- arisings
- The cut grass and plant material left behind after mowing, which needs clearing away rather than left on the verge. Maintaining Commercial Grass Verges: A Calmer Approach to a Year-Round Job
- commuted sum
- A one-off payment from a developer to the highway authority, covering the estimated extra cost of maintaining non-standard features on an adopted road over a defined period. Highway adoption process: transfer, agreement and responsibility
- contraflow
- A temporary arrangement where both directions of traffic share one carriageway, usually separated by cones or barriers, while the other carriageway is closed for works. Traffic management for roadworks: 6 steps from plan to delivery
- Falling Weight Deflectometer
- Equipment that drops a known load onto the road surface and measures how much the pavement deflects, revealing the structural stiffness of the layers beneath. Carriageway structural assessment: what engineers measure and why it matters
- Ground Penetrating Radar
- A non-destructive survey tool that sends radio waves through the pavement to map layer thickness, voids and moisture content without drilling or cutting. Carriageway structural assessment: what engineers measure and why it matters
- reconstruction
- The removal and replacement of the entire pavement structure, from the sub-base upwards, undertaken where the foundation has failed and cannot support a simple overlay. Planning a road resurfacing programme: 7 stages from survey to handover
- Section 38 agreement
- A legal agreement between a developer and the highway authority, made under the Highways Act, that sets out the standards a new road must meet before the authority will adopt it and take on maintenance responsibility. Highway adoption process: transfer, agreement and responsibility
- sightline
- The unobstructed view a driver, cyclist or pedestrian has of the road ahead, other road users and potential hazards. Adequate sightlines give time to react safely to changing conditions. What Is a Road Safety Audit
- surface dressing
- A treatment that applies a thin layer of bitumen and stone chippings to seal the surface and restore skid resistance, used where the underlying structure remains sound. Planning a road resurfacing programme: 7 stages from survey to handover
- tactile paving
- Textured surface laid at crossing points to alert visually impaired pedestrians to the transition between footway and carriageway. Different patterns indicate different crossing types. What Is a Road Safety Audit
- vehicle-mounted attenuator
- A crash cushion fixed to the back of a truck or trailer that absorbs the energy of a vehicle impact, protecting operatives and equipment in the works zone. Traffic management for roadworks: 6 steps from plan to delivery
Last updated: