Tab 5 Measuring Techniques Field Sketch

Sketching and Diagramming

Scene Marking Materials

Concrete Asphalt

Establish a Reference Point or Origin Stop Reference Point Reference Lines

Establish a Reference Point Potential Reference Points

Utilize Measuring Aids Reference Lines Temporary Reference Point

Basic Measuring Techniques Establish a Temporary Reference Point

Basic Measuring Techniques Highway Geometry Establish a Temporary Reference Point

Basic Measurements – Vehicles

Documenting Highway Information Lane and shoulder Widths Grade Curvature Cross-slope Hwy Fixtures Surface Condition Traffic Control Devices Land Use Topography

Measuring – Laser Instrument Note the paint marks on the road made by police to indicate where the vehicles came to a stop.

Forensic Mapping – Total Station

Measuring Vertical Dimensions

Practice, practice, practice…