Lec 5.pdf

Lecture 5 Jawad Butt M.Eng. Civil (UOT), PMP [email protected] 1  Lecture Topics Ontario Traffic Manual (OTM) Book 7 Site mobilization planning Arrival on site and implementation of the site mobilization plan Inside the field office - po...

Lecture 5 Jawad Butt M.Eng. Civil (UOT), PMP [email protected] 1  Lecture Topics Ontario Traffic Manual (OTM) Book 7 Site mobilization planning Arrival on site and implementation of the site mobilization plan Inside the field office - posted/available documents required Lay out of the project on the ground The Ontario Traffic Manual (OTM) 3  The Ontario Traffic Manual (OTM) The purpose of the Ontario Traffic Manual (OTM) is to provide current best practices for traffic control, to individuals or agencies, who work on MTO highways or on any street or highway open to the public in the province of Ontario. The aim of these traffic control guidelines is to achieve satisfactory levels of safety for workers and road users. OTM also caters to traffic related safety requirements provided in the Occupational Health and Safety Act (OHSA). 4 5  Configurations for Temporary Conditions Temporary Conditions: In the OTM, any work area / zone in which work is to be carried out is referred to as ‘Temporary Conditions’. There are various ‘configurations’ for temporary conditions which include : – Off Shoulder Off shoulder work is work within the right of way, but completely beyond the shoulder of the road, such that workers, equipment, or vehicles (including parked vehicles) do not encroach onto the shoulder. – Shoulder Shoulder work is where workers, vehicles, and equipment are on the shoulder, but do not encroach into the travelled lanes. – Lane Encroachment Lane encroachment is where workers, vehicles, or equipment are partially within the travelled lane, but there is at least 3.0 m (3.5 m for freeways) in width of useable lane for traffic. 6 Configurations for Temporary Conditions – Partial Lane Shift(s) A partial lane shift is where part of a lane is realigned. This is used when the encroachment of roadside operations will result in a traffic lane width of less than 3.0 m and the traffic has to be diverted to another lane; – Lane Closure(s) A lane closure is when a travelled lane(s) is closed off and traffic is redirected within the existing roadway. – Detour A detour is when traffic is diverted from its normal path because it cannot be adequately accommodated within an existing roadway. 7 Configurations for Temporary Conditions – Rolling Closure A rolling closure is the use of police car(s) and/or sign truck(s) to control the speed and restrain vehicles upstream of a construction site, so as to create a time window, to clear the road downstream of the lead vehicles and also to provide an unhindered opportunity for workers to do work and/or make traffic control changes at the work site clear of live traffic. 8 9 Component Areas for Temporary Conditions A well-designed work zone typically contains six distinct component areas, in the following sequence: 1. advance warning area; 2. approach area; 3. transition area; 4. longitudinal buffer area; 5. work area; and 6. termination area. 10  Fundamental Principles of Work Zone Design Roadway work zones should be designed around the following basic principles: – Worker safety – Road user safety (motorist, pedestrian/cyclist, and others) – Road user mobility – Advance warnings of work zone for road users – Work site identification by traffic control signs and devices – Positive guidance for road users (to avoid hazards) 11 How To Control Traffic In The Work Zone? In a work zone, the traffic may be controlled by means of: – Traffic Control Persons (TCP) – Traffic Control Signs – Traffic Control Devices – Paid Duty Police Officers 12  Traffic Control Persons (TCP) During construction a traffic control person (TCP) may be used to control work vehicles entering/exiting work area. The responsibilities of TCPs are to: – protect construction workers and the motoring public by safely regulating traffic flow and directing traffic through a work zone – stop traffic whenever required by the progress of the work; otherwise, keep traffic moving at reduced speeds to avoid tie-ups and delays – allow construction to proceed safely and efficiently – warn workers of impending danger – ensure that public traffic has priority over construction equipment – focus only on the traffic control task and not perform other work while directing traffic. 13  Traffic Control Persons (TCP) The TCP requires: – A garment (safety vest) with reflective materials, which meets OHSA regulations. – A hard hat that is Canadian Standards Association (CSA) certified. If used at night, the hard hat must have reflective tape. – Safety boots that are Canadian Standards Association (CSA) certified – Eye protection, e.g., clear safety glasses for night or overcast, tinted safety glasses when sunny, consider goggles for extreme dust and wind. – A TC-22 (stop/slow) traffic control sign for hand signaling (shown on next slide). – A two-way communication device (recommended depending on the situation). 14  Traffic Control Persons (TCP) For night-time traffic control TCPs also require: – A well-lit TCP station for adequate illumination. – A flashlight with spare batteries. – A mandatory two-way communication device. 15 Traffic Control Persons (TCP) 16 Traffic Control Persons (TCP) 17 18 Traffic Control Devices 19 Traffic Control Devices 20 Traffic Control Devices 21 Traffic Control Devices 22 Traffic Control Signs 23 Traffic Control Signs 24 Traffic Control Signs 25 Traffic Control Signs 26 Traffic Control Signs 27 Traffic Control Signs 28 Traffic Control Signs 29 Traffic Control Signs 30 Traffic Control Signs 31 Traffic Control Signs 32  Paid Duty Police Officers Paid duty police officers must be used to control traffic for work area within an intersection with active signals. For other work areas, the use of paid duty police officers is optional. Paid duty officers must comply with the MOL requirements to wear appropriate personal protective equipment (PPE). 33 Review the Ontario Traffic Manual Book 7 document uploaded to BB: 34 Site Mobilization 35  Site Mobilization Planning Site mobilization means setting up the various facilities on the site to start the project / construction operations. Site mobilization has to be planned meticulously, beforehand (before going to the site to start work) because proper site mobilization planning: – has a huge impact on productivity and safety throughout the project duration. – sets the stage for efficient work / management activities on the project and takes the project to a smooth and successful completion. 36  Site Mobilization Checklist Every site superintendent should develop a Site Mobilization Checklist to ensure that nothing gets overlooked during site mobilization planning. This will increase the site superintendent’s efficiency on subsequent projects. This checklist should be regularly updated by the site superintendent on the basis of experience. 37  Site Superintendent’s Role In Site Mobilization Planning The site superintendent has a critical role in site mobilization and needs to do the following in order to to successfully carry out site mobilization: 1. Hand off meeting 2. Review the contract documents and the project manual for mobilization related instructions 3. Review the site plan and visit the site. 4. Preparation of the site mobilization plan 5. Implementation of the site mobilization plan. 38  1-Hand Off Meeting Prior to carrying out site mobilization, the site superintendent should meet with the estimators who prepared the cost proposal for the project and negotiated the terms and conditions of the construction contract. These people will already have put a great deal of thought into the project by carefully examining the project and will also have gathered large amounts of project related information along the way, which may be invaluable for the site superintendent for preparation of the site mobilization plan. 39  Hand Off Meeting Such meetings are referred to as “ handoff meetings,” where those who estimated the project cost and who assisted with contract formation ‘hand off’ the project information to those who will construct the project i.e. the site superintendent. 40  2-Study of the Project Manual The project specifications manual typically contains provisions related to site mobilization & management such as: – Construction boundaries on the site – Protection of special artifacts – Protection of landscape elements on the site, etc. All such conditions should be reviewed by the site superintendent and incorporated in the site mobilization plan. 41 3-Review The Project Site Plan & Visit The Site The site superintendent needs to carefully study the site plan (also known as the plot plan) and visit the site to get a better perspective of the site and its surroundings. This site visit will help the superintendent immensely in understanding the site and planning the site mobilization. The Project Manager should also be consulted, by the site superintendent, during site mobilization planning to make sure that nothing is overlooked. 42 a) Location and Items To Look At During Site Visit size of the site b) Adjacent streets (also check if signalized or not) c) Site topography & drainage d) Expected layout of the buildings. e) Sequence of construction f) Existing buildings, both on the site and on neighboring sites g) Utility locations h) Location and proximity of all emergency services i) Etc. 43 4-Preparation Of Site Mobilization Plan - Using The Site Mobilization Check List 44 Preparation Of The Site Mobilization Plan Preparation of a site mobilization plan by the site superintendent involves marking, on a copy of the site plan (minimum size of 11” x 17”), of all items given below: 1. Identifying site boundary 2. Installation of site fence 3. Identifying main entrance / exit points for the site during construction 4. Determining the staging plan 5. Determining location of control points/benchmarks for the site 6. Location of the site superintendent’s field office i.e. the site trailer 45 Preparation Of The Site Mobilization Plan 7. Route for temporary hydro connection for the site 8. Location of trades’ trailers. 9. Location of sanitary facilities on the site 10. Location of refuse containers / garbage bins and access for the vehicles that will deliver them and transport them. 11. Material delivery route for the site. 46 Preparation Of The Site Mobilization Plan 12. Material off-loading & storage areas (short term and long term) 13. Location of temporary roadways / mud mats and washout areas for the site. 14. On and off-site parking for construction workers’ /visitors’ vehicles. 15. Parking, refueling and maintenance areas for heavy equipment working on the site. 47 Preparation Of The Site Mobilization Plan 16. Site Signage (Health & Safety) with location. 17. Evacuation / headcount area(s) in case of emergency site evacuation. 18. Entrance / exit points as well as the emergency route on the site for emergency response vehicles. 48 5-Arrival On Site & Implementation Of The Site Mobilization Plan 49  Service Locates Before implementation of the site mobilization plan on the site, service locates have to be obtained by the site superintendent. Locates are required each time prior to any kind of excavation on the site such as: – Excavation for site entrance/exit – Grading – Trenching for site servicing (water mains, storm mains, sanitary mains, hydro) – Trenching for footings – Trenching for installation of a fence. – Etc. 50  Service Locates Locates are markings on the ground (labeled stakes, flags, and/or paint marks) that are provided by the utility owners to highlight the existence/alignment of underground utility services in the construction area, such as: – Water Mains – Hydro – Gas Line – Bell/Rogers/Etc. – Storm – Sanitary 51 Traditional Colors For Service Locates White markings = road & sidewalk repairs (Transportation Services) Blue = Water Mains Green = Sewers Red = Electricity (Toronto Hydro) Yellow = Gas Lines Orange = Bell/Rogers – BT = Bell Canada – CATV = Rogers Cable 52 53 54  Service Locates The purpose of getting the Locates done is to: – Protect the existing underground facilities from damage during construction. – Prevent safety hazards. 55  Service Locates The contractor responsible for the work must call the Ontario One Call number (1-800-400- 2255) to request for Locates. The One Call Center then contacts all the Utility Owners of the area to have their stakes marked on the ground. Some utilities (such as storm and sanitary) are not part of the Ontario One Call system and those utilities have to be contacted separately for Locate requests. 56  Service Locates (Or Locates) The Locates process may take at least 3-4 weeks to complete and also has an expiry date before which the related work must be carried out. If the work is not executed prior to the expiry date, fresh Locates have to be requested. 57  The Locates only confirm the existence or otherwise of the underground utility and provide the alignment of that utility if it exists. The locates however, do not provide the depth at which the utility exists. The depth of the utility has to be obtained through additional measures as shown in the picture. 58 59 60  Establishing The Site Boundary & Installing The Site Fence The Site Superintendent should look for the survey monuments that are showing on the topographic survey for the site and which were either already existing on the site or were placed by the Surveyor at appropriate locations on the site to mark the site boundary. These monuments may exist in various shapes and materials as shown. 61 Establishing The Site Boundary With The Help Of The Topographic Survey 62  Establishing the Site Boundary The Topographic Survey also gives the quadrantal bearings of all site boundaries, which may be used to reconfirm the exact location of the boundary if required. 63 Establishing The Site Boundary 64  Establishing The Site Boundary & Installing The Site Fence Once the site boundary has been established, the site fence should immediately be installed. Fences are required at all construction/demolition sites because they: – Are required by law (City Bylaws , OHSA). – Act as barrier to public access for safety purposes. – Acts as a deterrent to property theft from construction sites. – Help in preventing damage to adjacent properties/roadways as a result of the site work. 65  Types Of Construction Fences. Fences are installed around the perimeter of the site and types include: – Chain link fence – Snow fence (orange color) – Wooden fence Chain link fence Snow fence Wooden fence 66  Siltation fence – Siltation fence is normally made up of geotextile material and is used in conjunction with chain link or snow fence (as not required in case of wooden fence) to control erosion and siltation from the site. – It prevents seepage of mud and water from site to the adjacent buildings/streets. 67 68 Opening Up Entrance / Exit Points For The Site 69 The Staging Plan 70  Establishing Control Points Control Points are of two types: – “Vertical Control Points” also known as benchmarks These are part of the global geodetic control network and provide very precise elevation above the standard datum plane (usually referred to as elevation "above sea level"). Often a metal disk made for this purpose (can also be a mark chiseled into stone or a metal rod driven into the ground or something else). 71 72  Horizontal Control Points – “Horizontal Control Points" also known as marks or stations. These provide Quadrantal Bearing reference. This reference is required to accurately layout the buildings on the site. 73  Transferring of Municipality Control Points To the Site The Municipalities in Ontario have Reference Stations located across the Municipality that provide vertical and horizontal control points, from which these may be transferred to the site. 74  Primary & Secondary Control Points Depending upon the size and complication of the project there may be more than one set of control points for a site such as: – Primary control points which are normally located inside the property boundary but at considerable distance from the actual construction area. – Secondary control points that are established from primary control points and are placed in more strategic and convenient locations for layout and daily use. 75  Protection Of Control Points Since the Control Points are the main source of reference for elevations as well as quadrantal bearings, high priority must be given by the site superintendent to prevent these monuments from damage/disruption during construction. The control points may be set on concrete. The advantage of concrete monuments is that these prevent settlement or shifting of the control points. 76  Verification Of Control Points Once the control points have been established by the site superintendent, they must be got checked for accuracy by the surveyor, at regular time intervals, to ensure that they are not disturbed. 77  Setting Up Of The Field Office The site superintendent has to set up his/ her field office, often referred to as the “ job shack,” which can be envisioned as their management headquarters for the duration of the project. 78  Setting Up The Field Office The location and orientation of the field office merits careful consideration especially on account of: Proximity to site entrance. Proximity to existing hydro and communication services (to facilitate getting utility connections for the site) Ease of access for visitors to the site.  Setting Up The Field Office Proximity to / view of actual workplace on site. – Trades’ Foremen have to travel to and back from the trailer for discussion with the site superintendent. – Ease of monitoring of the on going work as well as the deliveries and materials stored on site. 80 Getting Temporary Hydro Connection For The Site 81 Getting Temporary Hydro Connection For The Site – To get a temporary hydro connection for the site, an application has to be made to the local hydro company. – Once the application has been made, the hydro company representative shall make a joint visit to the site with the applicant in order to determine the best location for the temporary hydro connection (the best location is normally close to the site office). 82 Getting Temporary Hydro Connection For The Site – Once the location of the temporary hydro connection has been finalized, the hydro company shall provide the following: Invoice for the charges to be paid by the applicant for the service. the layout drawing for the temporary hydro connection. – Upon payment of the invoiced amount the applicant gets the approved layout drawing from the hydro company. 83 84 85 Getting Temporary Hydro Connection For The Site – The work from the hydro line up to the meter base location is done by the hydro company and the work from the meter base location (normally located inside the property boundary), onwards is got done by the applicant (general contractor) through hiring of an electrical contractor. – As the work is carried out, inspections are made by the Hydro Co. and Electrical Safety Authority (ESA) and the hired electrical contractor is normally responsible to coordinate with these agencies for inspections.  Electrical Safety Authority (ESA) The Electrical Safety Authority (ESA): – Administers and enforces the Ontario Electrical Safety Code. – Licenses electrical contractors /electricians. – Approves all project electrical drawings as well the drawings for the temporary electrical connections for the site. 87 Electrical Safety Authority (ESA) – Conducts safety inspections of all electrical work and installations at site. The electrical contractor is normally responsible to schedule these inspections with the knowledge of the site superintendent. – Investigates electrical accidents at construction sites. – ESA also ensures electrical products used in Ontario meet safety requirements. 88 Setting Up The Trades’ Site Trailers Close to place of work. Not too close to site superintendent’s trailer. 89  Setting Up The Sanitary Facilities One portable sanitary facility is required for 6-8 people. A separate facility should be provided for the site superintendent’s trailer / for management use. 90  Servicing Access For Sanitary Facilities Onsite location of these facilities should be such that: The trades should have convenient access so that work time is not wasted in travel to and from the facility. The servicing truck should be able to have easy access to all sanitary facilities on site. 91  Setting Up Refuse Containers / Garbage Bins May be rented. Rental company responsible for removal of waste and replacing bins. May be of different sizes such as 20 yards, 30 yards, etc. and uses ( mixed waste, concrete waste, etc.). Should be placed on the site close to actual work place and should have ease of access for waste removal from the bin. 92  Types Of Delivery Vehicles https://www.youtube.com/watch?v=rglmag3hr2I Show video Types Of Delivery Vehicles https://www.youtube.com/watch?v=_ZXpuVYIxeU Show Video Types Of Delivery Vehicles https://www.youtube.com/watch?v=8wfJD01azYQ Show Video Types Of Delivery Vehicles https://www.youtube.com/watch?v=9SkV_C1cLnk Show Video  Material Delivery Route For the Site Important points to consider in this regard are: – Entrance point of the delivery vehicles to the site – Delivery route of the delivery vehicles within the site – Sufficient turning radius for the delivery vehicles – Material unloading location(s) – Exit point of the delivery vehicles from the site – Queuing points for multiple delivery vehicles inside and outside the site 97 Material Delivery Route For the Site 98  Setting Up Of Material Storage Areas Material storage areas are required for short term storage as well as long term storage: Material storage areas may be in outside/open areas on the site as well as in a watertight and secure environment. These areas need to be clearly marked on the site. Material storage areas should be as close as possible to the actual work place so as to minimize re-handling of materials. 99  Installation Of Mud Mats Mud mat generally consists of loose stone of size 2” or greater, laid in appropriate width (2xtrailer width with clearances), length (normally 1.5x trailer length) and thickness (~18” or so to withstand delivery vehicles load) at the site entrance so that: 100  Installation Of Mud Mats – It may withstand the load of delivery vehicles without settlement. – It scrapes the mud/dirt off the tires of out going vehicles from the site so that the adjacent streets don’t get dirty. Pre-manufactured mud mats are also available made in different materials. 101 Installation Of Mud Mats 102 Installation Of Mud Mats 103 Installation Of Mud Mats 104  Setting Up Of Wash Out Areas Wash out areas are locations where the tires of out going delivery vehicles are washed so that they don’t carry mud from the site onto the adjacent roads. Washout areas are normally located close to the mud mats. 105  Marking Of On And Offsite Parking For Construction Workers’ /Visitors’ Vehicles. On a green field site the cars cannot drive on mud. Therefore the parking should be as close as possible to the main site entrance, peferably inside the site. If outside site, then permission to park shall be required from the property owner on whose property the vehicles are to be parked and there may be a cost involved also. 106  Marking Of Parking, Refueling And Maintenance Area For Heavy Equipment Working on the Site Should be out of the way from the main construction area / supply vehicles delivery route so that does not cause any obstructions. 107  Installation Of Site Signage Site signs may be categorized as: – Safety Signs – Directional Signs – Information Signs Information about project Owner Architect Contractor Site superintendent must get affixed the required signs at appropriate locations during initial mobilization stage of the project. 108 Safety Signs 109 Directional Signs 110 Entrance / Exit Points & Route For Emergency Response Vehicles. 111 Evacuation / Headcount Area In Case Of Emergency Site Evacuation. 112 Inside The Field Office 113  Inside The Field Office Once the trailer is in place, inside it you will set up: 1. Phone /fax 2. Computers, printer/scanner/copier 3. Project drawings, specifications manual and reports, etc. 4. Mandatory Posted Documents Required 114  Mandatory Posted Documents Vs Available Documents Mandatory Posted Documents: These are those documents that must be posted at a conspicuous place on the site (mostly in the site trailer). Available Documents: These are those documents that do not need to be posted but must be available at all times in the site trailer. 115  Mandatory Posted Documents Required Inside The Field Office Building Permit (should be posted on the trailer window in such a way that it is visible from outside the trailer so that the building inspector can see it when passing by). On the wall board inside the trailer the following documents must be posted: – Copy Of Occupational Health & Safety Act (Posted) – Company’s Health & Safety Policy & Program (Posted)  Mandatory Posted Documents – Name, Trade & Employer Of Health & Safety Representative (or JHSC members) – Address & Telephone Number Of Nearest MOL Office – Valid Certificate Of First Aider – WSIB Regulation 1101 – WSIB Form 82  Mandatory Posted Documents – Location Of Nearest Hospital (Mapped) – Emergency Response Procedures – Constructor’s Name And Head Office Information – MOL Approved Notice Of Project (Form 0175) Mandatory Posted Documents – Emergency phone numbers Police / fire / ambulance Hydro Gas Telephone Water Head office 119 Mandatory Documents Posted On the Wall Board Inside The Field Office 120 Available Documents 121 MOL Notice of Project (Form 0175) The project notice has to be submitted to the Ministry of Labor (MOL) for all projects = or > $ 50,000 to notify MOL regarding the start date of the project, so that MOL inspector may monitor the project for compliance of OHSA (Occupational Health & Safety Act). 122 MOL Notice of Project (Form 0175) A signed copy of the form has to be kept posted at a conspicuous place at the project or be available at the project for review by an MOL inspector The Notice Of Project has a project expiry date and has to be kept updated by informing MOL of the new project expiry date. 123  The Notice Of Project may be submitted manually or electronically by using MOL website. Manual Submission Of MOL Notice of Project (Form 0175) – White/pink copies to MOL – Yellow copy on site – Signed/Updated – NO COST 124 Electronic Notice of Project 125  Available Documents The following documents must be kept available inside the site trailer at all times: – WHMIS Hazardous Materials Inventory – A list of all ‘Danger’ signs installed In hazardous areas. – Fall arrest rescue procedure  Available Documents – First Aid Kit Should be adequate for the number of employees working on the site. First Aid Kit Inspection Record (normally inspected every 3 months) – Copy Of MOL Inspector’s Orders/Inspection Reports (Available) – MOL Approved Registration Form 1000 For All Employers Including Trades 127  MOL form 1000 – Registration Of Constructors & Employers Engaged In Construction 128  MOL form 1000 – Registration Of Constructors & Employers Engaged In Construction The MOL form 1000 has to be filled out separately by the general contractor as well as for all the trades on the site. The Site superintendent must get all these forms filled up and keep them available in his safe custody on the site at all times. MOL inspector visiting the site can ask to look at these forms to get an idea about: 129 MOL form 1000 – Registration Of Constructors & Employers Engaged In Construction – Which trades are working on the site (MOL inspectors have knowledge of the past history of various trades with respect to construction safety issues). – WSIB registration status of the trades working on the site. The information collected at site by the MOL inspector may be shared by WSIB and Revenue Canada. 130 MOL Form 1000 – Registration Of Constructors & Employers Engaged In Construction 131 Set Up Required Before Any Work May Be Started On Site The following need to be set up by the site superintendent (in consultation with the project manager), before any work may be started on site: 1. Preparation of the project schedule. 2. Setting up project controls (cost and schedule). 3. Preparation of site construction safety program 4. Preparation of quality management plan. 132 Review For Midterm 133 134