What this is
What is a vehicle cab ergonomic assessment?
What is a vehicle cab ergonomic assessment?
A structured check of the driver's seat, reach to controls, visibility and means of entry and exit for a specific vehicle type, such as a reach truck, counterbalance forklift or yard tractor. It is carried out with a driver in the cab rather than against a specification sheet, because the same seat and layout perform differently for different drivers.
Why is it done per vehicle type rather than once for the fleet?
Seat suspension travel, control reach and step geometry vary between vehicle types even within one fleet, and a reach truck cab has different visibility and entry demands to a counterbalance truck or a yard tractor. An assessment of one type says nothing reliable about another.
Who should carry it out?
Ergonomics, working with the drivers who actually operate the vehicle. The driver's build, the shift length and the load being carried all change what the assessment should find, and an assessment done from the doorway without a driver in the seat misses most of what matters.
Scope
When is a vehicle cab ergonomic assessment required?
This assessment is one step in the Ergonomics and MSD Prevention programme, scoped to a single vehicle type. It should not be stretched to cover handling tasks performed inside the vehicle, or the driver's exposure across a whole shift.
Use this template when
- A new vehicle type or model is being introduced to the fleet
- A vehicle's cab has been modified, refurbished or fitted with new seating or controls
- A driver complaint concerns the seat, reach, visibility or means of entry and exit
- The vehicle is due its periodic ergonomics review under the programme
- A whole-body vibration exposure assessment needs a cab-level ergonomics record to reference
Do not use it for
- Manual Picking Ergonomic Assessment, which assesses a pick face for reach, height, weight, rate and travel over a shift, not the cab
- Pallet Build and Wrap Assessment, which assesses building a pallet by hand, unrelated to vehicle operation
- Cold Environment Handling Assessment, which assesses handling tasks in chill and freezer areas, where grip, dexterity and recovery are the concern rather than the cab
- A whole-body vibration exposure assessment itself, which this record feeds rather than replaces
- Anything outside KnowErgo, which belongs in the workspace that owns that process
Compliance mapping
Which ISO 11228 requirements does this satisfy?
No regulation names this assessment directly. It sits at the intersection of whole-body vibration duties, which are regulated fairly specifically, and general machinery ergonomics standards, which are not.
| Clause | Requirement | Where it lands |
|---|---|---|
| ISO 2631-1 | Measurement and evaluation of whole-body vibration transmitted to a seated operator through the seat | Seat |
| Control of Vibration at Work Regulations 2005 (GB), reg.5 | Assessment of vibration risk and reduction of exposure so far as reasonably practicable | Seat |
| ISO 3411 | Minimum operator space envelope and seat and control dimensions for earth-moving machinery cabs | Seat |
| ISO 5006 | Test method and performance criteria for the operator's field of view on earth-moving machinery | Controls and visibility |
| ANSI/ITSDF B56.1 | Safe means of access to and egress from the operator's station on powered industrial trucks | Entry and exit |
| ISO 45001 cl.6.1.2.1 | Hazard identification proactive and ongoing, covering the equipment and population affected | Header |
| ISO 45001 cl.8.1.2 | Elimination of hazards and reduction of risk following the hierarchy of controls | Outcome |
What it does not cover
- Whole-body vibration exposure assessment, which quantifies daily exposure against the action and limit values and needs measured vibration magnitude, not a cab ergonomics check.
- Manual Handling Assessment, which covers handling done inside or around the vehicle, such as loading by hand, rather than the cab itself.
- Cold Environment Handling Assessment, which is the separate record for grip, dexterity and recovery when the vehicle is operated in chill or freezer areas.
- Powered industrial truck operator training and certification, which is a competency record, not an equipment condition record.
- Vehicle maintenance and inspection records, which cover mechanical condition and belong in the fleet register this template links to.
Global
Vehicle Cab Ergonomic Assessment requirements by country
No jurisdiction requires this specific assessment by name. What is regulated, to varying degrees, is the whole-body vibration exposure the cab either controls or fails to control.
OSH Act General Duty Clause; ANSI/ITSDF B56.1 for powered industrial trucks
No vibration exposure limit and no cab ergonomics standard in federal law. Safe means of access is addressed through the consensus standard OSHA references for powered industrial trucks.
A defect such as a missing grab handle is enforceable as a recognised hazard under the General Duty Clause even without a dedicated cab standard.
Control of Vibration at Work Regulations 2005, reg.5; PUWER 1998
Employers must assess vibration risk and reduce exposure so far as reasonably practicable, and work equipment must be suitable for the purpose and the people using it.
A seat suspension not set for the driver is a straightforward finding against both duties: the vibration control is not working, and the equipment is not suitable as configured.
ISO 2631-1, ISO 3411, ISO 5006
Measurement, dimensional and field-of-view standards exist for the equipment side, without a single assessment standard covering the cab as a whole.
Manufacturers design to these standards; the assessment checks the design still holds once the vehicle is in service and used as intended.
How to complete it
How to complete a vehicle cab ergonomic assessment, step by step
The form checks a list of yes/no conditions. Whether the record is worth anything depends on judgement calls the form does not make.
A cab checked empty tells you what is possible, not what is happening. Seat position, mirror angle and reach are all set by the last person to use the vehicle, and an assessment that does not have an actual driver seated and operating will miss exactly the settings that matter.
An adjustable, undamaged, supportive seat can still be doing nothing for vibration if its suspension is not set for the driver's weight. Treat suspension setting as a control check linked to the whole-body vibration record, not as a comfort item alongside armrests and lumbar support.
A forklift's view over the fork is a different question with a pallet on it than without. If the assessment only records visibility with the vehicle empty, it has answered a question the driver rarely faces.
A marginal step or missing handle is low-consequence on a vehicle entered twice a shift and a real hazard on one entered forty times. The frequency field exists so the outcome reflects exposure, not just the defect in isolation.
What auditors find
Most common vehicle cab ergonomic assessment findings
The cab is usually in reasonable mechanical condition. The findings concern settings, not damage, and settings drift the moment a new driver sits down.
| Finding | Clause | What fixes it |
|---|---|---|
| Seat suspension adjustable but not set for the current driver's weight. | ISO 2631-1 | Add a seat-setting check to the start-of-shift routine, not just the assessment. |
| Mirrors or cameras adjusted by the previous driver and not reset. | ISO 5006 | Include mirror and camera position in the pre-use check for shared vehicles. |
| Three points of contact not achievable because a step, handle or surface is worn or missing. | ANSI/ITSDF B56.1 | Raise the defect through maintenance immediately rather than noting it for the next scheduled review. |
| Assessment concludes in training and rotation without higher control levels considered. | ISO 45001 cl.8.1.2 | Record why cab redesign or a mechanical aid was rejected before accepting training. |
| Vehicle cab record not linked to the vibration exposure assessment it feeds. | Control of Vibration at Work Regulations 2005 (GB), reg.5 | Cross-reference the two records so a change in one triggers review of the other. |
| One assessment used to cover several distinct vehicle types in the fleet. | ISO 3411 | Raise a separate record per vehicle type; a shared cab layout does not mean a shared assessment. |
Case in point
Case in point: the seat set for someone else
A distribution site ran three reach trucks across two shifts, shared between six drivers. The vehicle cab assessment for each truck had been completed the year the trucks were purchased, confirmed the seats were adjustable and undamaged, and recorded no further action. Drivers rotated onto whichever truck was free at the start of a shift.
A day-shift driver reported ongoing lower back discomfort after several months on the trucks. The review found the seat suspension on his usual truck was set for a night-shift driver roughly twenty kilograms heavier, and had been for at least that long. Nobody had checked it since the initial assessment, which had verified the seat could be adjusted, not that it was adjusted correctly for whoever was using it that day.
The template
The template, field by field
The form exactly as it installs. Every field, option, score and conditional rule is editable, and the links to other templates come with it.
5 sections
- Reference
- ERG-045
- Archetype
- Assessment
- Record ID
- ERG-2026-000
- Scoring
- Risk level
- Direction
- Low is good
- Singleton
- Yes
- Basis
- ISO 11228
- Links
- Links Whole body vibration, Vehicle records
- Tags
- Warehouse, Ergo
- Sections
- 5
- Fields
- 47
- Follow up fields
- 3
- Repeating sections
- 0
- Links out
- 3
Header
12 fieldsAssessment ID*
Auto sequence. Format ERG-2026-00000.
The record's own ID. Other templates point at this value.
Status*
Drives who this goes to next.
- Planned2 pts
- In progress2 pts
- Complete3 pts
- Deferred0 pts
- Open0 pts
- Closed3 pts
- Overdue0 pts
Date and Time*
Completed By*
Site*
Site ID*
Format SITE-000.
Links to FDN-001 Site ID
Area
The area within the site.
Exact Location
Drop a pin for anything hard to find.
Assessor*
Assessment Trigger*
Workers Affected*
Three Cheap Fixes Nobody Checks
Seat suspension set for the wrong weight, mirrors adjusted by the last driver, and a missing grab handle. All three take minutes to fix and rarely get looked at.
Seat
6 fieldsSeat Suspension Adjustable*
- Yes3 pts
- Limited1 pt
- Fixed0 pts
Set For The Driver Weight*
- Yes3 pts
- Approximately1 pt
- No0 pts
Seat Undamaged And Supportive*
- Yes3 pts
- Worn1 pt
- Damaged0 pts
Lumbar Support Present*
- Yes3 pts
- Partly1 pt
- No0 pts
Seat Rotates Or Slides Where Needed*
- Yes3 pts
- Not needed3 pts
- No0 pts
Armrests Where Needed*
- Yes3 pts
- Not needed3 pts
- No0 pts
Controls and visibility
6 fieldsControls Within Reach Seated*
- Yes3 pts
- Some stretching1 pt
- No0 pts
Control Forces Acceptable*
- Yes3 pts
- Marginal1 pt
- No0 pts
No Twisting To See*
- Confirmed3 pts
- Some1 pt
- Constant0 pts
Mirrors Or Cameras Adequate*
- Yes3 pts
- Partly1 pt
- No0 pts
Visibility Over Load*
- Clear3 pts
- Restricted1 pt
- Blocked0 pts
Display Readable*
- Yes3 pts
- Marginal1 pt
- No0 pts
Entry and exit
6 fieldsThree Points Of Contact Possible*
- Yes3 pts
- Marginal1 pt
- No0 pts
Steps And Handles Present*
- Yes3 pts
- Partly1 pt
- No0 pts
Step Height Acceptable*
- Yes3 pts
- High1 pt
- Excessive0 pts
Surfaces Non Slip*
- Yes3 pts
- Worn1 pt
- No0 pts
Frequency Of Entry And Exit*
- Low3 pts
- Moderate1 pt
- High0 pts
Jumping Down Observed*
- No3 pts
- Occasionally1 pt
- Routinely0 pts
Outcome
17 fieldsRisk Level*
- Low3 pts
- Medium1 pt
- High0 pts
- Very high0 pts
Action Priority*
- Monitor3 pts
- Plan improvement2 pts
- Act soon1 pt
- Act now0 pts
Action Timescale*
- No action needed3 pts
- Within 6 months2 pts
- Within 1 month1 pt
- Immediate0 pts
Recommended Controls*
Highest Control Level Proposed*
- Eliminate the task4 pts
- Redesign workstation4 pts
- Mechanical aid3 pts
- Tool change3 pts
- Training1 pt
- Rotation1 pt
Worker Involved In Solution*
- Yes3 pts
- Consulted2 pts
- No0 pts
Reassessment Required*
- No3 pts
- Yes1 pt
Risk Assessment
Risk ID
Format RSK-2026-00000.
Links to FDN-012 Risk ID
Action Required*
Raise the action record, then enter its reference here.
- No2 pts
- Yes0 pts
Priority
- High0 pts
- Medium1 pt
- Low3 pts
CAPA ID
Format CAPA-2026-00000.
Links to FDN-014 CAPA ID
Action Owner
Ergonomics*
Signature*
Supervisor*
Second Signature*
ERG-045 · record IDs look like ERG-2026-000 · Links Whole body vibration, Vehicle records
Open in KnowellaRun it with agents
From a document you fill in to a programme that runs itself
The cab itself is usually fine. What slips is the setting drifting between drivers, and the link to the vibration record that depends on this one staying current.
Holds the vehicle cab assessment against the fleet register by vehicle type, and flags records that have not been repeated after a cab modification.
Keeps the vehicle records this assessment links to current, so a cab refurbishment or a new vehicle type raises the review automatically.
Connects seat and vibration findings to occupational health surveillance, so a driver's reported discomfort routes back to the vehicle's own record.
Watches for a cab assessment that has gone stale against a modified or newly introduced vehicle, and raises the review rather than waiting for the periodic date.
This template lives in KnowErgo — ergonomics. Task assessment, video posture analysis, rotation and workstation redesign.
Meet KnowErgo→Glossary
Vehicle Cab Ergonomic Assessment definitions and key terms
- Whole-body vibration
- Vibration transmitted to a seated operator through the seat and floor, which the seat suspension attenuates, and which is regulated separately from this assessment.
- Three points of contact
- Maintaining contact with the vehicle at three of four limbs when climbing in or out, which depends on functioning steps and handles being present.
- Operator's field of view
- The area visible to a seated driver, direct and via mirrors or cameras, tested by manufacturers to a defined method under ISO 5006.
- Seat suspension travel
- The range of movement a suspension seat provides to absorb vibration, which only works as intended when set for the actual driver's weight.
- Operator space envelope
- The minimum dimensional space around a seated operator specified for a cab, covering reach, headroom and clearance for entry and exit.
FAQ
Frequently asked questions about vehicle cab ergonomic assessment
Do we need a separate assessment for every vehicle in the fleet?+
Per type, not per individual vehicle. Identical vehicles of the same type and configuration can share one; a reach truck, a forklift and a yard tractor cannot.
How does this relate to the whole-body vibration assessment?+
This covers the seat and cab condition; the vibration assessment quantifies actual exposure against action and limit values. The seat check here feeds that assessment, not the other way round.
What exactly counts as three points of contact?+
Contact with the vehicle at three of the driver's four limb points while climbing in or out, using designated steps and handles rather than the wheel or a control lever as an improvised grab point.
Should visibility be checked loaded or unloaded?+
Both, separately. Visibility over the load is frequently worse than empty visibility, and a vehicle only checked empty gets a rating that misses the condition it actually operates in most of the time.
Who should be in the cab during the assessment?+
An actual driver who operates that vehicle type, seated and set up as normal. An empty-cab check against a specification tells you what the vehicle can do, not what a driver's setup actually is.
How often should the assessment be repeated?+
On the programme's periodic cycle, and immediately after any cab modification, refurbishment, or complaint about seat, reach, visibility or access. The date is a backstop; the triggers are what make an assessment wrong.
Keep going
Related templates and programmes
Industries this is written for
Programmes this belongs to
Used together in Ergonomics and MSD Prevention
Discomfort Report
Lets a worker report aches, pain or discomfort early, before it becomes an injury
Body Part Symptom Survey
Maps where in the body workers are experiencing discomfort, across a team or area
MSD Injury Report
Records a diagnosed musculoskeletal injury, including affected body part and suspected task
Early Intervention Record
Records the actions taken when discomfort is reported, before it becomes an injury
MSD Trend Review
Reviews discomfort reports and MSD injuries across areas and tasks
Task Ergonomic Assessment
Assesses a work task using video, applying the methods you configure such as RULA, REBA or WISHA
More in Warehouse Ergo
Manual Picking Ergonomic Assessment
Assesses a pick face for reach, height, weight, rate and travel over a shift
Pallet Build and Wrap Assessment
Assesses the build of a pallet by hand, covering bending at the base layer, reach at the top and wrapping posture
Cold Environment Handling Assessment
Assesses handling tasks performed in chill and freezer areas, where grip, dexterity and recovery all change
Written and reviewed by
Siddarth Singh
Founder & Chief Executive Officer, Knowella
Certified Safety Professional and industrial and systems engineer with more than a decade inside food supply chain, freight and manufacturing operations. This page was written against the current text of the standards it cites, not against secondary summaries of them.
- Certified Safety Professional (CSP), Board of Certified Safety Professionals
- MBA, University of Chicago Booth School of Business
- MS and BS, The Ohio State University, Industrial and Systems Engineering
- Six Sigma Black Belt
Sources and last review. Reviewed 16 August 2026 against:
- ISO 2631-1 — Mechanical vibration and shock, evaluation of human exposure to whole-body vibration
- ISO 3411 — Earth-moving machinery, physical dimensions of operators and minimum operator space envelope
- ISO 5006 — Earth-moving machinery, operator's field of view test method and performance criteria
- Control of Vibration at Work Regulations 2005 (GB), regulation 5
- ANSI/ITSDF B56.1 — Safety standard for low lift and high lift trucks
This page is general guidance, not legal advice. Confirm requirements with your jurisdiction’s regulator.