Design vehicle and checking vehicle.
Road designers use a design vehicle or design user to set characteristics of the road, intersection, footpath or cycleway. However, designing for comfortable use by the occasional large truck often results in overly wide roads or high-speed turns by cars, and opportunities are lost to create space for other, more frequent users such as pedestrians. A checking vehicle (sometimes called a control vehicle) is a vehicle that only occasionally uses the road section. If the large vehicle is considered a checking vehicle designers will accept that this vehicle may need to mount kerbs or momentarily enter an adjacent (non-opposing) lane to make a turn.
It is important to ensure these are not areas where pedestrians or cyclists will be waiting, and also consider the placement of roadside furniture/hardware to make sure it’s not in an area that would be needed by a checking vehicle.