| 摘要 |
A portable, plastic drawing template for quickly and accurately diagramming traffic intersections and accident scenes while preserving and establishing scaled curblines. Diagrams of intersections made with the disclosed template maintain the desired "square" geometrical relationship between intersecting streets or roads diagrammed. Numerous cutouts in the form of various symbols and shapes enable vehicles, topographical features, and other details to be drawn. The resilient, preferably L-shaped template has a square midsection integral with a pair of outwardly projecting, perpendicularly-oriented legs with calibrated edges. Each leg comprises a dimensioning slot and a projecting slot parallel with and spaced apart from one another for establishing critical drawing points used to align curblines. The template external and internal corners are curved differently to draw arcs of varying curvatures to be fitted to various curblines. Critical inner slots are collinear with critical edges of the template to preserve the resultant "squareness" of the intersection and curblines drawn.
|
