Safety and environmental risk assessment of the mountain sport and resorts of Tehran with an emphasis on the sustainable tourism carrying capacity and the provision of management approaches

Sustainable tourism is based on the concept of sustainable development. The area attracts a significant number of users for sports and tourism activities, especially on holidays and weekends. Most users (especially amateurs) move at approximately 2182 meters. The movement of athletes and various uses of environmental facilities such as cafes, restaurants, etc. lead to an increase in the sound level in the mountaineering route and the surrounding areas. The results show that with the change of time from early morning (6 am) to noon (12 pm), the sound level increases due to the increase in the number of users in the area. The average noise level along the mountaineering route is 77, 3 dB, which does not comply with the EPA standard as well as the UK and WHO standards and indicates the amount of noise. Therefore, environmental and safety priorities must also be considered. Failure to pay attention to the bearing capacity in determining the number of authorized users to enter the area and the entry of more people into the area, will cause damage to the environment, reduce the quality of services and welfare and other natural and human issues. Thus; Area management must plan in such a way as to ensure sustainable performance in addition to using existing land uses.