Oversize load through a town centre
You are moving a 3.2 m wide, 4.6 m high excavator on a low loader. The combination is 19 m long. Your route passes through a town centre with a roundabout, a set of traffic lights with overhead signage, and a low bridge signed at 4.4 m. The load is not permitted to travel outside daylight hours under your arrangement. It is 14:30 and the town centre is busy with school traffic. Your escort vehicle has not arrived.
1. Identify the dimension and route conflicts and explain what must be resolved before you enter the town centre.
Read the worked answer
Several conflicts stack up:
- Height. At 4.6 m the load exceeds the 4.4 m bridge clearance by 0.2 m. You cannot pass under it. You need an alternative route that avoids the bridge, confirmed in advance, not discovered at the sign.
- Width. At 3.2 m the load is wider than a standard lane and will overhang. Through a roundabout and past traffic lights with overhead signage, the swept path and the signage clearance both matter; you need to know the actual clearance of the signage, not assume it is adequate.
- Length. At 19 m the combination will track wide and cut in on turns; the roundabout and the turn into and out of the town centre need to be assessed for swept path.
- Time and traffic. Daylight-only travel plus school traffic at 14:30 means the busiest possible window with the least margin.
- Escort. The escort has not arrived. Depending on the load's classification, an escort may be required; entering without it may breach your arrangement and removes a key set of eyes for other road users.
The correct action is to hold outside the town centre, confirm the alternative route around the bridge, confirm signage clearances, and wait for the escort before proceeding.
2. What would you do about the missing escort and the daylight restriction given the time of day?
Read the worked answer
The escort is not optional if your arrangement requires one. Proceeding without it exposes other road users to a wide, slow, high-load combination in a busy town centre with no advance warning vehicle - exactly the situation escorts exist to manage. Hold position and contact the escort and your operator.
On the daylight restriction: 14:30 leaves limited daylight, and a 19 m oversize combination through a town centre will be slow. Realistically the run may not be completed before dark, and the arrangement does not permit night travel. Options are:
- Delay the town-centre transit to the next daylight window, staging the vehicle safely outside the centre overnight.
- Re-plan the route to avoid the town centre entirely, which also solves the bridge conflict.
- Escalate to the operator to confirm whether any variation to the arrangement is lawful, rather than deciding unilaterally.
What you must not do is rush the transit to beat darkness, skip the escort, or take the bridge because the alternative is inconvenient. Each of those trades a schedule problem for a serious safety and compliance problem.