## 3 Results and Discussion
### Locating Friends and Family Using Smartphones  
The last two questions of the interview explored interviewees' opinions about the possibility to locate other family members within the building and investigate their opinion on the usage of smartphone during evacuation. The responses show that all interviewees believed that, yes, they would like the ability to locate other family members within the building. However, it was stated that in order for the system to work as intended, all building occupants needed to be trained on that system. Locating occupants as stated by the interviewees would be important for family members and also for firefighters/fire services to know who has or has not left the building. Another interviewee stated that technology is advancing on a daily basis and locating others within the building could be developed. The same interviewee gave examples of simple measures for locating others: using CCTV or inferring the presence of occupants from switched-on lights or running air conditioning. Interviewees believed indoor mapping could be developed to locate others within the building.  
This would reduce panic as it will make occupants know whether family members have evacuated the building or are still inside. Although interviewees stated that, yes, it is possible to locate family members within the building, they are not sure how the system or application could be developed. Concerns were expressed by four interviewees about how exactly locating family members is possible, for example, their floor or even their location within the floor. They assumed the location will just identify whether their family members are in the building or have evacuated. On the other hand, other interviewees believed that the system or the application could actually locate their family members' or neighbours' exact location within the building. The system or the location option will be activated as soon as the occupants or the visitors enter the building. Although interviewees agreed that by locating others within the building will reduce evacuation delay, they acknowledged that the system needs to contain all phone numbers of occupants and visitors whilst being connected to the system that would identify exactly their location within the building.  
Two interviewees explained that since they have family within the same building, they will actually ignore the emergency evacuation message in order to help their family members. By locating family members, they would be able to provide assistance much faster. Two other interviewees explained that they are already using a similar application to locate each other within their family, but it knows a street location and not their exact location within the building. The same interviewees explained that the system or the application needs to contain locations of all the family members within the building.  
However, occupants would have to grant access by the building management team to their location within the building. One interviewee added to this by stating that there is an option called \"live location\" which they use within their family. They stated a similar system could be developed that would aid occupants during the evacuation. Although all interviewees agreed that such an option is possible as stated previously, none of the interviewees were sure if the location could be detailed enough to show the exact location within the floor. However, they believed that if such a system is developed, it will be very beneficial for the evacuation process, would reduce stress and panic, and speed up evacuation.