During his 16 years of forensic engineering, Richard has investigated crash cases that involved: 
Pavement edge drop-offs, Deficient sight distance at intersections, railroad crossings and on roadways, Work zones and work zone operations, Contractor failures to keep mud off roadways, Obstructions in the clear zone area, Lack of guardrail, improper guardrail placement, and improper end treatment, False indication from improperly adjusted optically programmed traffic signal, Improper signing, lack of signing, failure to maintain unobstructed view of signs, Improper drainage and other defects resulting in hydroplaning, Pedestrian struck due to improper signal timing, Improper control of pedestrian movement, Driver expectancy