## 4 Results
### Analysis of Aging-Friendly Adequacy Rate of Rest Facilities  
The age group distribution under full occupancy conditions is shown in Figure 7. When fully occupied, the proportions of minors in Ginkgo Avenue, FangQiao, and LingQiao rest areas were 0%, 9.2%, and 7.3%, respectively; young adults accounted for 40.49%, 44.26%, and 46.19%; middle-aged adults constituted 46.7%, 37.87%, and 45.11%; and seniors represented 12.81%, 8.67%, and 1.4%. These results indicate that young and middle-aged adults are the primary users of the scenic area's service facilities. Under high occupancy rates, the implicit occupation of rest facilities by non-elderly groups occurs, making it difficult for seniors to find available seating and compromising their rest needs. Figure 6: Error recognition scenarios. (**a**) Passersby blocking visitors using the service facilities. (**b**) Children passing by the service facilities being mistakenly identified as occupying the seats. (**c**) A person sitting in a wheelchair directly in front of the service facility being mistakenly identified as occupying the seat. (**d**) People sitting on chairs blocking each other. The results, obtained using the evaluation method for the age-friendliness sufficiency of service facilities in scenic rest areas developed in this study, are presented in Figure 8. Position 1 (by Ginkgo Avenue) had a facility occupancy rate of 42.50%, with non-elderly individuals occupying an average of 87.19% of the seats when fully occupied, indicating a high level of age-friendliness sufficiency. Position 2 (near FangQiao) had a facility occupancy rate of 62.50%, with non-elderly individuals occupying an average of 91.33% of the seats when fully occupied, indicating a low level of age-friendliness sufficiency. Position 3 (near LingQiao) had a facility occupancy rate of 74.17%, with non-elderly individuals occupying an average of 98.60% of the seats when fully occupied, indicating a very low level of age-friendliness sufficiency. The main routes to these three locations, based on the layout of the Xuanwu Lake Scenic Area, are illustrated in Figure 9.  
For the Ginkgo Avenue rest area, the majority of visitors arrive at this zone by entering through Entrance 1 and following Route 1. Ginkgo Avenue is situated at a considerable distance from the scenic area's entrance and, as it was not currently the peak viewing season, the number of visitors was relatively low. Moreover, the area is well-equipped with a substantial number of service facilities (with an average facility density of 10.5 per hundred meters), resulting in a lower occupancy rate. This adequately caters to the needs of elderly tourists, ensuring a comfortable experience for them. Figure 8: Results of full occupancy at the three locations. Figure 7: Proportions of age groups when three rest points are full. For the FangQiao rest area, the majority of visitors also enter from Entrance 1 via Route 1. Due to the long walking distance, visitors often experience fatigue upon arrival, which increases the demand for facilities. Additionally, the area faces Xuanwu Lake, offering picturesque views, which attract visitors who prefer to rest there. However, with a limited number of available facilities (with an average facility density of 3.5 per hundred meters), the occupancy rate is high, failing to fully meet the needs of elderly tourists. For the LingQiao rest area, visitors primarily access the area via two routes: Entrance 1 through Route 3 and Entrance 2 through Route 2. Situated near the lake and a rose garden, the area is popular due to its scenic surroundings. Both routes involve long walks, resulting in a high demand for facilities. However, the number of facilities in this area is very limited (with an average facility density of 1 per hundred meters), resulting in a very high occupancy rate. Facilities are frequently occupied by non-elderly visitors, leaving the needs of elderly visitors unmet.