Module B1 - Slide 21


The next task at an unfamiliar intersection is to analyze the intersection geometry. This is very difficult at many intersections today. The information gathered mainly depends on the presence of traffic in all lanes and on both roadways. Medians or islands may not be detected accurately by listening alone. They may be visible to someone with low vision, particularly if there is landscaping or other features that make them contrast more with the street. Judging width of street and analyzing the paths of numerous vehicles can be very challenging.

The typical technique is to stand on the corner and listen to vehicular and pedestrian traffic through one or more complete cycles to try to determine paths of all vehicles, width of street, and crosswalk location.