[HTT23-P02] Experimental hazard map for accurate communication
Keywords:hazard map, universal design, color scheme
1. Background map
A lot of kinds of maps are used as background maps of hazard maps. However, some background maps are difficult to read because of low-resolution. In order to ensure the legibility of the background diagram, we use vector data.
Disaster related organizations (e.g. government offices, fire departments, police), evacuation routes / evacuation centers, hospitals, etc. are usually listed in hazard maps. but in order to prevent deterioration of visibility due to excessive information, we only list risk information of each hazard on the area and nformation on evacuation .
3. Color scheme
In the hazard map, many colors are used for map expression including disaster risk. However, there are individual differences in the characteristics of color vision, not everyone recognizes the color in the same way. For example, it has been pointed out that about 5% of men and about 0.2% of women have color vision characteristics that are difficult to distinguish between red and green (for example, Ito (2012)). Therefore, avoiding combinations of red and green, focusing on expressions of disaster risk degree, we tried to make a hazard map with attention to lightness and saturation etc. We confirmed whether people with color vision abnormality can properly read information of prototype hazard map using simulation images created with Adobe photoshop CC 2018.