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CI1-0016-ENG-OBE-QP-V1 Jul26 NEBOSH

MANAGING CONSTRUCTION SAFELY

Success in NEBOSH Unit CN1 Managing Construction Safely (UK) and Unit CI1 Managing Construction Safely (International) depends on producing responses that apply construction health and safety principles directly to the assessment scenario. Academia Support UK provides plagiarism-free and AI-free academic support, helping learners prepare original, well-structured answers aligned with the official task requirements. Learners seeking wider support across NEBOSH qualifications can also explore our NEBOSH Assignment Help UK service for additional guidance and academic assistance.

UNIT CN1:
For: NEBOSH Health and Safety Management for Construction

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SCENARIO

A new multi-storey car park is to be erected in the centre of a large busy town. The car park will include an underground level, a ground level, and a first level. Dig & Build Construction (DBC) is a large construction company and will be the principal contractor (PC) for the job. It has previously constructed five other multi-storey car parks. There will be 50 workers on site for the duration of the build, which will take place over the warmer months to take advantage of additional daylight hours. There are also five supervisors, a land surveyor, and a site manager (SM). Before the work begins, a pre-construction phase meeting is held, and a construction phase plan is put in place.

All workers have received an induction; this covered the risks on site, along with site rules such as specific personal protective equipment (PPE) to be worn, the use of two-way radios, and making sure that all workers understand the safe system of work. The SM asks the supervisors to carry out a toolbox talk once a week. The SM also asks one of the supervisors to create a traffic management plan. The supervisor has not created one before but says that they will try. The first step they take is to decide that the site speed limit should be no more than 5mph.

The principal designer has completed the feasibility and design stages. Planning permission has been granted. The land surveyor has been working with the SM to mark out the exact location of the car park. There is currently an old 1940s single-storey prefabricated building on the site; it has been abandoned for many years and is in poor condition. Inside the building, there is evidence that people have been living there illegally. There are used hypodermic needles, an old mattress, and empty drinks cans all over the floor. The client has provided a refurbishment and demolition (R&D) survey to the PC as part of the pre-construction information. The survey confirmed the presence of asbestos in the building, such as wall cladding, pipe insulation, and electrical panel elements; however, they are currently undisturbed.

The front of the site faces onto a main road. Along the back of the site, there is a fast-flowing river that runs parallel with the main road. There are various overhead cables running along the road that the site is on and to the buildings on each side of the site. To the left of the site, there is a large building of multiple use, with three retail outlets at ground level. To the right of the site is a university library. Behind the library, there is a large space for the library workers to park; however, there are only ever two or three cars parked there. Due to the lack of space on the site, the PC has been in contact with the library to see if a temporary accommodation unit (TAU/shelter) could be positioned in the excess space in the car park. This has been agreed. As the space is limited in size, a basic TAU/shelter with kitchen area and space to sit down is delivered.

Asbestos removal

Based on the R&D survey that they glanced at a few days ago, the SM remembers that there is asbestos in the building. They do a quick internet search on how to remove asbestos before demolishing a building. The search comes up with a list of requirements from the Health and Safety Executive’s (HSE’s) Control of Asbestos Regulations 2012. The SM considers these requirements to be excessive, as the building has been abandoned for a long time. The SM selects four workers who have been with the organisation for a while to carry out the asbestos removal work. The SM communicates the executive summary of the R&D survey to them, and tells them that they have now received asbestos awareness training. The SM proceeds to issue workers with FFP3 respirators, gloves, safety boots, disposable overalls, and tool belts, to be used during this work. The SM also designates an open-top hazardous waste container outside the building where the workers should place the asbestos-containing materials (ACM) they remove from the building. The SM instructs the workers to close, and where possible lock, all of the doors in the area that they are working in. The SM states that the work will be done after the majority of workers have left the site for the day.

Once inside the prefabricated building, a worker opens the windows in the work area, because all of the workers are feeling warm in their disposable overalls. The workers have decided to start on the pipe lagging and to use the ‘wrap and cut’ method where possible. This requires one of the workers to support the section of pipe being cut out, while the other worker cuts the pipework using a reciprocating saw. Once a section of pipework has been removed, it is passed to the third worker to place in a hazardous waste bag. The fourth worker is using a domestic vacuum cleaner to collect the dust produced by this activity. Once all of the pipe lagging is removed, the bags containing the pipework and lagging are placed in the open-top hazardous waste container. The workers then return to remove the other types of ACM and bag them in the same way. Once all of the ACM have been removed, the workers help ensure that the entire work area is thoroughly cleaned, before finishing work and returning home.

Demolition

Based on the demolition method statement and risk assessment prepared for this activity, high-reach demolition machinery and an excavator will be used to dismantle the building structure. This is to prevent workers having to complete the work manually, or from a height. The SM requests the statutory inspection records for the equipment, as well as the competency certificates of the operators. The SM creates an exclusion zone using metal wire fencing, including a padlocked gate around the demolition area to prevent unauthorised entry. Warning signs are displayed. The SM checks that dust suppression will be used and confirms that there is a sufficient water supply to facilitate this. All workers on site will be provided with safety hats, FFP3 respirators, hearing protection with an attenuation factor of 30 dB(A), safety boots and gloves, for their protection. The SM decides to carry out the demolition during the weekend, when the university library will be closed. This will reduce the impact on the public from noise, dust, and waste truck movement. They select a designated location for the siting of demolition waste, which will be sorted by hand.

On the day of the demolition, the SM conducts a site inspection and informs available workers not to go near to the structure. They then give the instruction that the demolition activities can commence. Only when the SM has personally inspected the area and declared it safe, can workers return.

Once the site is clear, the next task is to install the steel sheet piling that will form the walls of the underground level of the car park. Initially, the perimeter will be pre-augered to the full depth of the piles before installation. This is carried out using an auger mounted on a telescopic leader rig and will help ensure that the sheet piles enter the ground smoothly. Once the piles are installed, the space between the piles will be excavated to create the underground level.

Delivery of materials

A large flatbed, crane-mounted delivery vehicle arrives with the nine-metre-long steel sheet piles. The two-metre-high metal wire fence around the site means that the vehicle has to partially park on the pavement. The driver turns on the vehicle’s hazard lights and walks up to the site entrance where a worker is stationed. The driver explains that they have a delivery and asks where they want the steel sheet piles placed. The worker at the site entrance says that they will contact the SM to come down to help them. The driver tells the worker that they have been doing this job for 20 years, so will not need much help. The driver returns to sit in their vehicle. The size of the delivery vehicle means that it is affecting both the use of the pavement by pedestrians, and the flow of traffic on the road. However, this has limited impact, as the delivery has been scheduled for early in the morning, so there is not much traffic on the road.

A short while later the SM arrives, along with three workers (Workers A, B, and C). The SM speaks to the driver and explains where the steel sheet piles should be positioned. The SM asks if the driver has completed a pre-use inspection, to which the driver replies that they have. The SM continues to explain that the workers will help to unload the sheet piles. The SM tells the workers to remove the metal wire fencing at one side of the front of the site, so that the steel sheet piles can be stacked there. The SM then leaves quickly to receive a phone call. The driver starts the process of extending the vehicle’s outriggers into the road. As they move to the other side of the vehicle, they nearly collide with a member of the public who is walking out into the road to go around the delivery vehicle. The driver starts to extend the outriggers towards the site; as the vehicle is partially parked on the pavement, the outriggers on this side do not reach the ground due to the angle of the vehicle.

Once the ambulance has left, the SM turns to Workers B and C and demands to know what happened. All that the workers know is that Worker A fell off the flatbed of the vehicle. Worker C is visibly shaken, so the SM tells them to go and have a break and a drink while they calm down. The SM then tells Worker B that both they and Worker C need to write down what they saw. The driver is concerned that, if it is found out that the cause of the incident was the vehicle tipping, they will get into trouble with their employer. So, while everyone is distracted, they wedge some pieces of wood under the outriggers so that the vehicle will not tip again.

Once the situation has calmed down and the members of the public have left, the SM speaks to one of the supervisors and informs them of the incident. The SM asks them to set up some barriers and gather any information that they can.

Installation of steel sheet piles

The following day, a large excavator with an auger fitted to it has arrived at the site. The worker at the entrance talks to the delivery driver and explains that they will open the fencing for them to drive onto the site. The worker then speaks into their two-way radio. A few minutes later, workers arrive to remove the fencing in front of the excavator, so that it can be driven onto the site. There are three workers on site who are fully trained and competent to operate an excavator. Over the next two days, the location for the steel sheet piles is pre-augered to a depth of nine metres. The steel sheet piles are then driven into place using a hydraulic press.

The excavation

The auger has been removed from the excavator and collected from the site. This excavator will now be used to excavate the space for the underground level of the car park. Before the work begins, the SM makes sure that all of the site supervisors are trained in permit-to-work systems. A permit-to-dig is in place; the permit specifies the control measures to be followed and emergency arrangements. Copies of the permit are displayed in both the site office and the TAU/shelter. The details on the permit are covered by the SM during daily safety talks with the workers. The workers are required to confirm that they understand the control measures. The SM has also checked that each supervisor has a copy of the permit-to-dig, so that they can monitor the work and liaise with those involved. At the end of the working day, the permit needs to be closed out. To do this, the supervisor will report to the SM, who will be responsible for closing out the permit.

The client’s safety adviser (CSA) decides to make an unscheduled visit to the site. They identify themself to the worker at the entrance and enter the site. As the CSA is taken to the SM, they notice some defects in the two-metre-high metal wire perimeter fence. The CSA asks the SM who the temporary works co-ordinator is on the site; the SM responds that there is not one for this project.

The CSA writes in their notepad and explains that they are going to carry out a site inspection. During the site inspection, the CSA observes the piling mat (a large, compacted base for keeping piling vehicles stable) used for the installation of sheet piles, as well as some falsework being set up. Once the inspection has been completed, the CSA asks the SM for the temporary works procedure, temporary works register, the design for the piling mat, as well as documentation for the falsework being set up on site. The SM opens the bottom drawer of their desk and brings out a folder labelled ‘temporary works documents’. Inside the folder is a single document, a temporary works procedure that appears to have been generated by Artificial Intelligence (AI) and then signed by the SM.

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Task 1: Controlling health risks

1

What additional controls could be implemented to reduce the risks to the workers collecting the used hypodermic needles? Note: Your answer must relate directly to the scenario.

(10)

Task 2: Health and safety culture

2

Explain what the positive indicators of health and safety culture are, on this site. Note: Your answer should be based on the scenario only.

(15)

Task 3: Risks associated with a cable strike

3

Outline the precautions that can be taken to minimise the risks associated with a cable strike when excavating near underground electrical cables.

(18)

Task 4: Protecting others from harm

4

The delivery and offloading of the steel sheet piles presents risks to workers, and other people in the surrounding area. What additional control measures could help reduce the risk of injury to those who may be affected by this activity? Note: Your answer must relate directly to the scenario.

(12)

Task 5: Organisational factors

5

What are the organisational factors that could positively influence health and safety behaviour? Note: You should support your answer using relevant information from the scenario.

(8)

Task 6: Demolition

6

(a) What existing control measures reduce the risks associated with the demolition activities? Note: Your answer must be based on the scenario only. (b) What additional control measures could be put in place to further reduce the risks associated with the demolition activities? Note: Your answer must relate directly to the scenario

(17) (17)

Task 7: Traffic management

7

Comment on whether traffic is managed well on this site. Note: Your answer should be based on the scenario only.

(16)

Task 8: Controls of working with asbestos

8

Comment on how effectively the removal of asbestos has been controlled. Note: Your answer must be based on the scenario only.

(26)

Task 9: Emergency procedures in practice

9

Comment on how well the organisation was prepared for the incident and post-incident investigation. Note: Your answer must be based on the scenario only.

(11)

Task 10: Excavation task risk assessment

10

The SM has identified the excavation as an area of concern. For this task, determine the following (a) specific hazards associated with this task. (b) existing control measures in place to help reduce the level of risk. (c) additional control measures that can be put in place to further reduce the level of risk. Notes: Your answers must relate directly to the scenario. You must use the table in the answer template to structure your answer. Do not duplicate your existing control measures in (b). Do not duplicate your additional control measures in (c).

(10) (15) (15)

11

Prioritise FIVE of your additional control measures from Question 10(c). For EACH prioritised control, briefly justify your prioritisation in terms of risk reduction. Note: You must use the table in the answer template to structure your answer.

(10)

End of examination. Get yourself prepare for followup-questioning. Explore our NEBOSH Interview Preparation UK

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Frequently Asked Questions

Who can use your NEBOSH Managing Construction Safely academic support service?

Academia Support UK provides academic support for learners completing NEBOSH Unit CN1 Managing Construction Safely (UK) and Unit CI1 Managing Construction Safely (International). Support is suitable for candidates studying independently, through training providers or as part of employer-sponsored professional development, with guidance tailored to the specific assessment scenario and learning outcomes.

Can you support assessments involving excavation, demolition and temporary works?

Yes. Support covers all major topics commonly assessed within Managing Construction Safely, including excavation activities, demolition planning, temporary works, asbestos management, construction traffic management, cable strike prevention, risk assessment, emergency arrangements and wider construction health and safety controls relevant to the assessment scenario.

How are your NEBOSH CN1 and CI1 answers tailored to individual assessment requirements?

Each response is prepared around the learner`s assessment brief, official scenario, task instructions and assessment criteria. This structured approach helps ensure that every answer remains relevant to the construction scenario presented rather than relying on generic examples or pre-written templates.

Will the answers follow UK health and safety principles where applicable?

Yes. Where relevant to the qualification being studied, responses are developed with reference to recognised construction health and safety principles and accepted industry practice. Learners are also encouraged to consult official guidance published by organisations such as NEBOSH and the Health and Safety Executive (HSE) to strengthen their understanding of the subject.

Can Academia Support UK help me prepare before my NEBOSH assessment deadline?

Yes. Academia Support UK offers structured academic support throughout the assessment process, helping learners organise their work, understand the assessment scenario and prepare clear, plagiarism-free and AI-free responses within their available timeframe while maintaining academic integrity.