Traffic Accident Reconstruction: Roadway Defects

Atlanta Engineering performs accident reconstruction due to roadway defects, in order forensically determine the underlying cause of many traffic accidents.

Roadway defects created from lack of proper maintenance or construction create hazardous conditions that lead to accidents. Hydroplaning and run-off-the-road are only two types of accident caused by roadway defects.

Atlanta Engineering Services investigates accidents caused by highway defects. Our expertise in civil engineering, traffic accident reconstruction, hydrology and hydroplaning is used to identify these defects in grading, shoulder drop-offs, cross-slope issues, horizontal and vertical curvatures, super-elevation transitions, as well as slopes that can lead to improper drainage. In many cases, this is the cause of hydroplaning on wet roadways.

Typically, when a design or construction flaw is present, problems associated with hydroplaning, skidding, poor visibility, and other kinds of impairment often are the result.

The highway environment can contribute to a road accident in many ways, including:

  • Poor design or layout
  • Improperly marked construction work zones
  • Inadequate signage and traffic control devices
  • Poor road surface condition
  • Inadequate or incorrectly constructed curbs
  • Lack of adequate drainage
  • Missing guardrails and barrier walls
  • Worn, poorly maintained or incorrect road markings
  • Improper or limited sight distance


Typical Defective Roadways

  • Improper construction of super elevation
  • Improper location of catch basins
  • Excessive edge of pavement drop-offs
  • Accumulation of soil on shoulders prevent adequate drainage
  • Hazards obstructing visibility at dangerous intersections
  • Improper construction of guard rails
  • Ingress and egress ramps that are dangerously short or don't allow safe merging
  • Improperly marked construction zones
  • Slick pavement or pavement with inadequate skid resistance
  • Improper drainage that leads to dangerous street surfaces, ponding, and hydroplaning
  • Poorly maintained roadways, rutting, potholes, etc.
  • Obstructions limiting visibility at intersection
  • Absent, defective, or improper warning signage
  • Poorly placed and dangerous highway traffic signals
  • Poorly maintained pavement markings

Elvin Aycock, PE, PH, PLS, ACTAR

I have been a professional engineer for more than 35 years. I have been investigating and reconstructing traffic accidents for more than 17 years.

Simply call me to see how I can help you!

Further Reading about Traffic Accident Reconstruction

Types of traffic accidents

Collision analysis in 10 steps

The accident scene investigation 

Atlanta Engineering Services, Inc. offers scene mapping... read more here

Learn how a vehicle black box and it's downloads can prove up evidence

View a sample engineering report here

Why you need an expert witness

Calculating the stopping distance

Multiple surfaces calculator to determine the stopping distance when there is more to consider.

Vehicle speed calculator

Accidents involving motorcycles

How a vehicle inspection analysis can help you after an accident

Reconstructing accidents involving Non-Commercial trucks

Read how vehicle defects can be the cause of a traffic accident here. 

It just may be those roadway ruts that caused you to hydroplane, find out more here

Was it poor design or layout that caused the accident?

See real 3D accident simulations with this link

More 3D accident reconstruction videos can be found here

See actual photos of traffic accidents here