Toolbox Talk: Safe Operation of Plant on Site – Considering Environmental Factors & Braking Distances
INTRODUCTION:
Recent incidents, such as the train crash in Wales, remind us of the critical importance of adjusting our work practices based on environmental factors. On-site conditions can significantly affect plant operations, especially when it comes to machinery movement and braking performance. Today, we’ll discuss the steps we need to take to operate safely, particularly in light of poor adhesion conditions and the need for safe braking distances.
KEY POINTS:
1. Environmental Conditions and Poor Adhesion
- Be aware of environmental conditions that can impact plant and machinery operation, including wet weather, frost, mud, loose gravel, or leaves.
- These conditions can cause poor adhesion between tyres/tracks and the ground, reducing grip and increasing stopping distances.
- Regularly check the weather forecast and be vigilant for any sudden changes.
2. ADAPTING TO POOR ADHESION
- Operate machinery at reduced speeds in adverse conditions to maintain full control.
- Take extra caution on inclines and declines, as these areas are more prone to poor adhesion.
- Avoid sharp turns or sudden changes in direction that may increase the risk of sliding or skidding.
- Conduct a site walkaround to identify any areas where conditions may be worse (e.g., near water runoff, shaded areas).
3. BRAKING DISTANCES
- Understand that braking distances will increase in poor adhesion conditions:
- Wet or icy surfaces can double or triple stopping distances.
- Maintain greater spacing between machines to allow for safe stopping.
- Keep a minimum safe distance from other equipment, materials, or personnel at all times.
- Follow site-specific guidance on minimum safe distances, adjusting them as needed based on current conditions.
4. COMMUNICATION & AWARENESS
- Use radios and hand signals effectively to communicate with other operators and ground personnel.
- Make sure to alert others if conditions worsen and affect your machine’s handling or stopping capacity.
- Consider assigning spotters if operating in a congested area with limited visibility.
5. DAILY CHECKS & MAINTENANCE
- Perform a daily pre-use inspection of all plant equipment, paying attention to:
- Tyre tread and condition
- Brake performance and response time
- Hydraulic and mechanical functions
- Report any concerns immediately and ensure repairs are completed before resuming operations.
6. OPERATIONAL BEST PRACTICES
- Do not rush; prioritise safety over speed, especially when handling heavy or mobile plant equipment.
- Engage low-speed gears if necessary to enhance control.
- Make use of engine brakes (if available) to assist in slowing down on slippery surfaces.
- When parking, choose locations that are level and stable, avoiding slopes or loose ground.
EMERGENCY PROCEDURES:
- In the event of a skid or loss of control:
- Do not panic; reduce speed gradually by easing off the throttle.
- Avoid sudden braking or steering adjustments.
- Inform the team of the incident and follow the site’s emergency protocols.
SUMMARY:
Environmental factors can quickly change, affecting machinery operations and increasing risk. By taking extra precautions, maintaining greater distances between machines, and adapting our practices based on conditions, we can minimize the potential for incidents and keep everyone on-site safe.
QUESTIONS / FEEDBACK:
- Does anyone have any questions or concerns about adjusting operations in poor adhesion conditions?
- Is there any additional site-specific information we should consider for today’s conditions?
Thank you for your attention and let’s stay safe out there!
