*3.4.1. Web-GIS*

As there are a variety of Web-GIS types, it is necessary to select the most suitable type according to the purpose of using the system. In terms of convenience, the system should be used without having to download any special software, which would be inconvenient for users, and it would be desirable if it could be used by accessing the Website on any PC or mobile device connected to the Internet. Therefore, a series of the GIS provided by Environmental Systems Research Institute, Inc. (ESRI) was selected to develop the Web-GIS in the present study. The detailed design of the Web-GIS is as follows:

**1.** Display of walking courses on the digital maps

 At first, the layers were created by plotting the geospatial information related to walking courses and sightseeing spots on the basic digital maps, and these were overlaid to create the Web maps, using the ArcGIS Online provided by ESRI. These Web maps were disclosed on the Website as the Web-GIS, using the ArcGIS application programming interface (API) for JavaScript provided by ESRI.

**2.** Display of elevation difference of walking course on the digital maps-

The elevation difference is related to exercise strength and influences on the selection of walking courses. Therefore, using the above Web maps and a Web application template included in the GitHub provided by ESRI, elevation difference of walking course was displayed on the digital maps, and was also disclosed on the Website as the Web-GIS, using the ArcGIS API for JavaScript.

**3.** Display of sightseeing spot information related to walking courses on the digital maps

Inoue et al. [4] pointed out landscape is one of the most important walkability factors. Therefore, the system provides the sightseeing spot information related to walking courses to the users. For that, the detailed information and images related to walking courses in the operation target area in the present study were gathered, and they were displayed on the Web maps using the Web application template included in the GitHub. These Web maps were also disclosed on the Website as the Web-GIS, using the ArcGIS API for JavaScript.
