in Cost Derivation

B-2 Traffic Management Layouts

The DPWH Road Works Safety Manual, 2004 includes discussion on the principles of worksite traffic management. For purposes of providing easy reference in this cost estimation guideline, presented herein are the worksite layout of signage and devices adopted from the DPWH Road Works Safety Manual (2004). However, a number of cases were observed in actual project implementation which also needs to be addressed thus, additional cases are introduced and some modifications are made on the layouts presented on the aforementioned manual.

The Traffic Management Layouts as presented in this guideline are still categorized into the following:

a. Short Term Works

b. Long Term Works

c. Detours and Side Tracks

d. Intersection Works

e. Pavement Marking Works

Through the illustrative traffic management layouts, the user of this guideline will be able to determine the basic requirements for the on-site implementation of road works safety and traffic management. Knowing such does not guarantee the sufficiency of knowledge in the proper practice of road works safety thus, a Traffic Management Plan (TMP) should be prepared by designated personnel in the office trained or have undergone seminar on the field of road works safety and traffic management. The traffic management layouts that would form part of the TMP to be prepared by the implementing office is not necessarily similar as presented in this guideline. Adjustments should be made to provide the necessary traffic control devices to be installed on site for a specific project. The need for a traffic controller is also illustrated on the different layouts and the requirement of providing a traffic controller for 24 hours on-site would depend on the actual operation and condition of the project. If closing a certain lane of the road hinders the continuous flow of a two-way traffic, then a traffic controller should be provided for the period that it is needed.

For purposes of illustrating the steps in deriving the cost, layouts in this guideline are utilized as basis in determining the quantities of signage and traffic devices.

Short Term Works

Long Term Works

Detours and Side Tracks

Intersection Works

Pavement Marking Works

B-3 Plans and Specifications

Details on the color, standard sizes of signage, text layout and the requirement for luminosity/visibility of the signage, specification for other traffic control devices and relative standards are specified in the DPWH Road Works Safety Manual (2004). However, not all specifications of materials are stated in the said manual particularly the frame/support to be used for the temporary signage.

Based on DPWH Highway Safety Design Standards Part 2: Road Signs and Pavement Markings Manual, signs that are intended to convey message during dark periods need to be reflectorized or illuminated for greater visibility of colors and shapes. Reflectorization is achieved by the use of retro-reflective materials on legends, letter, borders and background of the sign. This requirement for reflectorization using a retro-reflective material is most advised for regular road signs as it would be for long term use and be fixed on our national highways. Similarly, for temporary road signs used in road works, standard specifications as advised shall be adopted. For the frames to hold the sign panels, design is as presented below.

Figure 2. Detail of the Two-Sided Sign Frame

Figure 3. Details of Construction Mesh Fence/Barricade

To further improve the visibility of onsite set-up road works traffic management signage and devices particularly during nighttime, LED flasher light or appropriate available retro-reflective material is suggested to be attached or separately mounted on the installed temporary bollards, traffic cones, safety barrier and mesh fence/barricade along the confined area (work zone).

Figure 4. Installing or Attaching of Barricade Flasher Light on Traffic Devices (a) on Traffic Cones, (b) on Temporary Signage, (c) on Barriers or Fence

Figure 5. Details of Concrete Barrier

B-4 Cost Component

The cost for construction safety and health must be taken into consideration in the preparation of Program of Work (POW) for every project. Section 8.1 of the Procedural Guidelines of DOLE D.O. 13, Series of 1998 — The Guidelines Governing Occupational Safety and Health in the Construction Industry states that the total cost of implementing a Construction Safety and Health Program shall be mandatory and shall be made an integral part of the project's construction cost as a separate pay item, duly quantified and reflected in the Project's Construction Contract Documents.

The road works safety wherein provision of traffic devices and signage are necessary to protect the workers and the road users from the probable harm of the on-going construction is considered in this guideline as covered by the abovementioned governing guidelines of DOLE. Hence, quantification and costing of those requirements are necessary.

Moreover, the DPWH D.O. 22, series of 2015 as superseded by D.O. 197, Series of 2016 presents that the cost of Construction Safety and Health is not embedded/incorporated in each civil work items thus, considered as a separate pay item under non-civil works but not subject to OCM mark-up. D.O. 05, Series of 2017 also specify Item B.7 — Occupational Safety and Health Program and B.8 Traffic Management as pay items under Part B — Other General Requirements.

B-4.1 Considerations in the Preparation of DUPA

 To illustrate the basic cost estimation process in this guideline, prepared herein is the Detailed Unit Price Analysis (DUPA) based on plans, specifications, and requirements presented in Section B-2 to B-3. The DUPA as presented in this guideline serve only as a reference for the implementing offices in deriving costs for the road works safety & traffic management and construction safety & health. Should there be an increase/decrease in cost, the Implementing Offices in its derivation of cost shall correspondingly make the necessary adjustments. Cost of Personal Protective Equipment (PPE) (e.g., safety shoes and gloves) will be based on the actual specific requirements and as prescribed in Table 1. It must be noted however, that the quantities of signs and traffic control devices in the DUPA presented in this guideline are not fixed as quantification should be based on the prepared worksite traffic management plan applicable for the specific project.

 Table 3 tabulates the estimated unit cost for each road work signage and is utilized in the preparation of DUPA for each traffic management layout. With regard to costing, payment for the signage is in a daily rental basis which means that it will not be turned over to the implementing office after the completion of the project. The implementing office will only pay the contractor for providing the safety requirements within the period that the devices and signs are used in the project.

 In the determination of the daily rental cost of the devices and signage, the following lifespan of materials are considered:

• Road works standard retroreflective signs — 3 years

• Plastic Safety Barriers — 2 years

• Traffic Cones — 2 years

• Temporary Bollards — 2 years

• Construction Safety Fence/Barricade — 2 years

• Concrete Safety Barriers — 5 years

 For estimation and illustration purposes, sample DUPA of each traffic management layout presented herein are referred from the DPWH Construction Materials Price Data (CMPD 2015, NCR), DOLE Standard Labor Rates, D.O. 22, Series of 2015. The Implementing Offices shall adjust accordingly upon issuance of reference, guidelines and related policies that may supersede the stated references in this guideline.

Table 3 — List of Road Works Temporary Signage and the Estimated Daily Rental Cost

B-4.2 Detailed Unit Price Analysis (DUPA) per Traffic Management Layout

Detailed Unit Price Analysis

B-4.3 Relative Percentage of Cost for Road Works Safety and Traffic Management to the Cost of Civil Works

Table 4. Relative Cost of Roadworks Safety & Traffic Management to the Cost of Civil Works

Table 5. Relative weight of the cost of road works safety and traffic management to the civil works

Project Category/Level of Improvement

Percentage of Cost for Road Works Safety & Traffic Management Relative to the Cost of Civil Works

A. Roads

	1	Paved (Concrete) To Paved (Concrete)	5.25
	2	Paved (Asphalt) To Paved (Concrete)	4.40
	3	Paved (Asphalt) To Paved (Asphalt)	2.90
	4	Gravel To Asphalt	2.05
	5	Gravel To Concrete	3.40
	6	Asphalt Overlay	1.15
	7	Concrete Reblocking, 30% of existing PCCP	1.45
	8	Concrete Reblocking, 50% of existing PCCP	1.70
	9	Re-Gravelling	0.05
	10	Widening Paved	0.90

B. Bridges

	1	RCDG on RC. Pile Foundation	1.40
	2	PSCG on RC. Pile Foundation	1.60
	3	RCDG on Bored Pile Foundation	1.25
	4	PSCG on Bored Pile Foundation	1.25

 

Note: Derived percentage of cost of road works safety & traffic management requirements (as per TMP) relative to civil works is advisably lower than the values above or within + 10%.

B-4.4 Sample Computation and Illustrations

SAMPLE ILLUSTRATION NO. 1 Road Reconstruction

 

• Site Condition:

 A proposed 1 kilometer continuous road reconstruction work has the following road construction and traffic conditions to be considered:

Road Location	Rural Area
Direction of traffic	Two way traffic
Number of Lanes	Two Lanes
Maximum Speed of Vehicles	40 kph (Low Speed)
Designed strength of concrete for the PCCP	3-day concrete (3 days curing period)

 

• Proposed Traffic Management Layout

 In this condition, each series of roadwork set-up or layout is planned to be 100 meter in length. To facilitate the completion of work, 2 set-ups are proposed to be undertaken performing parallel works. Qualifying this as a long term work, Layout 7 (Case 1) — Part Lane Closure can be considered as the applicable traffic management layout but with some modifications to suit actual project condition and requirements.

 Illustrated below is the proposed traffic management scheme with two set-ups operating on opposite ends of the stretch of the road to be reconstructed. The two groups will be moving forward to meet at the center until the works in one lane are completed. Considering the distance between the two on-going operations, the traffic controllers shall be provided with hand held two-way radio for communication and coordination. As the groups meet towards the center, the number of traffic controllers may be reduced and a longer stretch of the road/area will be closed as work zone.

 The corresponding DUPA reflecting the estimated cost for road works safety and traffic management based on the aforementioned proposed traffic management scheme is also presented.

Set-up 1 (Operating at one end)

Proposed Traffic Management Scheme

Detailed Unit Price Analysis

PART-C

Cost of Construction Safety and Health Requirements

C-1 General Steps in Deriving the Cost of Construction Safety Health

Figure 6. Steps in Deriving the Cost of Construction Safety Health

 

C-2 Cost of Construction Safety and Health for Roads

C-2.1 Checklist of Personnel Protective Equipment per Type of Road Project

C-2.2 Cost Computation (Roads)

C-3 Cost of Construction Safety and Health for Bridge

C-3.1 Checklist of Personal Protective Equipment per Type of Bridge Project

C.3.2 Cost Computation (Bridge)

C-4 Cost of Construction Safety & Health for Buildings

C-4.1 Construction Safety Signage for Building Construction

C.4.2 Construction Safety Requirements for Standard School Buildings

C-5 Relative Cost of Construction Safety & Health to the Cost of Civil Works

Table 6. Relative percentage of cost of Construction Safety & Health (CSH) to the cost of civil works (Roads)

Project Category/Level of Improvement

Percentage of Cost of Safety & Health to the Civil Works

Roads

	1	Paved (Concrete) To Paved (Concrete)	0.30
	2	Paved (Asphalt) To Paved (Concrete)	0.20
	3	Paved (Asphalt) To Paved (Asphalt)	0.20
	4	Gravel To Asphalt	0.10
	5	Gravel To Concrete	0.20
	6	Asphalt Overlay	0.10
	7	Concrete Reblocking, 30% of existing PCCP	0.20
	8	Concrete Reblocking, 50% of existing PCCP	0.20
	9	Re-Gravelling	0.20
	10	New Road Opening, Concrete, Assume Embankment Height = 1.00m	0.20
	11	New Road Opening, Concrete, Assume Road Cut Height = 1.00m	0.30
	12	Widening Paved	0.30

Note: Derived percentage of cost of construction safety and health (as per project requirements) relative to civil works is advisably lower than the values above or within +10%.

 

Table 7. Relative percentage of cost of Construction Safety & Health (CSH) to the cost of civil works (Buildings)

TYPE OF SCHOOL BUILDING	DIRECT COST (Civil & MEPF Works)	SPL-1-Personal Protective Equipment & Safety Personnel	SPL-2-Signage & Barricades	Total Cost	Relative Percentage of Cost
ONE STOREY
1-Classroom	750,336.17	23,612.85	1,919.34	25,532.19	3.40
2-Classroom	1,373,535.73	35,254.14	2,043.02	37,297.16	2.72
3-Classroom	1,997,229.48	42,808.45	2,043.02	44,851.47	2.25
4-Classroom	2,627,365.63	49,855.12	2,690.38	52,545.50	2.00
5-Classroom	3,203,236.16	58,274.55	2,690.38	60,964.93	1.90
TWO-STOREY
2-Classroom	3,470,990.90	59,946.64	9,921.28	69,867.92	2.01
4-Classroom	5,024,465.55	76,961.01	15,419.28	92,380.29	1.84
6-Classroom	6,583,177.20	96,161.87	20,721.94	116,883.81	1.78
8-Classroom	9,196,213.52	119,466.41	25,601.52	145,067.93	1.58
10-Classroom	10,767,342.86	139,844.45	29,889.06	169,733.51	1.58
12-Classroom	12,350,759.24	157,000.82	33,393.78	190,394.60	1.54
THREE STOREY
9-Classroom	12,348,200.63	140,721.10	44,011.67	184,732.77	1.50
12-Classroom	14,989,258.61	162,046.67	52,062.82	214,109.49	1.43
15-Classroom	17,587,460.90	185,194.54	81,111.61	266,306.15	1.51
FOUR-STOREY
12-Classroom	16,206,764.28	177,962.12	67,301.41	245,263.53	1.51
16-Classroom	19,629,577.00	206,980.27	82,471.31	289,451.58	1.47
20-Classroom	22,971,845.00	236,111.82	104,788.34	340,900.16	1.48

Note: Derived percentage of cost of construction safety and health (as per project requirements) relative to civil works is advisably lower than the values above or within +10%

 

Table 8. Relative Percentage of Cost of Construction Safety & Health (CSH) to the Cost of Civil Works (Bridge)

Bridge (Based on Typical Standard Design)

1	RCDG on R.C. Pile Foundation	Length	15 l.m.	63 l.m.	168 l.m.	312 l.m.	456 l.m.
@ 1 Span of 15 l.m.	@ 3 Spans of 21 l.m.	@ 7 Spans of 24 l.m.	@ 13 Spans of 24 l.m.	@ 19 Spans of 24 l.m.
Reference/Given amount (Based on D.O. 44: Calculation of Project Duration)	Amount	5,000,000.00	20,000,000.00	50,000,000.00	100,000,000.00	150,000,000.00
Total estimated cost of Pay Item: Safety and Health		67,791.12	164,749.64	358,563.30	627,429.46	894,482.39
		Say 68,000.00	Say 165,000.00	Say 359,000.00	Say 628,000.00	Say 895,000.00
Relative Weight (%)		1.36%	0.83%	0.72%	0.63%	0.60%
Say		1.35	0.85	0.75	0.65	0.60

Maximum=

1.35

2.	PSCG on R.C. Pile Foundation	Length	15 l.m.	48 l.m.	120 l.m.	240 l.m.	360 l.m.
@ 1 Span of 15 l.m.	@ 2 Spans of 24 l.m.	@ 5 Spans of 24 l.m.	@ 10 Spans of 24 l.m.	@ 15 Spans of 24 l.m.
Reference/Given amount (Based on D.O. 44: Calculation of Project Duration)	Amount	5000000	20000000	50000000	100000000	150000000
Total estimated cost of Pay Item: Safety and Health		69,167.56	113,958.62	201,854.33	346,298.56	493,585.48
		Say 70,000.00	Say 114,000.00	Say 202,000.00	Say 347,000.00	Say 494,000.00
Relative Weight (%)		1.40%	0.57%	0.40%	0.35%	0.33%
Say		1.40	0.60	0.40	0.35	0.35

Maximum=

1.40

3.	RCDG on Bored Pile Foundation	Length	15 l.m.	72 l.m.	168 l.m.	312 l.m.	456 l.m.
@ 1 Span of 15 l.m.	@ 3 Spans of 24 l.m.	@ 7 Spans of 24 l.m.	@ 13 Spans of 24 l.m.	@ 19 Spans of 24 l.m.
Reference/Given amount (Based on D.O. 44: Calculation of Project Duration)	Amount	5000000	20000000	50000000	100000000	150000000
Total estimated cost of Pay Item: Safety and Health		62,719.95	151,745.94	295,303.50	519,149.10	741,305.67
		Say 63,000.00	Say 152,000.00	Say 296,000.00	Say 520,000.00	Say 742,000.00
Relative Weight (%)		1.26%	0.76%	0.59%	0.52%	0.49%
Say		1.25	0.75	0.60	0.55	0.50

Maximum=

1.25

4.	PSCG on Bored Pile Foundation	Length	15 l.m.	48 l.m.	120 l.m.	240 l.m.	360 l.m.
@ 1 Span of 15 l.m.	@ 2 Spans of 24 l.m.	@ 5 Spans of 24 l.m.	@ 10 Spans of 24 l.m.	@ 15 Spans of 24 l.m.
Reference/Given amount (Based on D.O. 44: Calculation of Project Duration)	Amount	5000000	20000000	50000000	100000000	150000000
		57,961.50	90,232.89	157,577.22	266,110.08	375,875.98
		Say 58,000.00	Say 91,000.00	Say 158,000.00	Say 267,000.00	Say 376,000.00
Relative Weight (%)		1.16%	0.46%	0.32%	0.27%	0.25%
Say		1.15	0.45	0.35	0.30	0.25

Maximum =

1.15

Note: Derived percentage of cost of construction safety and health (as per project requirements) relative to civil works is advisably lower than the values above or within +10%.