The road anomalies BlackRoad detects

Surface defects

Potholes form when water penetrates a crack, then sustained wet weather and heavy vehicle loading break up the surrounding material. They are the single largest source of vehicle damage claims against road authorities, and they grow quickly once open.

Structural failure

Also called fatigue or crocodile cracking, this is repeated traffic loading exceeding the structural capacity of the pavement. Unlike surface cracking it signals a problem beneath the surface course, and surface patching will not fix it.

Structural failure

Usually a poorly constructed paving joint, reflective cracking from a layer below, or the early stage of fatigue failure in the wheel track. Sealed early it is cheap; left open it admits water and becomes a pothole.

Structural failure

Typically thermal contraction in cold weather, or reflection of a joint in an underlying concrete slab. Regular spacing across a length of road usually points to reflective cracking from the layer beneath.

Structural failure

Rutting is permanent deformation under repeated heavy loading. Beyond the ride quality issue, ruts pond water, which creates a genuine aquaplaning risk at speed and accelerates deterioration of the surrounding surface.

Surface defects

The bitumen binder has aged and lost its grip on the aggregate, so stones are plucked out by traffic. It reduces skid resistance, generates loose chippings that damage vehicles, and is the precursor to widespread surface failure.

Structural failure

Common on rural roads without kerbing, where vehicles overrun an unsupported edge and drainage is poor. It narrows the effective carriageway and presents a serious hazard to cyclists and motorcyclists in particular.

Surface defects

Reinstatements fail at the joint when compaction was inadequate or the joint was never sealed. Because these are recorded works, a failed reinstatement is often chargeable back to the utility that made the opening.

Markings & signage

Markings lose retroreflectivity long before they look worn in daylight. Degraded lane discipline and stop lines carry obvious safety consequences at night and in rain, and are increasingly a factor in driver-assistance system failures.

Markings & signage

A regulatory sign that cannot be read is a regulatory sign that is not enforceable, and a missing warning sign at a hazard is a direct liability. Sign condition is one of the most commonly deferred and most consequential asset classes.

Furniture & drainage

Ironwork sitting proud or sunk relative to the surface is a strike hazard for cyclists and motorcyclists and hammers the surrounding surface with every axle. Rocking covers also indicate a failing bedding that will only worsen.

Furniture & drainage

Water is the primary accelerant of nearly every pavement failure mode. Standing water is also an immediate aquaplaning and pedestrian-splash risk, and repeat ponding in the same place reliably predicts where the next pothole will appear.

Furniture & drainage

Carriageway obstructions demand a response measured in minutes, not maintenance cycles. Because your fleet is already moving across the road network, detection is often faster than the first public report reaches the contact centre.

Furniture & drainage

Encroachment restricts effective width, hides signage and degrades visibility at junctions and bends. It is straightforward and cheap to clear on a planned cycle, and disproportionately expensive when it contributes to a collision.