What type of visualization should be utilized to analyze customer travel patterns effectively?

Using a line layer map is particularly effective for analyzing customer travel patterns as it allows for the visualization of geographical data and movements across locations. This type of visualization can display routes, flow of travel, and connections between various points of interest on a geographic layout.

Line layer maps can effectively convey not just the destination, but also the path taken, distinguishing between different travel routes and demonstrating the frequency or volume of travel to specific areas. This is essential when assessing travel behavior, as it highlights patterns in movement and geographical insights that are critical in understanding customer dynamics.

In contrast, while pie charts are useful for showing proportions, they do not effectively represent geographic data or travel paths. Bar charts can present comparison data effectively but lack the spatial context needed for travel analysis. Scatter plots might offer insights into relationships between variables but do not convey movement patterns across a map. Thus, the line layer map stands out as the most appropriate choice for visualizing and analyzing travel patterns.