Site Traffic Management — Keeping Vehicles and People Apart on Trade Sites (2026)

Why Traffic Management Matters

Workplace transport incidents — vehicles striking people, overturning, or people falling from vehicles — account for a significant share of fatal and major injuries across construction and related trades every year. Many of these are not freak accidents. They follow a predictable pattern: a vehicle reverses in a congested yard, a driver's view is blocked, a worker on foot steps into the swept path, and there is no barrier, no banksman and no exclusion zone to prevent contact.

The encouraging part is that almost all of these incidents are preventable with planning that costs little more than thought. Segregating people from vehicles, removing the need to reverse, and making sure drivers can see where they are going removes most of the risk before work even starts. Traffic management is not bureaucracy — it is the difference between everyone going home and a fatal injury investigation.

The Legal Backdrop

Several pieces of UK legislation place duties on you to manage vehicle movements safely. You do not need to memorise the regulation numbers, but you should know the duties exist and that enforcement is real.

• Workplace (Health, Safety and Welfare) Regulations 1992: require workplaces to be organised so that pedestrians and vehicles can circulate in a safe manner. Traffic routes must be suitable, sufficient and positioned so people and vehicles can move without risk.
• Construction (Design and Management) Regulations 2015 (CDM): on construction projects the principal contractor must plan, manage and monitor the construction phase. Traffic routes and the separation of vehicles and pedestrians must be addressed in the construction phase plan.
• Health and Safety at Work etc. Act 1974 (HSWA): the overarching duty to ensure, so far as is reasonably practicable, the health and safety of employees and of others affected by your work — including members of the public near the site.
• HSG136 "Workplace transport safety": the HSE's practical guidance document. It is not law in itself, but it sets out what good looks like and is what an inspector will measure you against.

If something goes wrong, the HSE and the courts will ask whether you planned traffic movements, whether you segregated people and vehicles, and whether the controls you had in place were followed. "We didn't think it was that kind of site" is not a defence.

The Safe Site, Safe Vehicle, Safe Driver Framework

HSE guidance organises workplace transport safety around three pillars: a safe site, a safe vehicle, and a safe driver (or, more broadly, safe people). If you get all three right, the risk of a vehicle striking someone drops to near zero. The table below summarises what each pillar means in practice.

Safe Site

The site itself does most of the heavy lifting. A well-laid-out site removes the need for people and vehicles to be in the same place at the same time. Plan separate routes for pedestrians and vehicles, and where they have to cross, mark designated crossing points with clear sightlines. Use physical barriers — not just painted lines — to keep people out of vehicle areas, because a kerb or a fence works even when someone is not paying attention.

Design entrances and gates so vehicles are not nose-to-tail with people, and lay out routes so drivers can drive through or follow a one-way system rather than reverse. Provide turning circles where vehicles need to change direction. Keep the site tidy: trip hazards, stored materials and clutter force people to walk into vehicle routes to get past. Add adequate lighting for early-morning and winter working, set and sign realistic speed limits, and make sure signage is visible and consistent.

Safe Vehicle

A vehicle is only as safe as its condition and its visibility. Plant and vehicles should be well maintained, fit for the task and inspected before use — brakes, lights, mirrors, alarms and tyres all matter. Good all-round visibility from the cab is critical; where the design of the machine creates blind spots, fit reversing cameras, proximity sensors and audible reversing alarms to close the gap. Flashing beacons help others see the vehicle, particularly in poor light or where it moves around the site.

Safe Driver and People

Only trained, competent and authorised operators should drive plant. For construction plant that usually means a recognised plant ticket — CPCS or NPORS — for the specific machine. Where reversing or working in blind areas cannot be avoided, a trained banksman or signaller directs the movement using agreed signals and stays out of the swept path. Everyone on foot wears hi-vis so drivers can see them, and access to vehicle areas is restricted to those who genuinely need to be there.

Reversing — The Single Biggest Risk

Reversing is involved in a large proportion of fatal and serious workplace transport incidents. A driver reversing cannot see directly behind the vehicle, the swept path is unpredictable, and people on foot frequently misjudge how close they can stand. The hierarchy of control for reversing is clear and you should work down it in order:

• Eliminate it: design the site so vehicles do not need to reverse at all — drive-through bays, one-way systems and proper turning circles remove the hazard entirely.
• Where reversing is unavoidable: use a trained banksman or signaller who stays visible to the driver and out of the swept path, set up a clearly marked exclusion zone that keeps everyone else away, and rely on reversing aids (cameras, sensors, alarms) as a backup — never as the only control.

A banksman is not a casual job for whoever is standing nearest. They must be trained, briefed on the signals being used, and positioned where the driver can always see them. The moment the driver loses sight of the banksman, the vehicle stops.

Deliveries and Protecting the Public

Deliveries are where many sites lose control. A lorry arrives, the driver is unfamiliar with the site, there is nowhere obvious to unload, and people gather around to take the delivery. Plan delivery vehicle movements in advance: agree a route, a designated unloading area away from pedestrian routes, and a marshalling arrangement so drivers are directed rather than left to guess. Wherever possible, schedule deliveries so they do not coincide with peak pedestrian movement.

The site entrance and exit onto the public highway deserve particular attention. Vehicles emerging from a site can conflict with passing traffic and pedestrians on the footpath. Keep sightlines clear, use a banksman to control vehicles crossing the footway, and never let a vehicle reverse onto or off the public highway without proper control.

Members of the public — passers-by, neighbours, children — are owed the same duty of care as your workforce. For works on or near the road, you must protect the public with proper signing, lighting and guarding. Street works are governed by the New Roads and Street Works Act 1991 (NRSWA) and the signing requirements in Chapter 8 of the Traffic Signs Manual, which set out how to cone off, sign and guard works to keep both road users and pedestrians safe. Footpath closures or diversions must be planned, signed and made safe — do not simply leave people to find their own way past an open excavation or a parked plant machine.

The Traffic Management Plan

A traffic management plan pulls all of this together into a single, usable document. It does not need to be long, but it should clearly set out how vehicles and people move around the site safely. A good plan typically includes:

• A site layout drawing showing vehicle routes, pedestrian routes, crossing points, parking, loading and unloading areas, and the entrance and exit arrangements.
• One-way systems, speed limits and any reversing-prohibited areas.
• Where and when a banksman or signaller is required.
• Delivery arrangements, including booking, marshalling and unloading.
• Arrangements for protecting the public and managing the interface with the public highway.
• Lighting, signage and exclusion zones.

On a CDM project the traffic management plan links directly to the construction phase plan, and it should be reflected in your risk assessments and method statements (RAMS) and explained to everyone during site induction. A plan that lives in a folder and is never communicated achieves nothing — the value comes from people on site knowing the routes, the rules and the reasons.

Summary: Safe Site, Safe Vehicle, Safe Driver Controls

Practical Tips for Smaller Trade Sites

It is easy to assume traffic management only applies to big projects with fleets of plant. It does not. The principles scale all the way down — even a single domestic job with a skip lorry and a driveway needs thought. The risks are the same; only the scale changes.

• Think before the lorry arrives: on a domestic job, agree where the skip or delivery vehicle will pull in, and keep the customer, children and pets well away while it manoeuvres.
• Avoid reversing onto the road: if a vehicle has to reverse off a driveway across a footpath, have someone control the footway and watch for pedestrians.
• Keep the work area separate from where people walk: even on a small site, mark or fence off where your van, tools and materials are so the customer is not walking through your working area.
• Use a banksman for tight access: you do not need a formal ticket on a domestic job, but a second person guiding a reversing vehicle in a narrow street prevents most near misses.
• Hi-vis costs almost nothing: being seen is the cheapest control there is.
• Write it down: a short note in your method statement about how vehicles and people are kept apart shows you thought about it — and that is exactly what an inspector or insurer wants to see.

Good traffic management is mostly about removing the chance for a vehicle and a person to occupy the same space at the same time. Plan the movements, segregate where you can, control the interface where you cannot, and make sure everyone on site knows the rules. Do that consistently and you remove one of the biggest causes of serious injury in the trades.