Hot Bitumen, Compaction Plant & Traffic Management: Risk Controls for Asphalt Works RAMS

Table of Contents

• Introduction: Three Categories That Drive Most Asphalt Incidents
• Hot Bitumen Contact: Burns Prevention and First Aid
• Compaction Plant: Roller and MEWP Safety Controls
• Traffic Management: Chapter 8, Operatives at Risk, and Failure Controls
• What Your RAMS Must Cover for Each Category
• Frequently Asked Questions

Introduction: Three Categories That Drive Most Asphalt Incidents

Analysis of asphalt surfacing accidents in UK construction consistently identifies three primary risk categories that account for the majority of serious injuries and fatalities: hot bitumen contact, plant-pedestrian conflicts involving compaction rollers and paving equipment, and traffic management failures. Any asphalt RAMS that does not address these three categories in detail is inadequate.

This guide breaks down each category and explains the specific risk controls your RAMS must specify.

Browse all trade RAMS templates on the RAMS AI trade hub — covering 22 specialist construction trades.

Hot Bitumen Contact: Burns Prevention and First Aid

Hot bituminous material delivered to site at 140-180°C causes severe thermal burns almost instantaneously on skin contact. The surfacing trade has a significantly higher incidence of burn injuries than most other construction trades — many of which are preventable with correct PPE and working procedures.

Prevention controls that must appear in your RAMS:

• Long-sleeved high-visibility clothing at all times in the paving area — no synthetic fibres (polyester, nylon) which melt and adhere to skin on contact with hot material
• Heat-resistant gloves rated to EN 407 thermal hazard standard for all operatives handling hot material or tools in the paving area
• Bitumen-proof boots — standard steel-toecap boots do not prevent bitumen from penetrating the boot sole. Specify boots with bitumen-resistant soles (e.g., those meeting EN ISO 20345 with specific chemical resistance)
• Safety spectacles where splashing from the paver hopper or lute operations is possible
• Prohibition on reaching into or leaning over the paver hopper
• Prohibition on stepping onto freshly laid asphalt
• Lute handles of minimum 1.5 m length to maintain distance from hot material during spreading

First aid for bitumen burns:

• Do not attempt to remove solidified bitumen from burned skin — this causes additional tissue damage
• Cool the burn immediately with cold running water for a minimum of 20 minutes
• Do not use ice — this causes frostbite damage to already burned tissue
• Cover with a sterile non-adhesive dressing
• Call 999 for any burn larger than 5 cm in any direction, or any burn to hands, feet, face, or genital area
• Specify the nearest emergency department with a burns unit in your RAMS, confirmed at the project pre-start briefing

Compaction Plant: Roller and MEWP Safety Controls

Compaction rollers present a crushing hazard that is often underestimated because their maximum speed is low — typically 6-10 km/h. At this speed, a person struck by a roller has no opportunity to escape, and the weight of the machine (typically 8-12 tonnes for a tandem roller) makes survival improbable. Your RAMS must specify:

• Exclusion zones around compaction plant — A minimum exclusion zone of 3 m around all operating compaction rollers, communicated to all site operatives at the pre-start briefing. No pedestrian may enter this zone while the roller is operating.
• Communication system — Compaction rollers operate with significant noise and vibration. Specify the communication system between the roller operator and the banksman/site foreman — typically hand signals for standard operations and a radio for emergency stop.
• Reversing alarm — All compaction rollers must have an audible reversing alarm in working order. Pre-start checks must confirm the alarm is functional before the roller is deployed.
• Banksman for reversing near obstructions — Any roller manoeuvre within 2 m of a pedestrian zone, drainage channel, or fixed obstruction must be controlled by a banksman positioned with clear visibility to the operator and clear of the roller's path.
• Night working — If compaction plant operations extend into hours of darkness, specify additional lighting requirements for the compaction area. Roller rear-facing lights must be operational, and operatives must wear high-visibility clothing rated to EN ISO 20471 Class 3 (the highest visibility class).

Traffic Management: Chapter 8, Operatives at Risk, and Failure Controls

Highway surfacing operations adjacent to live traffic require Chapter 8 compliant traffic management. Your RAMS must address not just the installation of traffic management, but also what happens when it fails or when operatives are at risk from traffic that does not comply with the management scheme.

• Traffic management design and approval — The TM design must be prepared by a competent person holding a current NRSWA licence (or equivalent) and approved by the relevant highway authority before any work begins. Your RAMS must reference the approved TM plan drawing number and confirm who is responsible for installation and inspection.
• TM inspection frequency — Traffic management signs, signals, and barriers must be inspected at regular intervals during the working period. Specify inspection frequency (typically every 2 hours) and the procedure for replacing damaged or displaced equipment.
• Safe clearance distance from live traffic — Specify the minimum clearance distance from the live traffic lane to the nearest operative — typically 1.0 m inside the innermost TM taper sign on a 30 mph road, increasing to 2.0 m or more on higher-speed roads. Operatives must not work within this clearance distance under any circumstances.
• Emergency TM failure procedure — If a significant element of TM fails — a sign is knocked over, lights go dark, or a vehicle encroaches into the work zone — specify the emergency procedure: stop paving operations immediately, withdraw operatives to a safe area behind a concrete barrier or vehicle, contact the TM supervisor, do not recommence until TM is reinstated.
• Abnormal traffic events — Specify how the work zone will be managed during special events (racing events, emergency vehicle access, abnormal load movements) that generate non-standard traffic patterns.

What Your RAMS Must Cover for Each Category

Hot bitumen:

• PPE specification: glove standard, boot specification, clothing material
• Prohibited actions in the paving area
• First aid procedure and burns unit location

Compaction plant:

• Exclusion zone dimension and enforcement
• Communication system between operator and foreman
• Reversing alarm pre-start check
• Banksman requirement for reversal near obstructions
• Night working additional controls

Traffic management:

• TM plan reference and approval authority
• Installation and inspection responsibility
• Safe clearance distance from live traffic by road speed
• TM failure emergency procedure

Frequently Asked Questions

What visibility class of high-visibility clothing is required for highway surfacing operatives?

For operatives working adjacent to live traffic on public highways, EN ISO 20471 Class 2 is the minimum requirement, and Class 3 is required on 50 mph or faster roads, or wherever risk assessment indicates a higher visibility level is necessary. Class 3 garments have the highest area of fluorescent and retroreflective material and provide the best conspicuity in daylight and low-light conditions. Check the specific requirements of the highway authority's specification for your contract.

Who is responsible for the traffic management if it is installed by a specialist TM contractor?

The surfacing contractor is responsible for ensuring that adequate traffic management is in place before operatives begin work. Even if the TM is designed and installed by a specialist TM contractor, the surfacing contractor cannot begin work if the TM is not in place, not approved, or not compliant. The division of responsibility for TM maintenance during the working period should be clearly agreed in the pre-start coordination meeting and documented in the principal contractor's Construction Phase Plan.

Do we need a separate risk assessment for night-time asphalt surfacing?

Night-time surfacing presents additional hazards — reduced visibility, increased fatigue risk, and potentially greater traffic speeds — that go beyond the daytime RAMS. If your scope includes night-time working, add a specific section to your RAMS addressing these additional controls: enhanced lighting, fatigue management (maximum shift length, break frequency), higher visibility clothing, additional TM requirements for higher-speed roads, and confirmation that the paving plant has adequate working lights. Alternatively, a night-work addendum to the standard RAMS is acceptable.